CN106111193A - A kind of preparation method of silver nanoparticles loaded catalyst hydrogel - Google Patents
A kind of preparation method of silver nanoparticles loaded catalyst hydrogel Download PDFInfo
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- CN106111193A CN106111193A CN201610453065.0A CN201610453065A CN106111193A CN 106111193 A CN106111193 A CN 106111193A CN 201610453065 A CN201610453065 A CN 201610453065A CN 106111193 A CN106111193 A CN 106111193A
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- hydrogel
- silver
- linking agent
- cross
- monovalence
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- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 title claims abstract description 184
- 239000000017 hydrogel Substances 0.000 title claims abstract description 158
- 239000003054 catalyst Substances 0.000 title claims abstract description 55
- 238000002360 preparation method Methods 0.000 title claims abstract description 32
- 239000000178 monomer Substances 0.000 claims abstract description 113
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 108
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 92
- 229910052709 silver Inorganic materials 0.000 claims abstract description 90
- 239000004332 silver Substances 0.000 claims abstract description 90
- 229920000642 polymer Polymers 0.000 claims abstract description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000000203 mixture Substances 0.000 claims abstract description 23
- 239000010453 quartz Substances 0.000 claims abstract description 23
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000003860 storage Methods 0.000 claims abstract description 23
- 229920002521 macromolecule Polymers 0.000 claims description 40
- KPGXRSRHYNQIFN-UHFFFAOYSA-N 2-oxoglutaric acid Chemical group OC(=O)CCC(=O)C(O)=O KPGXRSRHYNQIFN-UHFFFAOYSA-N 0.000 claims description 28
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical group [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims description 24
- 238000006116 polymerization reaction Methods 0.000 claims description 22
- 230000009471 action Effects 0.000 claims description 21
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical group C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 claims description 21
- 150000003254 radicals Chemical class 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 20
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical group [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 16
- HWXBTNAVRSUOJR-UHFFFAOYSA-N alpha-hydroxyglutaric acid Natural products OC(=O)C(O)CCC(O)=O HWXBTNAVRSUOJR-UHFFFAOYSA-N 0.000 claims description 14
- 229940009533 alpha-ketoglutaric acid Drugs 0.000 claims description 14
- 229910001961 silver nitrate Inorganic materials 0.000 claims description 12
- 241000209094 Oryza Species 0.000 claims description 10
- 235000007164 Oryza sativa Nutrition 0.000 claims description 10
- 239000002105 nanoparticle Substances 0.000 claims description 10
- 235000009566 rice Nutrition 0.000 claims description 10
- 235000013339 cereals Nutrition 0.000 claims description 9
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 8
- 125000002843 carboxylic acid group Chemical group 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 8
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 claims description 7
- 229940092714 benzenesulfonic acid Drugs 0.000 claims description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 6
- KQTXIZHBFFWWFW-UHFFFAOYSA-L disilver;carbonate Chemical compound [Ag]OC(=O)O[Ag] KQTXIZHBFFWWFW-UHFFFAOYSA-L 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 6
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims description 4
- YPNVIBVEFVRZPJ-UHFFFAOYSA-L silver sulfate Chemical compound [Ag+].[Ag+].[O-]S([O-])(=O)=O YPNVIBVEFVRZPJ-UHFFFAOYSA-L 0.000 claims description 4
- 229910000367 silver sulfate Inorganic materials 0.000 claims description 4
- BCAARMUWIRURQS-UHFFFAOYSA-N dicalcium;oxocalcium;silicate Chemical compound [Ca+2].[Ca+2].[Ca]=O.[O-][Si]([O-])([O-])[O-] BCAARMUWIRURQS-UHFFFAOYSA-N 0.000 claims description 3
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 2
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims 3
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical group [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims 2
- 238000006555 catalytic reaction Methods 0.000 abstract description 10
- 239000002131 composite material Substances 0.000 abstract description 10
- 230000003197 catalytic effect Effects 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 9
- 229910000033 sodium borohydride Inorganic materials 0.000 abstract description 8
- 239000012279 sodium borohydride Substances 0.000 abstract description 8
- STZCRXQWRGQSJD-GEEYTBSJSA-M methyl orange Chemical compound [Na+].C1=CC(N(C)C)=CC=C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-GEEYTBSJSA-M 0.000 abstract description 7
- 229940012189 methyl orange Drugs 0.000 abstract description 7
- CXKWCBBOMKCUKX-UHFFFAOYSA-M methylene blue Chemical compound [Cl-].C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 CXKWCBBOMKCUKX-UHFFFAOYSA-M 0.000 abstract description 7
- 229960000907 methylthioninium chloride Drugs 0.000 abstract description 7
- BTJIUGUIPKRLHP-UHFFFAOYSA-N 4-nitrophenol Chemical compound OC1=CC=C([N+]([O-])=O)C=C1 BTJIUGUIPKRLHP-UHFFFAOYSA-N 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 239000000975 dye Substances 0.000 abstract description 6
- 239000004094 surface-active agent Substances 0.000 abstract description 4
- 238000004090 dissolution Methods 0.000 abstract description 2
- 238000001035 drying Methods 0.000 abstract description 2
- 230000001678 irradiating effect Effects 0.000 abstract 1
- 230000009467 reduction Effects 0.000 description 10
- 238000009826 distribution Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000003917 TEM image Methods 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- IQUPABOKLQSFBK-UHFFFAOYSA-N 2-nitrophenol Chemical compound OC1=CC=CC=C1[N+]([O-])=O IQUPABOKLQSFBK-UHFFFAOYSA-N 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- AHIBWURJLGCHAY-UHFFFAOYSA-N [S].C1=CC=CC=C1 Chemical compound [S].C1=CC=CC=C1 AHIBWURJLGCHAY-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000090 biomarker Substances 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000009881 electrostatic interaction Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002082 metal nanoparticle Substances 0.000 description 1
- 125000005395 methacrylic acid group Chemical group 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229940054334 silver cation Drugs 0.000 description 1
- 230000005476 size effect Effects 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/06—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/48—Silver or gold
- B01J23/50—Silver
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/20—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state
- B01J35/23—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state in a colloidal state
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
- Polymerisation Methods In General (AREA)
Abstract
The invention discloses the preparation method of a kind of silver nanoparticles loaded catalyst hydrogel, step is as follows: by high polymer monomer, cross-linking agent, light trigger and monovalence silver ion salt mixed dissolution by a certain percentage in water, then obtains the hydrogel of silver nanoparticles loaded in the solution addition quartz molds of mix homogeneously and irradiating the regular hour under ultraviolet light；Silver nano-grain in this Nanometer composite hydrogel is evenly distributed, average-size 2 3nm；Being not added with surfactant in course of reaction, silver nano-grain clean surface, surface activity are high, have the catalytic performance of excellence；This silver nanoparticles loaded catalyst hydrogel is degraded at sodium borohydride and is had the catalysis activity of excellence during the organic dyestuff such as paranitrophenol, methyl orange or methylene blue are tested, and does not cause secondary pollution after having reacted；Through the catalytic effect that still keep good is recycled for multiple times；The preparation process of this Nanometer composite hydrogel is few, is easy to storage and transport after drying, is conducive to the actual application of industry.
