CN110270355A - A kind of preparation method of glass fabric load bismuth oxyiodide photocatalyst film - Google Patents
A kind of preparation method of glass fabric load bismuth oxyiodide photocatalyst film Download PDFInfo
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- CN110270355A CN110270355A CN201810216230.XA CN201810216230A CN110270355A CN 110270355 A CN110270355 A CN 110270355A CN 201810216230 A CN201810216230 A CN 201810216230A CN 110270355 A CN110270355 A CN 110270355A
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- bismuth oxyiodide
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- glass fabric
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- precursor liquid
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- CBACFHTXHGHTMH-UHFFFAOYSA-N 2-piperidin-1-ylethyl 2-phenyl-2-piperidin-1-ylacetate;dihydrochloride Chemical compound Cl.Cl.C1CCCCN1C(C=1C=CC=CC=1)C(=O)OCCN1CCCCC1 CBACFHTXHGHTMH-UHFFFAOYSA-N 0.000 title claims abstract description 83
- 239000004744 fabric Substances 0.000 title claims abstract description 54
- 239000011521 glass Substances 0.000 title claims abstract description 51
- 238000002360 preparation method Methods 0.000 title claims abstract description 43
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 28
- 239000002243 precursor Substances 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 239000003054 catalyst Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000007787 solid Substances 0.000 claims abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 35
- 239000010408 film Substances 0.000 claims description 35
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 31
- 239000000377 silicon dioxide Substances 0.000 claims description 17
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 15
- 229960004756 ethanol Drugs 0.000 claims description 14
- 235000019441 ethanol Nutrition 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 238000013019 agitation Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 8
- 239000003365 glass fiber Substances 0.000 claims description 8
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 7
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- 239000008236 heating water Substances 0.000 claims description 6
- 239000010409 thin film Substances 0.000 claims description 6
- 238000010992 reflux Methods 0.000 claims description 4
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 3
- 238000005119 centrifugation Methods 0.000 claims description 2
- 238000010907 mechanical stirring Methods 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- 230000001699 photocatalysis Effects 0.000 abstract description 13
- 238000007146 photocatalysis Methods 0.000 abstract description 12
- 238000006731 degradation reaction Methods 0.000 abstract description 9
- 230000015556 catabolic process Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 238000009826 distribution Methods 0.000 abstract description 2
- 239000010865 sewage Substances 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000007711 solidification Methods 0.000 abstract 1
- 230000008023 solidification Effects 0.000 abstract 1
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 17
- 229940106691 bisphenol a Drugs 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000006555 catalytic reaction Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 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
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000703 high-speed centrifugation Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000002351 wastewater Substances 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
-
- 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/06—Halogens; Compounds thereof
-
- B01J35/39—
-
- B01J35/59—
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0215—Coating
- B01J37/0217—Pretreatment of the substrate before coating
-
- 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
- C02F2101/34—Organic compounds containing oxygen
- C02F2101/345—Phenols
-
- 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 present invention relates to a kind of preparation methods of glass fabric load bismuth oxyiodide photocatalysis film.The invention belongs to photocatalysis technology fields.A kind of glass fabric load bismuth oxyiodide photocatalyst film, the specific steps of which are as follows: the pretreatment of 1. glass fabrics；2. the preparation of bismuth oxyiodide precursor liquid；3. the coating of film；4. roasting solidification.The present invention has the following: 1. catalyst distributions of the present invention are uniform, and growth is solid, adhesive force is stronger, and catalyst activity Gao Bingke is repeatedly used；2. the preparation of bismuth oxyiodide precursor liquid is simple；3. simple process, high production efficiency；4. there is good degradation effect to environment incretion interferent BPA under simulated solar irradiation, have in actual sewage processing engineering good with prospect.
Description
Technical field:
The invention belongs to photocatalysis technology fields, thin more particularly to a kind of load bismuth oxyiodide photocatalysis of glass fabric
The preparation method of film.
Background technique:
In recent years, with economic rapid development, a series of environmental problem is more and more prominent, and a large amount of waste water is discarded
Object enters in water environment, causes tremendous influence to our production and living.
Photocatalitic Technique of Semiconductor can effectively degrade a variety of noxious pollutants in water, because it is with very strong energy of oxidation
Power, while easily prepared, it is low in cost, non-toxic the features such as and widely paid close attention to, there is now many research reports and partly lead
Potentiality of the body photochemical catalyst in pollutant process.
TiO most widely used at present2Photochemical catalyst can only have in ultraviolet region to be responded, and utilizable sunlight
Most of is visible light, therefore it is essential that development has the catalysis material of response in visible-range.Bismuth oxyiodide is
A kind of novel conductor photocatalysis material, it has unique internal electric field, layer structure, there is very big sound to visible light
It answers, and can effectively realize the separation in light induced electron and hole.
