CN106268760A - A kind of method preparing pucherite base composite photocatalyst - Google Patents
A kind of method preparing pucherite base composite photocatalyst Download PDFInfo
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- CN106268760A CN106268760A CN201610655053.6A CN201610655053A CN106268760A CN 106268760 A CN106268760 A CN 106268760A CN 201610655053 A CN201610655053 A CN 201610655053A CN 106268760 A CN106268760 A CN 106268760A
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- 239000011941 photocatalyst Substances 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000002131 composite material Substances 0.000 title claims abstract description 14
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000000843 powder Substances 0.000 claims abstract description 21
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 15
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims abstract description 15
- 239000004141 Sodium laurylsulphate Substances 0.000 claims abstract description 15
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 15
- 239000011572 manganese Substances 0.000 claims abstract description 15
- 239000010445 mica Substances 0.000 claims abstract description 15
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 15
- 235000019333 sodium laurylsulphate Nutrition 0.000 claims abstract description 15
- XURCIPRUUASYLR-UHFFFAOYSA-N Omeprazole sulfide Chemical compound N=1C2=CC(OC)=CC=C2NC=1SCC1=NC=C(C)C(OC)=C1C XURCIPRUUASYLR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229920002472 Starch Polymers 0.000 claims abstract description 14
- UNTBPXHCXVWYOI-UHFFFAOYSA-O azanium;oxido(dioxo)vanadium Chemical compound [NH4+].[O-][V](=O)=O UNTBPXHCXVWYOI-UHFFFAOYSA-O 0.000 claims abstract description 14
- 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 claims abstract description 14
- 235000019698 starch Nutrition 0.000 claims abstract description 14
- 239000008107 starch Substances 0.000 claims abstract description 14
- 238000003756 stirring Methods 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 239000012153 distilled water Substances 0.000 claims abstract description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 12
- 229910021529 ammonia Inorganic materials 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 238000000227 grinding Methods 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 7
- 238000006555 catalytic reaction Methods 0.000 abstract description 6
- 238000010521 absorption reaction Methods 0.000 abstract description 5
- 230000003197 catalytic effect Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000002351 wastewater Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract description 2
- 230000000593 degrading effect Effects 0.000 abstract 1
- 230000001699 photocatalysis Effects 0.000 description 9
- 239000003054 catalyst Substances 0.000 description 8
- 238000007146 photocatalysis Methods 0.000 description 7
- 230000015556 catabolic process Effects 0.000 description 6
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 description 5
- 238000006731 degradation reaction Methods 0.000 description 5
- 229960000907 methylthioninium chloride Drugs 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- -1 DSSC Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011538 cleaning material Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229910052976 metal sulfide Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- LSGOVYNHVSXFFJ-UHFFFAOYSA-N vanadate(3-) Chemical compound [O-][V]([O-])([O-])=O LSGOVYNHVSXFFJ-UHFFFAOYSA-N 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B01J35/39—
-
- 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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0259—Compounds of N, P, As, Sb, Bi
-
- 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
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/20—Vanadium, niobium or tantalum
- B01J23/22—Vanadium
-
- B01J35/615—
-
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/40—Organic compounds containing sulfur
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Abstract
The invention discloses a kind of method preparing pucherite base composite photocatalyst, weigh each raw material according to parts by weight: bismuth nitrate 60 80 parts, ammonium metavanadate 15 20 parts, sodium lauryl sulphate 5 10 parts, manganese mud 5 10 parts, mica powder 8 12 parts, lanthana 12 parts, indium nitrate 23 parts and starch 10 15 parts；Bismuth nitrate is dissolved in ethylene glycol, obtains solution A, ammonium metavanadate is dissolved in the water, obtain solution B；Solution B is poured in solution A, obtain mixed liquor；Again mixed liquor, sodium lauryl sulphate, manganese mud, mica powder, lanthana, indium nitrate and starch are added ball mill, add suitable quantity of water stirring, obtain pastel；First use distilled water wash pastel, through being dried, grind, roasting, obtain photocatalyst.The present invention has that raw material sources are extensive, with low cost, preparation technology is simple, production efficiency is high, energy consumption is low, absorption property is good, catalysis activity is high, catalytic efficiency advantages of higher, can efficient catalytic degrading waste water organic pollution under visible light exposure.
Description
Technical field
The present invention relates to catalysis material technical field, a kind of side preparing pucherite base composite photocatalyst
Method.
Background technology
Since 21 century, along with lifting and the excessive use of natural resources of industrialization paces, dirty along with various environment
Dye, energy scarcity problem constantly aggravate.Therefore, administer various pollution, find new forms of energy extremely urgent with the pressure alleviating the earth.