Description
Technical field
The present invention relates to the reduction technique neck of the organic dyestuff such as paranitrophenol in industrial wastewater, methyl orange and methylene blue
Territory, is specifically related to the preparation method of a kind of silver nanoparticles loaded catalyst hydrogel, and the Nanometer composite hydrogel of preparation is used for
The reduction treatment of the organic dyestuff such as paranitrophenol, methyl orange and methylene blue in industrial wastewater.
Background technology
Nanotechnology has become as the cutting edge technologies interdisciplinary such as physics, chemistry, biology, medical science and material science, by
Have in metal nanoparticle and be different from the optical property of bulk metal, electrical properties, magnetic property, thermal property and biochemical
Matter, it can apply to multiple fields such as sensing technology, optical device, biomarker, medicine reprinting and catalysis.Wherein, transition
Argent nano-particle is on the one hand due to quantum size effect, and redox ability is greatly enhanced, on the other hand due to its chi
Very little little, surface area is big, has the strongest absorbability to organic dyestuff, and this makes silver nano-grain have the catalytic performance of excellence.
But silver nano-grain is easily reunited, very difficult acquisition is evenly distributed and small-sized silver nano-grain；Additionally, silver nano-grain
Leak into and environment also can cause pollution.In order to solve the problems referred to above, generally by silver nano-grain surface modification and join each
Plant and carrier stops it to reunite and limits its leakage.But this way can reduce surface activity and the catalytic of silver nano-grain
Can, or preparation process is complicated, cost is high, is unfavorable for being generalized to the actual application of industry.
Summary of the invention
In order to solve the problem that above-mentioned prior art exists, it is an object of the invention to provide a kind of silver nanoparticles loaded
The preparation method of catalyst hydrogel, the present invention only prepares the water-setting of silver nanoparticles loaded catalyst with single step reaction
Glue, i.e. forms hydrogel while forming silver nano-grain；The hole utilizing hydrogel is reunited to limit silver nano-grain, can
Silver nano-grain is dispersed in hydrogel, and the silver nano-grain content wherein embedded is adjustable.
For reaching object above, the present invention adopts the following technical scheme that
The preparation method of a kind of silver nanoparticles loaded catalyst hydrogel, comprises the steps:
Step 1: high polymer monomer, cross-linking agent, light trigger and monovalence silver ion salt are blended and dissolved in water, high score
Sub-monomer, cross-linking agent and light trigger are used for being formed hydrogel, and monovalence silver ion salt is used for being formed silver nano-grain, high after mixing
The mol ratio of molecule monomer, cross-linking agent, light trigger, monovalence silver ion salt and water is 1000:(10-200): (1-3): (1-
50): 55600, wherein the group of high polymer monomer is carboxylic acid group, carboxylic acid group's salt, sulfonic group, sulfonic group salt, benzenesulfonic acid base, benzene sulphur
Acidic group salt, phosphate or phosphate salt, cross-linking agent is N, N '-methylene-bisacrylamide, light trigger be Ammonium persulfate. or α-
Ketoglutaric acid, monovalence silver ion salt is silver nitrate, Disilver carbonate or silver sulfate；
Step 2: the solution of step 1 mix homogeneously is added in quartz molds and place irradiation under ultraviolet light 6 hours with
On, a step obtains silver nanoparticles loaded catalyst hydrogel；The free radical that light trigger provides under ultraviolet light irradiates makes height
Molecule monomer and cross-linking agent polymerization form hydrogel, and monovalence silver ion is divided by the electrostatic attraction even action of high polymer monomer group
Cloth, among hydrogel, is reduced to silver nano-grain under ultraviolet light irradiates；It is dried the hydrogel of this silver nanoparticles loaded
It is easy to storage and transport.
Attracted each other by electrostatic interaction between monovalence silver cation and high polymer monomer, ultraviolet light not only trigger monomer and
Cross-linking agent polymerization forms hydrogel, and reduction silver ion is silver nano-grain simultaneously, and silver nano-grain is evenly distributed in water
In gel network, average-size is at 2-3nm；Preparation process does not add surfactant, and silver nano-grain surface activity is high, urge
Change performance good.
