CN107497491A - A kind of preparation method of composite Nano catalysis material - Google Patents
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- 239000000463 material Substances 0.000 title claims abstract description 37
- 238000006555 catalytic reaction Methods 0.000 title claims abstract description 23
- 239000002131 composite material Substances 0.000 title claims abstract description 14
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 229920000767 polyaniline Polymers 0.000 claims abstract description 16
- 239000000843 powder Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 10
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 claims description 8
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 7
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 6
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 6
- 239000000047 product Substances 0.000 claims description 6
- 239000013049 sediment Substances 0.000 claims description 6
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 5
- 238000003760 magnetic stirring Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 239000003960 organic solvent Substances 0.000 claims description 4
- 239000007795 chemical reaction product Substances 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 235000011164 potassium chloride Nutrition 0.000 claims description 3
- 239000001103 potassium chloride Substances 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 3
- PPNKDDZCLDMRHS-UHFFFAOYSA-N dinitrooxybismuthanyl nitrate Chemical class [Bi+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O PPNKDDZCLDMRHS-UHFFFAOYSA-N 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- 230000001699 photocatalysis Effects 0.000 abstract description 17
- 238000007146 photocatalysis Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 5
- 239000011941 photocatalyst Substances 0.000 abstract description 4
- 239000002114 nanocomposite Substances 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 238000000053 physical method Methods 0.000 abstract description 2
- 230000004043 responsiveness Effects 0.000 abstract description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 16
- BWOROQSFKKODDR-UHFFFAOYSA-N oxobismuth;hydrochloride Chemical compound Cl.[Bi]=O BWOROQSFKKODDR-UHFFFAOYSA-N 0.000 description 10
- 239000004065 semiconductor Substances 0.000 description 8
- 229910052797 bismuth Inorganic materials 0.000 description 7
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 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 description 6
- 229940012189 methyl orange Drugs 0.000 description 6
- 235000019441 ethanol Nutrition 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 229910052755 nonmetal Inorganic materials 0.000 description 3
- OUUQCZGPVNCOIJ-UHFFFAOYSA-M Superoxide Chemical compound [O-][O] OUUQCZGPVNCOIJ-UHFFFAOYSA-M 0.000 description 2
- 150000001621 bismuth Chemical class 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007646 directional migration Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- RXPAJWPEYBDXOG-UHFFFAOYSA-N hydron;methyl 4-methoxypyridine-2-carboxylate;chloride Chemical compound Cl.COC(=O)C1=CC(OC)=CC=N1 RXPAJWPEYBDXOG-UHFFFAOYSA-N 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- AHUBLGVDRKDHAT-UHFFFAOYSA-N [Bi]=O.[Cl] Chemical compound [Bi]=O.[Cl] AHUBLGVDRKDHAT-UHFFFAOYSA-N 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229940073609 bismuth oxychloride Drugs 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000002153 concerted effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000004770 highest occupied molecular orbital Methods 0.000 description 1
- 238000009396 hybridization Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- -1 hydroxyl free radical Chemical class 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000004768 lowest unoccupied molecular orbital Methods 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000002159 nanocrystal Substances 0.000 description 1
- 239000002135 nanosheet Substances 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 1
- 238000006303 photolysis reaction Methods 0.000 description 1
- 230000015843 photosynthesis, light reaction Effects 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 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
- B01J31/26—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
-
- B01J35/39—
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
Abstract
The invention belongs to catalysis material and its preparing technical field, and in particular to a kind of preparation method of composite Nano catalysis material.The present invention obtained Nano-composite photocatalyst material after topographic design and physical method doping vario-property has outstanding vis-absorbing, compared to material made from former Polyaniline Doped, 20% or so is lifted to the responsiveness of visible ray, photocatalysis effect, which has, significantly to be improved.
Description
Technical field
The invention belongs to catalysis material and its preparing technical field, and in particular to a kind of composite Nano catalysis material
Preparation method.
Background technology
From Fujishima in 1972 and Honda (Fujishima A, Honda K.Electrochemical
Photolysis of Water at a Semiconductor Electrode [J] .Nature, 1972,238,37) find to receive
Since rice titanium dioxide can decompose hydrone under ultraviolet light, catalysis material has obtained extensive concern and substantial amounts of research,
New path is provided for energy-conserving and environment-protective.