Photocatalysis technology is in waste water process, gas purification, sterilization, antifouling, self-cleaning material, DSSC, cosmetic
Many fields such as product, gas sensor have a wide range of applications.Photocatalysis is can to produce under light excites based on semi-conducting material
The raw light induced electron with strong reducing property and the fundamental characteristics in the hole with strong oxidizing property, solid photocatalysts can absorb the sun
Water is become hydrogen with biomass decomposition by light, also the organic pollution in air and water body environment and inorganic pollution can be aoxidized or
Deoxidization, degradation is innocuous substance.Therefore, there is the feature of low energy consumption, environmental protection.
At present, the conductor photocatalysis material of domestic and international most study is mainly metal-oxide and sulfide, such as Ti02,
W03, ZnO, Fe203, CdS etc..Pucherite, as monoclinic system scheelite-type structure, has photocatalysis and lives when radiation of visible light
Property, oxygen and degradable organic pollutant can be produced with catalytic water molecular breakdown, be the most promising a kind of catalyst.But,
Light induced electron-hole that pucherite produces in caltalyst phase and surface recombination, causes photocatalytic activity to reduce easily.With
Time pucherite the trickleest because of its granule, be prone to inactivation and cohesion, not free settling using in environment, cause it to be difficult to separate,
Reclaim and recycling.For solving the problems referred to above, increase its stability in use, pucherite is carried on certain carrier, such as glass
Glass, silica gel, activated carbon etc., but the limitations such as these carriers exist that mechanical strength is more weak, chemical stability and poor heat stability.Cause
This, the most effectively stop its light induced electron-hole to being combined, improve the separation efficiency of photo-generated carrier, improve pucherite
Catalysis activity and stability, be the most light-catalysed study hotspot.
Summary of the invention
The present invention is directed to the problem that existing photocatalyst exists, it is provided that a kind of side preparing pucherite base composite photocatalyst
Method.Photocatalyst prepared by this method has that specific surface area is big, catalysis activity height, the utilization rate height to light source, good stability, ring
Protect nontoxic, low cost, the advantage such as can repeatedly use.
In order to realize object above, the technical solution used in the present invention is as follows:
A kind of method preparing pucherite base composite photocatalyst, comprises the following steps:
(1) each raw material is weighed according to parts by weight: bismuth nitrate 60-80 part, ammonium metavanadate 15-20 part, sodium lauryl sulphate 5-
10 parts, manganese mud 5-10 part, mica powder 8-12 part, lanthana 1-2 part, indium nitrate 2-3 part and starch 10-15 part；
(2) bismuth nitrate is dissolved in ethylene glycol, obtains solution A, ammonium metavanadate is dissolved in the water, obtain solution B；
(3) solution A is put in supersonic generator, then solution B is poured in solution A, regulate pH to 4-5 with ammonia, at frequency
Rate is to continue ultrasonic 30-60min under 40-60KHz, obtains mixed liquor；
(4) mixed liquor, sodium lauryl sulphate, manganese mud, mica powder, lanthana, indium nitrate and starch are added ball mill, then
Add suitable quantity of water stirring, obtain pastel；
(5) first use distilled water wash pastel, then by pastel microwave drying 2-3h at 70-90 DEG C, grind to form after drying
Powder, places into muffle furnace roasting 3-5h at temperature is 300-400 DEG C, obtains photocatalyst.
Preferably, above step (4) described stirring is stirring 30-60min under rotating speed is 300-500r/min.
Preferably, the heating rate of the above roasting is 5-10 DEG C/min.
Preferably, above step (5) described grinding is that to grind the material to particle diameter be 1.0-2.0mm.
Compared with prior art, advantages of the present invention and having the beneficial effect that
1, the photocatalyst that the inventive method prepares has bigger specific surface area, good pore structure and more catalysis work
Property center, improve the absorption property of catalyst so that light induced electron and hole can efficiently separate, so improve catalyst
Activity and efficiency, expand the catalyst absorption at visible-range, be greatly improved the catalyst utilization rate to sunlight.
2, the present invention is using sodium lauryl sulphate as dispersant, can solve photocatalyst and be prone to lose in using environment
Live and the problem of cohesion, not free settling.
3, the present invention is using manganese mud and mica powder as carrier, and catalyst performance can not only be made more stable, it is easier to
Separate, reclaim and be used repeatedly, moreover it is possible to improve absorption property and the photocatalysis performance of catalyst.