Compared to the prior art the present invention, has the advantage that
The present invention with the single step reaction method being easy to promote prepare catalytic performance excellent be loaded with small-sized, distribution all
Silver nano-grain catalyst hydrogel even, that process without surfactant.High polymer monomer, cross-linking agent, light are drawn by the method
Send out agent and monovalence silver ion salt mixed dissolution by a certain percentage in water, then the solution of mix homogeneously is added in quartz molds also
The irradiation regular hour obtains the hydrogel of silver nanoparticles loaded under ultraviolet light.Silver nanoparticle in this Nanometer composite hydrogel
Even particle distribution, average-size is at 2-3nm；Course of reaction is not added with surfactant, silver nano-grain clean surface, table
Face activity is high, have the catalytic performance of excellence；Hydrogel material environmental protection as carrier；The present invention uses single step reaction system
For the hydrogel going out silver nanoparticles loaded catalyst.This silver nanoparticles loaded catalyst hydrogel is right in sodium borohydride degraded
The organic dyestuff experiments such as nitrophenol, methyl orange or methylene blue are swift in response and carry out, there is the catalysis activity of excellence, and
Liquid level is floated on, it is easy to remove, do not cause secondary pollution after having reacted；Through the catalysis that still keeps good is recycled for multiple times
Effect；The preparation process of this silver nanoparticles loaded hydrogel is few, method simple, is easy to storage and transport after drying, is conducive to
The actual application of industry.
Accompanying drawing explanation
Fig. 1 is that the transmission electron micrograph of silver nanoparticles loaded catalyst hydrogel prepared by the present invention is with corresponding
Silver nano-grain size distribution plot, length of the scale is 100nm；The transmitted electron of silver nano-grain during wherein Fig. 1 a is hydrogel
Microscope photograph, Fig. 1 b is silver nano-grain size distribution plot corresponding with transmission electron micrograph.
Fig. 2 is silver nanoparticles loaded catalyst hydrogel catalytic effect figure prepared by the present invention；Wherein Fig. 2 a is that this is received
The design sketch of rice composite aquogel catalysis sodium borohydride reduction paranitrophenol, Fig. 2 b is that this Nanometer composite hydrogel is catalyzed boron hydrogen
Changing the design sketch of sodium reduction methyl orange, Fig. 2 c is the effect of this Nanometer composite hydrogel catalysis sodium borohydride reduction methylene blue
Figure.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail.
Embodiment 1
The present embodiment is the preparation method of a kind of silver nanoparticles loaded catalyst hydrogel, comprises the steps:
Step 1: high polymer monomer, cross-linking agent, light trigger and monovalence silver ion salt are blended and dissolved in water, high score
Sub-monomer, cross-linking agent and light trigger are used for being formed hydrogel, and monovalence silver ion salt is used for being formed silver nano-grain, high after mixing
The mol ratio of molecule monomer, cross-linking agent, light trigger, monovalence silver ion salt and water is 1000:40:1:1:55600, macromolecule list
Body group is carboxylic acid group's salt, and cross-linking agent is N, N '-methylene-bisacrylamide, and light trigger is Ammonium persulfate., monovalence silver ion
Salt is silver nitrate；
Step 2: the solution of step 1 mix homogeneously is added in quartz molds and to be placed under 365nm ultraviolet light irradiation 6 little
Time, a step obtains silver nanoparticles loaded catalyst hydrogel；The free radical that light trigger provides under ultraviolet light irradiates makes height
Molecule monomer and cross-linking agent polymerization form hydrogel, and monovalence silver ion is divided by the electrostatic attraction even action of high polymer monomer group
Cloth, among hydrogel, is reduced to silver nano-grain, with transmission electron microscope observation silver therein under ultraviolet light irradiates
Nano-particle average-size is 2.5nm；The hydrogel being dried this silver nanoparticles loaded is easy to storage and transport.
Embodiment 2
The present embodiment is the preparation method of a kind of silver nanoparticles loaded catalyst hydrogel, comprises the steps:
Step 1: high polymer monomer, cross-linking agent, light trigger and monovalence silver ion salt are blended and dissolved in water, high score
Sub-monomer, cross-linking agent and light trigger are used for being formed hydrogel, and monovalence silver ion salt is used for being formed silver nano-grain, high after mixing
The mol ratio of molecule monomer, cross-linking agent, light trigger, monovalence silver ion salt and water is 1000:10:1:5:55600, macromolecule list
Body group is benzenesulfonic acid base, and cross-linking agent is N, N '-methylene-bisacrylamide, and light trigger is α-ketoglutaric acid, monovalence silver from
Alite is Disilver carbonate；
Step 2: the solution of step 1 mix homogeneously is added in quartz molds and is placed under 365nm ultraviolet light irradiation 13
Hour, a step obtains silver nanoparticles loaded catalyst hydrogel；The free radical that light trigger provides under ultraviolet light irradiates makes
High polymer monomer and cross-linking agent polymerization form hydrogel, and monovalence silver ion is by the electrostatic attraction even action of high polymer monomer group
It is distributed among hydrogel, under ultraviolet light irradiates, is reduced to silver nano-grain, therein with transmission electron microscope observation
Silver nano-grain average-size is 2nm；The hydrogel being dried this silver nanoparticles loaded is easy to storage and transport.