Conductor photocatalysis process is more complicated, mainly includes (S.Bai, et：al.Steering charge
kinetics in photocatalysis:intersection of materials syntheses,
characterization techniques and theoretical simulations Chem.Soc.Rev.2015,44:
2893.J.Yang,et al.Roles of Cocatalysts in Photocatalysis and
Photoelectrocatalysis,Acc.Chem.Res.,2013,46:1900-1909)：1) semiconductor is under photostimulation
Produce photo-generated carrier：Energy is more than the light irradiation of energy gap energy on the semiconductor, and the electronics in valence band will absorb light
Son simultaneously transits to conduction band, and so as to form hole in valence band, the carrier of high activity is produced inside semiconductor.2) carrier
Migration in semiconductor：Light induced electron and photohole will free diffusing or directional migration to semiconductor surface, moving
There is part electronics during shifting and hole can occur compound, lost in a manner of light or heat.3) carrier is sent out in semiconductor surface
Raw redox reaction：Photohole has very strong oxidisability, can directly participate in oxidation reaction or exist with absorption
The hydroxide ion on surface forms hydroxyl free radical and carrys out oxidative degradation organic matter, moves to the light induced electron on surface with very strong
Reproducibility, superoxide radical isoreactivity group is easily combined into the oxygen in solution, water can also be reduced directly and produce hydrogen
Gas.As can be seen here, the essence for improving catalysis material performance is light induced electron and photoproduction during light-catalyzed reaction to be increased
The generation in hole, and effectively prevent both compound.
Bismuth system catalysis material is improved the position of its valence band, prohibited so as to reduce due to Bi6s and O2p orbital hybridization
Bandwidth, and then cause bismuth series photocatalyst that there is obvious absorption in visible-range, there is good photocatalysis performance.
Although bismuth series photocatalyst visible region photocatalytic activity than traditional TiO2It is significantly improved, but its quantum efficiency is not
The problems such as height, photo-generate electron-hole easily combine, and the absorption to visible ray is limited, it is set to be still suffered from from practical application larger
Distance.Therefore, it is by controlling pattern, noble metal loading, metal ion mixing, nonmetal doping, semiconductors coupling the methods of, excellent
Change the photocatalysis performance of bismuth system catalysis material system, wherein nonmetal doping by chemical method doping, by its it is nontoxic, low into
Originally the advantage, easily prepared turns into the study hotspot of current field of photocatalytic material.
For pattern control optimization, due to the anisotropy of bismuth system catalysis material crystal, different main exposures can
To provide different surface-actives, and also there is the strong and weak remaining dipole moment to differ on each different directions, difference can be formed
The built in field of intensity is used for the generation and transfer of photohole and light induced electron.Therefore, the surface shape of bismuth system catalysis material
Looks control can be by promoting the directional migration of light induced electron to improve photocatalysis performance.However, the built in field of varying strength will
Cause aggregation of the electronics in main exposure, weaken nanocrystal interior magnetic field and different interplanar potential differences, so as to unfavorable
In the separation of electron-hole.In addition, bismuth system catalysis material also does not control to obtain to vis-absorbing difference by pattern
Improve.Therefore, also it is not enough to realize using pattern control merely and bismuth system catalysis material system photocatalysis performance is substantially improved,
This strongly limits the further development and application of bismuth system catalysis material system.
The content of the invention
Problem or deficiency be present for above-mentioned, to improve the photocatalysis performance of nonmetal doping, the invention provides one kind
The preparation method of composite Nano catalysis material.
It is concretely comprised the following steps：
Step 1：Raw material is weighed by quality accounting, 85-88% bismuth nitrates, 12-15% potassium chloride, is completely dissolved in deionized water
In；
Step 2：By the solution that step 1 is prepared in 120~200 DEG C of hydro-thermal reaction 10-30h；
Step 3：With the hydro-thermal reaction products therefrom of organic solvent rinsing step 2, then centrifuged；
Step 4：Step 3 is centrifuged into gained sediment to be cleaned with organic solvent, then dries, obtains in 40-100 DEG C of temperature
BiOCl- (110) catalysis material；
Step 5：Aniline (ANI) solution is stirred under 0~8 DEG C of environment, and is often dripped with 2~3s during stirring
Speed ammonium persulfate solution is added dropwise dropwise, at least 2h is stirred for after dropwise addition, gained suspension is then filtered into drying, then ground
Into powder, that is, obtain polyaniline；Aniline：The mass ratio of ammonium persulfate is 2:5-3:7.