4, the photocatalyst specific surface area that prepared by the present invention is 200-250m2/ g, degraded to methylene blue in 60 minutes
Rate reaches more than 90%.
5, the present invention have that raw material sources are extensive, with low cost, preparation technology is simple, production efficiency is high, energy consumption is low, reaction
Mild condition, environmental friendliness, absorption property are good, catalysis activity is high, catalytic efficiency advantages of higher, can be efficiently under visible light exposure
Catalytic degradation wastewater organic pollutant, has good economic benefit, social benefit and ecological benefits, is more suitable for industry raw
Produce.
Detailed description of the invention
Below in conjunction with specific embodiment, this programme is further illustrated, but be not limited to protection scope of the present invention.
Embodiment 1
A kind of method preparing pucherite base composite photocatalyst, comprises the following steps:
(1) each raw material is weighed according to following ratio: bismuth nitrate 60g, ammonium metavanadate 15g, sodium lauryl sulphate 5g, manganese mud
8g, mica powder 8g, lanthana 1g, indium nitrate 2g and starch 10g；
(2) bismuth nitrate is dissolved in ethylene glycol, obtains solution A, ammonium metavanadate is dissolved in the water, obtain solution B；
(3) solution A is put in supersonic generator, then solution B is poured in solution A, regulate pH to 4 with ammonia, in frequency
For continuing ultrasonic 60min under 40KHz, obtain mixed liquor；
(4) mixed liquor, sodium lauryl sulphate, manganese mud, mica powder, lanthana, indium nitrate and starch are added ball mill, then
Add 150mL water, under rotating speed is 300r/min, stirs 60min, obtains pastel；
(5) first use distilled water wash pastel, then by pastel microwave drying 3h at 70 DEG C, grind to form 1.0mm after drying
Powder, places into muffle furnace roasting 5h at temperature is 300 DEG C, obtains photocatalyst.
Embodiment 2
A kind of method preparing pucherite base composite photocatalyst, comprises the following steps:
(1) each raw material is weighed according to following ratio: bismuth nitrate 70g, ammonium metavanadate 17g, sodium lauryl sulphate 8g, manganese mud
10g, mica powder 5g, lanthana 1.5g, indium nitrate 3g and starch 12g；
(2) bismuth nitrate is dissolved in ethylene glycol, obtains solution A, ammonium metavanadate is dissolved in the water, obtain solution B；
(3) solution A is put in supersonic generator, then solution B is poured in solution A, regulate pH to 5 with ammonia, in frequency
For continuing ultrasonic 45min under 50KHz, obtain mixed liquor；
(4) mixed liquor, sodium lauryl sulphate, manganese mud, mica powder, lanthana, indium nitrate and starch are added ball mill, then
Add 150mL water, under rotating speed is 400r/min, stirs 45min, obtains pastel；
(5) first use distilled water wash pastel, then by pastel microwave drying 2.5h at 80 DEG C, grind to form after drying
1.0mm powder, places into muffle furnace roasting 4h at temperature is 350 DEG C, obtains photocatalyst.
Embodiment 3
A kind of method preparing pucherite base composite photocatalyst, comprises the following steps:
(1) each raw material is weighed according to following ratio: bismuth nitrate 80g, ammonium metavanadate 20g, sodium lauryl sulphate 10g, manganese mud
5g, mica powder 10g, lanthana 2g, indium nitrate 2g and starch 15g；
(2) bismuth nitrate is dissolved in ethylene glycol, obtains solution A, ammonium metavanadate is dissolved in the water, obtain solution B；
(3) solution A is put in supersonic generator, then solution B is poured in solution A, regulate pH to 4 with ammonia, in frequency
For continuing ultrasonic 30min under 60KHz, obtain mixed liquor；
(4) mixed liquor, sodium lauryl sulphate, manganese mud, mica powder, lanthana, indium nitrate and starch are added ball mill, then
Add 150mL water, under rotating speed is 500r/min, stirs 30min, obtains pastel；
(5) first use distilled water wash pastel, then by pastel microwave drying 2h at 90 DEG C, grind to form 2.0mm after drying
Powder, places into muffle furnace roasting 3h at temperature is 400 DEG C, obtains photocatalyst.