Embodiment 3
The present embodiment is the preparation method of a kind of silver nanoparticles loaded catalyst hydrogel, comprises the steps:
Step 1: high polymer monomer, cross-linking agent, light trigger and monovalence silver ion salt are blended and dissolved in water, high score
Sub-monomer, cross-linking agent and light trigger are used for being formed hydrogel, and monovalence silver ion salt is used for being formed silver nano-grain, high after mixing
The mol ratio of molecule monomer, cross-linking agent, light trigger, monovalence silver ion salt and water is 1000:200:2:50:55600, macromolecule
Monomeric groups is carboxylic acid group, and cross-linking agent is N, N '-methylene-bisacrylamide, and light trigger is Ammonium persulfate., monovalence silver ion
Salt is silver nitrate；
Step 2: the solution of step 1 mix homogeneously is added in quartz molds and to be placed under 365nm ultraviolet light irradiation 6 little
Time, a step obtains silver nanoparticles loaded catalyst hydrogel；The free radical that light trigger provides under ultraviolet light irradiates makes height
Molecule monomer and cross-linking agent polymerization form hydrogel, and monovalence silver ion is divided by the electrostatic attraction even action of high polymer monomer group
Cloth, among hydrogel, is reduced to silver nano-grain, with transmission electron microscope observation silver therein under ultraviolet light irradiates
Nano-particle average-size is 2.8nm；The hydrogel being dried this silver nanoparticles loaded is easy to storage and transport.
Embodiment 4
The present embodiment is the preparation method of a kind of silver nanoparticles loaded catalyst hydrogel, comprises the steps:
Step 1: high polymer monomer, cross-linking agent, light trigger and monovalence silver ion salt are blended and dissolved in water, high score
Sub-monomer, cross-linking agent and light trigger are used for being formed hydrogel, and monovalence silver ion salt is used for being formed silver nano-grain, high after mixing
The mol ratio of molecule monomer, cross-linking agent, light trigger, monovalence silver ion salt and water is 1000:120:2:10:55600, macromolecule
Monomeric groups is phosphate salt, and cross-linking agent is N, N '-methylene-bisacrylamide, and light trigger is α-ketoglutaric acid, monovalence silver
Ion salt is silver sulfate；
Step 2: the solution of step 1 mix homogeneously is added in quartz molds and to be placed under 365nm ultraviolet light irradiation 7 little
Time, a step obtains silver nanoparticles loaded catalyst hydrogel；The free radical that light trigger provides under ultraviolet light irradiates makes height
Molecule monomer and cross-linking agent polymerization form hydrogel, and monovalence silver ion is divided by the electrostatic attraction even action of high polymer monomer group
Cloth, among hydrogel, is reduced to silver nano-grain, with transmission electron microscope observation silver therein under ultraviolet light irradiates
Nano-particle average-size is 2.7nm；The hydrogel being dried this silver nanoparticles loaded is easy to storage and transport.
Embodiment 5
The present embodiment is the preparation method of a kind of silver nanoparticles loaded catalyst hydrogel, comprises the steps:
Step 1: high polymer monomer, cross-linking agent, light trigger and monovalence silver ion salt are blended and dissolved in water, high score
Sub-monomer, cross-linking agent and light trigger are used for being formed hydrogel, and monovalence silver ion salt is used for being formed silver nano-grain, high after mixing
The mol ratio of molecule monomer, cross-linking agent, light trigger, monovalence silver ion salt and water is 1000:50:3:3:55600, macromolecule list
Body group is sulfonic group, and cross-linking agent is N, N '-methylene-bisacrylamide, and light trigger is Ammonium persulfate., monovalence silver ion salt
For silver nitrate；
Step 2: the solution of step 1 mix homogeneously is added in quartz molds and to be placed under 365nm ultraviolet light irradiation 9 little
Time, a step obtains silver nanoparticles loaded catalyst hydrogel；The free radical that light trigger provides under ultraviolet light irradiates makes height
Molecule monomer and cross-linking agent polymerization form hydrogel, and monovalence silver ion is divided by the electrostatic attraction even action of high polymer monomer group
Cloth, among hydrogel, is reduced to silver nano-grain, with transmission electron microscope observation silver therein under ultraviolet light irradiates
Nano-particle average-size is 2.9nm；The hydrogel being dried this silver nanoparticles loaded is easy to storage and transport.
Embodiment 6
The present embodiment is the preparation method of a kind of silver nanoparticles loaded catalyst hydrogel, comprises the steps:
Step 1: high polymer monomer, cross-linking agent, light trigger and monovalence silver ion salt are blended and dissolved in water, high score
Sub-monomer, cross-linking agent and light trigger are used for being formed hydrogel, and monovalence silver ion salt is used for being formed silver nano-grain, high after mixing
The mol ratio of molecule monomer, cross-linking agent, light trigger, monovalence silver ion salt and water is 1000:150:3:7:55600, macromolecule
Monomeric groups is benzenesulfonic acid base salt, and cross-linking agent is N, N '-methylene-bisacrylamide, and light trigger is α-ketoglutaric acid, monovalence
Silver ion salt is Disilver carbonate；
Step 2: the solution of step 1 mix homogeneously is added in quartz molds and is placed under 365nm ultraviolet light irradiation 14
Hour, a step obtains silver nanoparticles loaded catalyst hydrogel；The free radical that light trigger provides under ultraviolet light irradiates makes
High polymer monomer and cross-linking agent polymerization form hydrogel, and monovalence silver ion is by the electrostatic attraction even action of high polymer monomer group
It is distributed among hydrogel, under ultraviolet light irradiates, is reduced to silver nano-grain, therein with transmission electron microscope observation
Silver nano-grain average-size is 2nm；The hydrogel being dried this silver nanoparticles loaded is easy to storage and transport.