Step 6：BiOCl- (110) powder and polyaniline are completely dissolved in tetrahydrofuran；Wherein BiOCl- (110) powder
Last quality accounting 90-99%, polyaniline accounting 1-10%；
Step 7：Step 6 products therefrom is positioned over 15~30h of stirring on magnetic stirring apparatus, then carried out by centrifuge
Separation of solid and liquid；
Step 8：After step 7 products therefrom is cleaned with organic solution, simultaneously grind into powder is dried, that is, BiOCl- is made
(110)/polyaniline composite catalyzing material powder.
Because chlorine oxygen bismuth (BiOCl) can not excite under visible light, and polyaniline visible light absorbing, make electronics from highest
Occupied molecular orbital is moved to lowest unoccupied molecular orbital (H.Zhang.Dramatic visible photocatalytic
degradation performances due to synergetic effect of TiO2with PANI[J],
Environmental Science and Technology 42(2008)3803–3807.).Further, BiOCl conduction band
The conjugated bonds of bottom and polyaniline matching on energy level is good, causes concerted reaction so that the electronics of excitation state is easy to note
Enter BiOCl conduction band bottom and be transferred to surface and produce hydroxy radical and superoxide radical with water reaction, improve BiOCl visible
Photocatalysis performance (MeiliG, ChongX.Vacancy Associates Promoting Solar-Driven under light
Photocatalytic Activity of Ultrathin Bismuth Oxychloride.Nanosheets[J]
.J.Am.Chem.Soc,2013,135,10411-10417).Therefore the present invention using hydrothermal synthesis method and ultrasonic resonance and
On BiOCl- (110), nanometer BiOCl/PAIN catalysis materials are made, and will prepare in PAIN uniform loads by physical mixed
Obtained composite catalyzing material is used for methyl orange (MO) of degrading under visible light.
The present invention obtained Nano-composite photocatalyst material after topographic design and physical method doping vario-property has
Outstanding is vis-absorbing, and compared to material made from former Polyaniline Doped, 20% or so is lifted to the responsiveness of visible ray,
Photocatalysis effect, which has, significantly to be improved.
Brief description of the drawings
Fig. 1 is embodiment 1BiOCl- (110) and BiOCl- (110)/PAIN XRD；
Fig. 2 is embodiment 1BiOCl- (110) and BiOCl- (110)/PAIN photocatalytic activity figure；
Fig. 3 is embodiment 2BiOCl- (102) and BiOCl- (102)/PAIN XRD；
Fig. 4 is embodiment 2BiOCl- (102) and BiOCl- (102)/PAIN photocatalytic activity figure.
Embodiment
The present invention is described further below by embodiment and accompanying drawing.
Embodiment 1
The specific preparation process of BiOCl- (110)/PAIN nano composite materials is as follows：
Step 1：Bismuth nitrate 0.8085g, potassium chloride 0.1243g, deionized water 25ml are weighed, is put into hydrothermal reaction kettle, and
In stirring 0.5h on magnetic stirring apparatus；
Step 2：Hydrothermal reaction kettle is positioned in the baking oven that temperature setting is 160 DEG C, reacts 24h；
Step 3：Hydro-thermal reaction products therefrom is flushed in beaker with absolute ethyl alcohol, and transfers them in centrifuge tube
Row 10000 turns/min of centrifugation, centrifuges 5min；
Step 4：Centrifugation gained sediment is washed 3 times with ethanol solution, and is put into temperature to be dried in 60 DEG C of baking ovens, is obtained
BiOCl- (110) catalysis material；
Step 5：Take ANI2.328g to be dissolved in 100ml deionized waters, be positioned under 3 DEG C of environment and be stirred, and in stirring
During ammonium persulfate solution (3s often drips) is added dropwise dropwise, 3h is stirred for after dropwise addition, suspension is then filtered into drying, and grind
Clay into power；Ammonium sulfate is dissolved in 50ml deionized waters for 5.705g and matched somebody with somebody；
Step 6：Weigh BiOCl powder 500mg and polyaniline 25mg is dissolved in tetrahydrofuran 50ml, be placed in ultrasonic wave cleaning
Ultrasonic vibration 2h in instrument；
Step 7：Step 6 products therefrom is positioned on magnetic stirring apparatus and stirs 24h, solid-liquid is then carried out by centrifuge
Separation；
Step 8：After step 7 products therefrom is cleaned into 3 times with ethanol；Dry and pulverize, that is, obtain BiOCl-
(110)/polyaniline composite catalyzing material powder.