Embodiment 4
A kind of method preparing pucherite base composite photocatalyst, comprises the following steps:
(1) each raw material is weighed according to following ratio: bismuth nitrate 70g, ammonium metavanadate 15g, sodium lauryl sulphate 8g, manganese mud
8g, mica powder 8g, lanthana 2g, indium nitrate 3g and starch 15g；
(2) bismuth nitrate is dissolved in ethylene glycol, obtains solution A, ammonium metavanadate is dissolved in the water, obtain solution B；
(3) solution A is put in supersonic generator, then solution B is poured in solution A, regulate pH to 5 with ammonia, in frequency
For continuing ultrasonic 60min under 40KHz, obtain mixed liquor；
(4) mixed liquor, sodium lauryl sulphate, manganese mud, mica powder, lanthana, indium nitrate and starch are added ball mill, then
Add 150mL water, under rotating speed is 300r/min, stirs 60min, obtains pastel；
(5) first use distilled water wash pastel, then by pastel microwave drying 3h at 80 DEG C, grind to form 2.0mm after drying
Powder, places into muffle furnace roasting 5h at temperature is 300 DEG C, obtains photocatalyst.
The photocatalysis test of catalyst: the photocatalyst will prepared by commercially available pucherite and various embodiments of the present invention below
Contrasting the degradation rate of methylene blue, measurement result is as shown in the table:
Photocatalyst and the commercially available bismuth vanadate photocatalyst each embodiment prepared weigh 1g respectively, and putting into 1L concentration is 10mg/L
Methylene blue simulated water sample, add quartz interlayer reactor in, using 500 W xenon lamps as solar source, at rotating speed be
Under 500r/min, stirring radiation 1h, uses the concentration of Water By High Performance Liquid sample Methylene Blue, calculates photocatalysis
Agent degradation rate.
As seen from table, the photocatalyst prepared by various embodiments of the present invention has higher photocatalytic activity, to methylene blue
Degradation rate all reach more than 90%, the most presently commercially available product, there is good market prospect.
Above content is it cannot be assumed that the present invention is embodied as being confined to these explanations, for the technical field of the invention
Those of ordinary skill for, without departing under present inventive concept premise, it is also possible to make some simple deduction or replace, all answer
When being considered as belonging to the scope of patent protection that the present invention is determined by the claims submitted to.
Claims (4)
1. the method preparing pucherite base composite photocatalyst, it is characterised in that: comprise the following steps:
(1) each raw material is weighed according to parts by weight: bismuth nitrate 60-80 part, ammonium metavanadate 15-20 part, sodium lauryl sulphate 5-
10 parts, manganese mud 5-10 part, mica powder 8-12 part, lanthana 1-2 part, indium nitrate 2-3 part and starch 10-15 part；
(2) bismuth nitrate is dissolved in ethylene glycol, obtains solution A, ammonium metavanadate is dissolved in the water, obtain solution B；
(3) solution A is put in supersonic generator, then solution B is poured in solution A, regulate pH to 4-5 with ammonia, at frequency
Rate is to continue ultrasonic 30-60min under 40-60KHz, obtains mixed liquor；
(4) mixed liquor, sodium lauryl sulphate, manganese mud, mica powder, lanthana, indium nitrate and starch are added ball mill, then
Add suitable quantity of water stirring, obtain pastel；
(5) first use distilled water wash pastel, then by pastel microwave drying 2-3h at 70-90 DEG C, grind to form after drying
Powder, places into muffle furnace roasting 3-5h at temperature is 300-400 DEG C, obtains photocatalyst.
The method preparing pucherite base composite photocatalyst the most according to claim 1, it is characterised in that: step (4) is described
Stirring is stirring 30-60min under rotating speed is 300-500r/min.
The method preparing pucherite base composite photocatalyst the most according to claim 1, it is characterised in that: the liter of described roasting
Temperature speed is 5-10 DEG C/min.
The method preparing pucherite base composite photocatalyst the most according to claim 1, it is characterised in that: step (5) is described
Grinding is that to grind the material to particle diameter be 1.0-2.0mm.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111204804A (en) * | 2020-01-15 | 2020-05-29 | 杭州电子科技大学 | BiVO4Preparation method of nano material |
| CN114570433A (en) * | 2022-03-21 | 2022-06-03 | 广东工业大学 | Composite photocatalyst for wastewater sterilization and preparation method and application thereof |
Citations (1)
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|---|---|---|---|---|
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| CN111204804A (en) * | 2020-01-15 | 2020-05-29 | 杭州电子科技大学 | BiVO4Preparation method of nano material |
| CN114570433A (en) * | 2022-03-21 | 2022-06-03 | 广东工业大学 | Composite photocatalyst for wastewater sterilization and preparation method and application thereof |
| CN114570433B (en) * | 2022-03-21 | 2023-11-24 | 广东工业大学 | Composite photocatalyst for wastewater sterilization and preparation method and application thereof |
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