Embodiment 7
The present embodiment is the preparation method of a kind of silver nanoparticles loaded catalyst hydrogel, comprises the steps:
Step 1: high polymer monomer, cross-linking agent, light trigger and monovalence silver ion salt are blended and dissolved in water, high score
Sub-monomer, cross-linking agent and light trigger are used for being formed hydrogel, and monovalence silver ion salt is used for being formed silver nano-grain, high after mixing
The mol ratio of molecule monomer, cross-linking agent, light trigger, monovalence silver ion salt and water is 1000:100:2:40:55600, macromolecule
Monomer is acrylamide, and cross-linking agent is N, N '-methylene-bisacrylamide, and light trigger is α-ketoglutaric acid, monovalence silver ion
Salt is silver nitrate；
Step 2: the solution of step 1 mix homogeneously is added in quartz molds and to be placed under 365nm ultraviolet light irradiation 8 little
Time, a step obtains silver nanoparticles loaded catalyst hydrogel；The free radical that light trigger provides under ultraviolet light irradiates makes height
Molecule monomer and cross-linking agent polymerization form hydrogel, and monovalence silver ion is divided by the electrostatic attraction even action of high polymer monomer group
Cloth, among hydrogel, is reduced to silver nano-grain, with transmission electron microscope observation silver therein under ultraviolet light irradiates
Nano-particle average-size is 3nm；The hydrogel being dried this silver nanoparticles loaded is easy to storage and transport.
Embodiment 8
The present embodiment is the preparation method of a kind of silver nanoparticles loaded catalyst hydrogel, comprises the steps:
Step 1: high polymer monomer, cross-linking agent, light trigger and monovalence silver ion salt are blended and dissolved in water, high score
Sub-monomer, cross-linking agent and light trigger are used for being formed hydrogel, and monovalence silver ion salt is used for being formed silver nano-grain, high after mixing
The mol ratio of molecule monomer, cross-linking agent, light trigger, monovalence silver ion salt and water is 1000:100:2:8:55600, macromolecule
Monomer is acrylic acid, and cross-linking agent is N, N '-methylene-bisacrylamide, and light trigger is α-ketoglutaric acid, monovalence silver ion salt
For silver nitrate；
Step 2: the solution of step 1 mix homogeneously is added in quartz molds and to be placed under 365nm ultraviolet light irradiation 8 little
Time, a step obtains silver nanoparticles loaded catalyst hydrogel；The free radical that light trigger provides under ultraviolet light irradiates makes height
Molecule monomer and cross-linking agent polymerization form hydrogel, and monovalence silver ion is divided by the electrostatic attraction even action of high polymer monomer group
Cloth, among hydrogel, is reduced to silver nano-grain, with transmission electron microscope observation silver therein under ultraviolet light irradiates
Nano-particle average-size is 2.1nm；The hydrogel being dried this silver nanoparticles loaded is easy to storage and transport.
Embodiment 9
The present embodiment is the preparation method of a kind of silver nanoparticles loaded catalyst hydrogel, comprises the steps:
Step 1: high polymer monomer, cross-linking agent, light trigger and monovalence silver ion salt are blended and dissolved in water, high score
Sub-monomer, cross-linking agent and light trigger are used for being formed hydrogel, and monovalence silver ion salt is used for being formed silver nano-grain, high after mixing
The mol ratio of molecule monomer, cross-linking agent, light trigger, monovalence silver ion salt and water is 1000:170:3:25:55600, macromolecule
Monomer is methacrylic acid, and cross-linking agent is N, N '-methylene-bisacrylamide, and light trigger is α-ketoglutaric acid, monovalence silver from
Alite is silver nitrate；
Step 2: the solution of step 1 mix homogeneously is added in quartz molds and is placed under 365nm ultraviolet light irradiation 10
Hour, a step obtains silver nanoparticles loaded catalyst hydrogel；The free radical that light trigger provides under ultraviolet light irradiates makes
High polymer monomer and cross-linking agent polymerization form hydrogel, and monovalence silver ion is by the electrostatic attraction even action of high polymer monomer group
It is distributed among hydrogel, under ultraviolet light irradiates, is reduced to silver nano-grain, therein with transmission electron microscope observation
Silver nano-grain average-size is 2.4nm；The hydrogel being dried this silver nanoparticles loaded is easy to storage and transport.
Embodiment 10
The present embodiment is the preparation method of a kind of silver nanoparticles loaded catalyst hydrogel, comprises the steps:
Step 1: high polymer monomer, cross-linking agent, light trigger and monovalence silver ion salt are blended and dissolved in water, high score
Sub-monomer, cross-linking agent and light trigger are used for being formed hydrogel, and monovalence silver ion salt is used for being formed silver nano-grain, high after mixing
The mol ratio of molecule monomer, cross-linking agent, light trigger, monovalence silver ion salt and water is 1000:100:3:15:55600, macromolecule
Monomer is acrylic acid, and cross-linking agent is N, N '-methylene-bisacrylamide, and light trigger is α-ketoglutaric acid, monovalence silver ion salt
For silver nitrate；
Step 2: the solution of step 1 mix homogeneously is added in quartz molds and is placed under 365nm ultraviolet light irradiation 10
Hour, a step obtains silver nanoparticles loaded catalyst hydrogel；The free radical that light trigger provides under ultraviolet light irradiates makes
High polymer monomer and cross-linking agent polymerization form hydrogel, and monovalence silver ion is by the electrostatic attraction even action of high polymer monomer group
It is distributed among hydrogel, under ultraviolet light irradiates, is reduced to silver nano-grain, therein with transmission electron microscope observation
Silver nano-grain average-size is 2.4nm；The hydrogel being dried this silver nanoparticles loaded is easy to storage and transport.