Comparative example 2
Step 1：The K30 (a kind of model of polyvinylpyrrolidone) of the bismuth nitrate and 0.400g that weigh 0.486g is put into burning
Cup, and add 25ml ethanol；
Step 2：Water heating kettle is placed on magnetic stirring apparatus and stirred, and speed is dripped with 3s mono- simultaneously 10ml saturated common salts is added dropwise
Water；
Step 3：Water heating kettle is put into 160 DEG C of baking oven, continuous heating 3 hours；
Step 4：Take out water heating kettle, and with ethanol flushes sediment into beaker, 2 hours of ultrasonic vibration；
Step 5：By centrifuge, sediment is isolated, is cleaned after separation with ethanol, is repeated 3 times；
Step 6：After step 5 gained sediment is dried, grind into powder in mortar is put into.
Again with identical method in embodiment 1 carry out PANI preparation and PAIN it is compound.
The main diffraction peak of the BiOCl- (110) that embodiment 1 is prepared/PAIN composite catalyzing materials is respectively
12.85 °, 26.0 °, 32.7 °, these diffraction maximums just correspond to BiOCl (001), (101), the exposure of (110) respectively, and
Wherein 32.7 ° of diffraction peak intensity highest, it is main exposure (110), as shown in Figure 1.
The main diffraction peak of the BiOCl- (102) that embodiment 2 is prepared/PAIN composite catalyzing materials is respectively
12.20 °, 26.02 °, 32.68 ° and 33.60 °, these diffraction maximums just correspond to respectively BiOCl (001), (101), (110) and
(102) exposure, and wherein 33.60 ° of diffraction peak intensity highest, it is main exposure (102), as shown in Figure 3.
Degraded compared to single BiOCl- (110) catalysis material applied to MO, the BiOCl- that the present embodiment 1 is prepared
(110)/PAIN composite catalyzings material is under the irradiation of visible ray, and can effectively degrade MO, under visible light the degraded effect to MO
Fruit will be higher by close to 40% than common BiOCl- (110), and has good stability (Fig. 2).On the other hand, in Fig. 4
Under the irradiation of visible ray, also can effectively degrade BiOCl- (102)/PAIN composite catalyzings material MO, but right under visible light
MO degradation effect is lower all the better than common BiOCl- (102).Illustrate it is not that each type of BiOCl can answer with PAIN
Close and improve its photocatalysis performance.
Claims (1)
1. a kind of preparation method of composite Nano catalysis material, it is concretely comprised the following steps：
Step 1：Raw material is weighed by quality accounting, 85-88% bismuth nitrates, 12-15% potassium chloride, is completely dissolved in deionized water；
Step 2：By the solution that step 1 is prepared in 120~200 DEG C of hydro-thermal reaction 10-30h；
Step 3：With the hydro-thermal reaction products therefrom of organic solvent rinsing step 2, then centrifuged；
Step 4：Step 3 is centrifuged into gained sediment to be cleaned with organic solvent, then dries, obtains in 40-100 DEG C of temperature
BiOCl- (110) catalysis material；
Step 5：Aniline (ANI) solution is stirred under 0~8 DEG C of environment, and the speed often dripped with 2~3s during stirring
Ammonium persulfate solution is added dropwise in degree dropwise, and at least 2h is stirred for after dropwise addition, gained suspension then is filtered into drying, then pulverize
End, that is, obtain polyaniline；Aniline：The mass ratio of ammonium persulfate is 2:5-3:7；
Step 6：BiOCl- (110) powder and polyaniline are completely dissolved in tetrahydrofuran；Wherein BiOCl- (110) powder matter
Measure accounting 90-99%, polyaniline accounting 1-10%；
Step 7：Step 6 products therefrom is positioned over 15~30h of stirring on magnetic stirring apparatus, solid-liquid is then carried out by centrifuge
Separation；
Step 8：After step 7 products therefrom is cleaned with organic solution, dry simultaneously grind into powder, i.e., obtained BiOCl- (110)/
Polyaniline composite catalyzing material powder.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108043429A (en) * | 2018-01-15 | 2018-05-18 | 陕西科技大学 | A kind of preparation method of composite nano Tb/BiOCl materials |
| CN110560174A (en) * | 2019-08-16 | 2019-12-13 | 南京理工大学 | BiOI/C/PANI heterojunction material and preparation method thereof |
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