The transmission electron microscope of the silver nanoparticles loaded catalyst hydrogel of embodiment 8 preparation characterizes and corresponding chi
As illustrated in figs. ia and ib, the effect of catalysis sodium borohydride reduction paranitrophenol, methyl orange and methylene blue is as schemed in very little distribution
Shown in 2a, Fig. 2 b and Fig. 2 c, can be seen that the silver nano-grain being carried on hydrogel is evenly distributed from Fig. 1 a, permissible from Fig. 1 b
Find out from Fig. 2 a, the silver nanoparticle Argent grain average-size being carried in hydrogel, between 2-3nm, can be seen that this is nano combined
The reaction of hydrogel catalysis sodium borohydride reduction paranitrophenol was quickly completed in 4 minutes, and catalytic performance is excellent, can from Fig. 2 b
To find out that this Nanometer composite hydrogel has the superperformance of catalysis sodium borohydride reduction methyl orange, can be seen that this is received from Fig. 2 c
Rice composite aquogel has the superperformance of catalysis sodium borohydride reduction methylene blue, and this Nanometer composite hydrogel is to multiple organic
Dyestuff has good catalytic performance.
Claims (10)
1. the preparation method of a silver nanoparticles loaded catalyst hydrogel, it is characterised in that: comprise the steps:
Step 1: high polymer monomer, cross-linking agent, light trigger and monovalence silver ion salt are blended and dissolved in water, macromolecule list
Body, cross-linking agent and light trigger are used for being formed hydrogel, and monovalence silver ion salt is used for being formed silver nano-grain, macromolecule after mixing
The mol ratio of monomer, cross-linking agent, light trigger, monovalence silver ion salt and water is 1000:(10-200): (1-3): (1-50):
55600；Wherein the group of high polymer monomer is carboxylic acid group, carboxylic acid group's salt, sulfonic group, sulfonic group salt, benzenesulfonic acid base, benzenesulfonic acid base
Salt, phosphate or phosphate salt, cross-linking agent is N, N '-methylene-bisacrylamide, and light trigger is Ammonium persulfate. or α-one penta
Diacid, monovalence silver ion salt is silver nitrate, Disilver carbonate or silver sulfate；
Step 2: the solution of step 1 mix homogeneously is added in quartz molds and placement irradiation more than 6 hours under ultraviolet light, one
Step obtains silver nanoparticles loaded catalyst hydrogel；The free radical that light trigger provides under ultraviolet light irradiates makes macromolecule list
Body and cross-linking agent polymerization form hydrogel, and monovalence silver ion is divided by the electrostatic attraction even action of the group of high polymer monomer simultaneously
Cloth, among hydrogel, is reduced to silver nano-grain under ultraviolet light irradiates；It is dried the hydrogel of this silver nanoparticles loaded
It is easy to storage and transport.
The preparation method of a kind of silver nanoparticles loaded catalyst hydrogel the most according to claim 1, it is characterised in that:
Comprise the steps:
Step 1: high polymer monomer, cross-linking agent, light trigger and monovalence silver ion salt are blended and dissolved in water, macromolecule list
Body, cross-linking agent and light trigger are used for being formed hydrogel, and monovalence silver ion salt is used for being formed silver nano-grain, macromolecule after mixing
The mol ratio of monomer, cross-linking agent, light trigger, monovalence silver ion salt and water is 1000:40:1:1:55600, high polymer monomer base
Group is carboxylic acid group's salt, and cross-linking agent is N, N '-methylene-bisacrylamide, and light trigger is Ammonium persulfate., and monovalence silver ion salt is
Silver nitrate；
Step 2: the solution of step 1 mix homogeneously is added in quartz molds and is placed under 365nm ultraviolet light irradiation 6 hours,
One step obtains silver nanoparticles loaded catalyst hydrogel；The free radical that light trigger provides under ultraviolet light irradiates makes macromolecule
Monomer and cross-linking agent polymerization form hydrogel, and monovalence silver ion is distributed by the electrostatic attraction even action of the group of high polymer monomer
Among hydrogel, under ultraviolet light irradiates, it is reduced to silver nano-grain, receives with transmission electron microscope observation silver therein
Rice grain average-size is 2.5nm；The hydrogel being dried this silver nanoparticles loaded is easy to storage and transport.
The preparation method of a kind of silver nanoparticles loaded catalyst hydrogel the most according to claim 1, it is characterised in that:
Comprise the steps:
Step 1: high polymer monomer, cross-linking agent, light trigger and monovalence silver ion salt are blended and dissolved in water, macromolecule list
Body, cross-linking agent and light trigger are used for being formed hydrogel, and monovalence silver ion salt is used for being formed silver nano-grain, macromolecule after mixing
The mol ratio of monomer, cross-linking agent, light trigger, monovalence silver ion salt and water is 1000:10:1:5:55600, high polymer monomer base
Group is benzenesulfonic acid base, and cross-linking agent is N, N '-methylene-bisacrylamide, and light trigger is α-ketoglutaric acid, monovalence silver ion salt
For Disilver carbonate；
Step 2: the solution of step 1 mix homogeneously is added in quartz molds and is placed under 365nm ultraviolet light irradiation 13 hours,
One step obtains silver nanoparticles loaded catalyst hydrogel；The free radical that light trigger provides under ultraviolet light irradiates makes macromolecule
Monomer and cross-linking agent polymerization form hydrogel, and monovalence silver ion is distributed by the electrostatic attraction even action of the group of high polymer monomer
Among hydrogel, under ultraviolet light irradiates, it is reduced to silver nano-grain, receives with transmission electron microscope observation silver therein
Rice grain average-size is 2nm；The hydrogel being dried this silver nanoparticles loaded is easy to storage and transport.
The preparation method of a kind of silver nanoparticles loaded catalyst hydrogel the most according to claim 1, it is characterised in that:
Comprise the steps:
Step 1: high polymer monomer, cross-linking agent, light trigger and monovalence silver ion salt are blended and dissolved in water, macromolecule list
Body, cross-linking agent and light trigger are used for being formed hydrogel, and monovalence silver ion salt is used for being formed silver nano-grain, macromolecule after mixing
The mol ratio of monomer, cross-linking agent, light trigger, monovalence silver ion salt and water is 1000:200:2:50:55600, high polymer monomer
Group is carboxylic acid group, and cross-linking agent is N, N '-methylene-bisacrylamide, and light trigger is Ammonium persulfate., and monovalence silver ion salt is
Silver nitrate；
Step 2: the solution of step 1 mix homogeneously is added in quartz molds and is placed under 365nm ultraviolet light irradiation 6 hours,
One step obtains silver nanoparticles loaded catalyst hydrogel；The free radical that light trigger provides under ultraviolet light irradiates makes macromolecule
Monomer and cross-linking agent polymerization form hydrogel, and monovalence silver ion is distributed by the electrostatic attraction even action of the group of high polymer monomer
Among hydrogel, under ultraviolet light irradiates, it is reduced to silver nano-grain, receives with transmission electron microscope observation silver therein
Rice grain average-size is 2.8nm；The hydrogel being dried this silver nanoparticles loaded is easy to storage and transport.
The preparation method of a kind of silver nanoparticles loaded catalyst hydrogel the most according to claim 1, it is characterised in that:
Comprise the steps:
Step 1: high polymer monomer, cross-linking agent, light trigger and monovalence silver ion salt are blended and dissolved in water, macromolecule list
Body, cross-linking agent and light trigger are used for being formed hydrogel, and monovalence silver ion salt is used for being formed silver nano-grain, macromolecule after mixing
The mol ratio of monomer, cross-linking agent, light trigger, monovalence silver ion salt and water is 1000:120:2:10:55600, high polymer monomer
Group is phosphate salt, and cross-linking agent is N, N '-methylene-bisacrylamide, and light trigger is α-ketoglutaric acid, monovalence silver ion
Salt is silver sulfate；
Step 2: the solution of step 1 mix homogeneously is added in quartz molds and is placed under 365nm ultraviolet light irradiation 7 hours,
One step obtains silver nanoparticles loaded catalyst hydrogel；The free radical that light trigger provides under ultraviolet light irradiates makes macromolecule
Monomer and cross-linking agent polymerization form hydrogel, and monovalence silver ion is distributed by the electrostatic attraction even action of the group of high polymer monomer
Among hydrogel, under ultraviolet light irradiates, it is reduced to silver nano-grain, receives with transmission electron microscope observation silver therein
Rice grain average-size is 2.7nm；The hydrogel being dried this silver nanoparticles loaded is easy to storage and transport.
The preparation method of a kind of silver nanoparticles loaded catalyst hydrogel the most according to claim 1, it is characterised in that:
Comprise the steps:
Step 1: high polymer monomer, cross-linking agent, light trigger and monovalence silver ion salt are blended and dissolved in water, macromolecule list
Body, cross-linking agent and light trigger are used for being formed hydrogel, and monovalence silver ion salt is used for being formed silver nano-grain, macromolecule after mixing
The mol ratio of monomer, cross-linking agent, light trigger, monovalence silver ion salt and water is 1000:50:3:3:55600, high polymer monomer base
Group is sulfonic group, and cross-linking agent is N, N '-methylene-bisacrylamide, and light trigger is Ammonium persulfate., and monovalence silver ion salt is nitre
Acid silver；
Step 2: the solution of step 1 mix homogeneously is added in quartz molds and is placed under 365nm ultraviolet light irradiation 9 hours,
One step obtains silver nanoparticles loaded catalyst hydrogel；The free radical that light trigger provides under ultraviolet light irradiates makes macromolecule
Monomer and cross-linking agent polymerization form hydrogel, and monovalence silver ion is distributed by the electrostatic attraction even action of the group of high polymer monomer
Among hydrogel, under ultraviolet light irradiates, it is reduced to silver nano-grain, receives with transmission electron microscope observation silver therein
Rice grain average-size is 2.9nm；The hydrogel being dried this silver nanoparticles loaded is easy to storage and transport.
The preparation method of a kind of silver nanoparticles loaded catalyst hydrogel the most according to claim 1, it is characterised in that:
Comprise the steps:
Step 1: high polymer monomer, cross-linking agent, light trigger and monovalence silver ion salt are blended and dissolved in water, macromolecule list
Body, cross-linking agent and light trigger are used for being formed hydrogel, and monovalence silver ion salt is used for being formed silver nano-grain, macromolecule after mixing
The mol ratio of monomer, cross-linking agent, light trigger, monovalence silver ion salt and water is 1000:150:3:7:55600, high polymer monomer
Group is benzenesulfonic acid base salt, and cross-linking agent is N, N '-methylene-bisacrylamide, and light trigger is α-ketoglutaric acid, monovalence silver from
Alite is Disilver carbonate；
Step 2: the solution of step 1 mix homogeneously is added in quartz molds and is placed under 365nm ultraviolet light irradiation 14 hours,
One step obtains silver nanoparticles loaded catalyst hydrogel；The free radical that light trigger provides under ultraviolet light irradiates makes macromolecule
Monomer and cross-linking agent polymerization form hydrogel, and monovalence silver ion is distributed by the electrostatic attraction even action of the group of high polymer monomer
Among hydrogel, under ultraviolet light irradiates, it is reduced to silver nano-grain, receives with transmission electron microscope observation silver therein
Rice grain average-size is 2nm；The hydrogel being dried this silver nanoparticles loaded is easy to storage and transport.
The preparation method of a kind of silver nanoparticles loaded catalyst hydrogel the most according to claim 1, it is characterised in that:
Comprise the steps:
Step 1: high polymer monomer, cross-linking agent, light trigger and monovalence silver ion salt are blended and dissolved in water, macromolecule list
Body, cross-linking agent and light trigger are used for being formed hydrogel, and monovalence silver ion salt is used for being formed silver nano-grain, macromolecule after mixing
The mol ratio of monomer, cross-linking agent, light trigger, monovalence silver ion salt and water is 1000:100:2:40:55600, high polymer monomer
For acrylamide, cross-linking agent is N, N '-methylene-bisacrylamide, and light trigger is α-ketoglutaric acid, and monovalence silver ion salt is
Silver nitrate；
Step 2: the solution of step 1 mix homogeneously is added in quartz molds and is placed under 365nm ultraviolet light irradiation 8 hours,
One step obtains silver nanoparticles loaded catalyst hydrogel；The free radical that light trigger provides under ultraviolet light irradiates makes macromolecule
Monomer and cross-linking agent polymerization form hydrogel, and monovalence silver ion is distributed by the electrostatic attraction even action of the group of high polymer monomer
Among hydrogel, under ultraviolet light irradiates, it is reduced to silver nano-grain, receives with transmission electron microscope observation silver therein
Rice grain average-size is 3nm；The hydrogel being dried this silver nanoparticles loaded is easy to storage and transport.
The preparation method of a kind of silver nanoparticles loaded catalyst hydrogel the most according to claim 1, it is characterised in that:
Comprise the steps:
Step 1: high polymer monomer, cross-linking agent, light trigger and monovalence silver ion salt are blended and dissolved in water, macromolecule list
Body, cross-linking agent and light trigger are used for being formed hydrogel, and monovalence silver ion salt is used for being formed silver nano-grain, macromolecule after mixing
The mol ratio of monomer, cross-linking agent, light trigger, monovalence silver ion salt and water is 1000:100:2:8:55600, high polymer monomer
For acrylic acid, cross-linking agent is N, N '-methylene-bisacrylamide, and light trigger is α-ketoglutaric acid, and monovalence silver ion salt is nitre
Acid silver；
Step 2: the solution of step 1 mix homogeneously is added in quartz molds and is placed under 365nm ultraviolet light irradiation 8 hours,
One step obtains silver nanoparticles loaded catalyst hydrogel；The free radical that light trigger provides under ultraviolet light irradiates makes macromolecule
Monomer and cross-linking agent polymerization form hydrogel, and monovalence silver ion is distributed by the electrostatic attraction even action of the group of high polymer monomer
Among hydrogel, under ultraviolet light irradiates, it is reduced to silver nano-grain, receives with transmission electron microscope observation silver therein
Rice grain average-size is 2.1nm；The hydrogel being dried this silver nanoparticles loaded is easy to storage and transport.
The preparation method of a kind of silver nanoparticles loaded catalyst hydrogel the most according to claim 1, its feature exists
In: comprise the steps:
Step 1: high polymer monomer, cross-linking agent, light trigger and monovalence silver ion salt are blended and dissolved in water, macromolecule list
Body, cross-linking agent and light trigger are used for being formed hydrogel, and monovalence silver ion salt is used for being formed silver nano-grain, macromolecule after mixing
The mol ratio of monomer, cross-linking agent, light trigger, monovalence silver ion salt and water is 1000:100:3:15:55600, high polymer monomer
For acrylic acid, cross-linking agent is N, N '-methylene-bisacrylamide, and light trigger is α-ketoglutaric acid, and monovalence silver ion salt is nitre
Acid silver；
Step 2: the solution of step 1 mix homogeneously is added in quartz molds and is placed under 365nm ultraviolet light irradiation 10 hours,
One step obtains silver nanoparticles loaded catalyst hydrogel；The free radical that light trigger provides under ultraviolet light irradiates makes macromolecule
Monomer and cross-linking agent polymerization form hydrogel, and monovalence silver ion is distributed in by the electrostatic attraction even action of high polymer monomer group
Among hydrogel, under ultraviolet light irradiates, it is reduced to silver nano-grain, by transmission electron microscope observation silver nanoparticle therein
Particle mean size is 2.4nm；The hydrogel being dried this silver nanoparticles loaded is easy to storage and transport.
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| CN112111071A (en) * | 2019-06-21 | 2020-12-22 | 清华大学 | Sensor, method for producing the same, and method for using the sensor |
| CN112126108A (en) * | 2020-08-15 | 2020-12-25 | 天津科技大学 | Preparation of high-strength and high-adsorption-property nano-cellulose aerogel material |
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| CN112113690A (en) * | 2019-06-21 | 2020-12-22 | 清华大学 | Hydrogel composite and preparation method thereof |
| CN112111071A (en) * | 2019-06-21 | 2020-12-22 | 清华大学 | Sensor, method for producing the same, and method for using the sensor |
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| CN112126108A (en) * | 2020-08-15 | 2020-12-25 | 天津科技大学 | Preparation of high-strength and high-adsorption-property nano-cellulose aerogel material |
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