However up to now until, the bismuth oxyiodide catalysis material largely synthesized is mostly particulate powder, this material
Although having the advantages that preparation is simple, contacting that abundant, reaction rate is high with reaction solution, in practical applications, fine catalyst
Partial size is smaller, it is difficult to separate from catalystic converter system, be easy to cause the loss of photochemical catalyst, constrain it in water process
In practical application.Therefore, photocatalyst can effectively be isolated it in the reaction system in solid substrate
Come and post-processed, reduces cost recovery.Glass fabric is a kind of novel photocatalyst body material, is had good
The features such as against weather well, corrosion resistance, high intensity.In addition, loaded optic catalyst can keep light on glass fabric
Adsorption capacity of the catalyst to reactant.But how uniformly to load bismuth oxyiodide photochemical catalyst securely on glass fabric,
And how large scale, in large quantity production be a problem.In order to overcome bismuth oxyiodide photocatalyst powder in use process
Present in be difficult to the shortcomings that separating, study a kind of glass fabric that stability is good load bismuth oxyiodide photocatalyst film
Preparation method is project urgently to be resolved.Meanwhile existing some catalysis materials are difficult to apply in actual techniques, and light is anti-
Answering device is one of the approach for solving this problem.Therefore, bismuth oxyiodide powder is made into film also can be the photocatalysis depollution of environment
The practical application of technology provides technological reserve and device basis.
Summary of the invention:
The present invention is directed to existing insufficient in use for current bismuth oxyiodide powder, propose it is a kind of simple rather than
Often effectively in the method for glass fabric surface uniform load bismuth oxyiodide powder photocatalyst.
The purpose of the present invention is to provide a kind of catalyst distribution is uniform, adhesive force is strong, and bismuth oxyiodide photocatalytic activity is high,
The preparation method of the glass fabric load bismuth oxyiodide photochemical catalyst of the features such as simple process, high production efficiency, performance is stablized,
It the described method comprises the following steps:
1) pretreated glass fiber cloth
Glass fabric is cleaned with deionized water, then glass fibre is arranged in Muffle furnace and is roasted, by it after cooling
It is cut into 5 × 15cm size.
2) preparation of bismuth oxyiodide powder
By Bi (NO3)3·5H2O and KI are dissolved separately in ethylene glycol, later by Bi (NO3)3·5H2O solution is added dropwise
It into KI solution, is transferred in reaction kettle, is sealed after being sufficiently mixed, heated in 160 DEG C of baking ovens.Consolidate after cooling by what is obtained
Body uses ethyl alcohol and deionized water to rinse centrifugation repeatedly respectively, dries in 80 DEG C of baking ovens, obtains bismuth oxyiodide powder.
3) preparation of silica solution
Ethyl orthosilicate is added in ethyl alcohol, strong magnetic agitation, heating water bath, then hydrochloric acid is added dropwise, is heated to reflux to obtain silicon
Colloidal sol.
4) preparation of bismuth oxyiodide precursor liquid
The obtained silica solution of step 3) is added in ethyl alcohol, magnetic agitation adds the obtained iodine oxidation of step 2)
Bismuth photochemical catalyst, is sufficiently mixed, and obtains bismuth oxyiodide precursor liquid.
5) preparation of bismuth oxyiodide precursor thin-film
Bismuth oxyiodide precursor liquid obtained in step 4) is uniformly brushed into the glass fibers obtained in step 1) with fine, soft fur brush
On Wei Bu, bismuth oxyiodide precursor thin-film is obtained.
6) solidify
Bismuth oxyiodide precursor thin-film obtained in step 5) is placed in baking and curing in baking oven, cooled to room temperature obtains
Bismuth oxyiodide photocatalyst film is loaded to glass fabric.
The preparation method of the glass fabric load bismuth oxyiodide photocatalyst film, it is characterized in that: pretreatment glass
In glass fiber cloth, 2h is roasted, temperature is 500 DEG C.
The preparation method of the glass fabric load bismuth oxyiodide photocatalyst film, it is characterized in that: silica solution
In preparation, the volumn concentration of ethyl alcohol is 20-30%, the strong magnetic agitation 30min of the mixed liquor of ethyl orthosilicate and ethyl alcohol, water
Bath heating.
The preparation method of the glass fabric load bismuth oxyiodide photocatalyst film, it is characterized in that: silica solution
In preparation, the mixed liquor heating water bath of ethyl orthosilicate and ethyl alcohol is to 78 DEG C, then hydrochloric acid is added dropwise, and temperature is kept for 78 DEG C, heats back
13min is flowed, silica solution is obtained.
The preparation method of the glass fabric load bismuth oxyiodide photocatalyst film, it is characterized in that: silica solution
In preparation, the concentration of hydrochloric acid is 0.7M, and the volumn concentration of hydrochloric acid is 10-20%.
The preparation method of the glass fabric load bismuth oxyiodide photocatalyst film, it is characterized in that: bismuth oxyiodide
In the preparation of precursor liquid, the molten volume percent content with dehydrated alcohol of silica solution is 4.8-6%.
The preparation method of the glass fabric load bismuth oxyiodide photocatalyst film, it is characterized in that: bismuth oxyiodide
In the preparation of precursor liquid, the concentration of nanometer bismuth oxyiodide is 0.1-0.25mol/L in the precursor liquid of bismuth oxyiodide, and precursor liquid uses
Mechanical stirring 1h.
For the present invention using glass fabric as carrier, provided preparation method is without expensive equipment and harsh prepares item
Part, easy to operate, photocatalysis film obtained shows the flower ball-shaped pattern of nanometer sheet composition, is securely grown in glass fabric
On substrate and it is evenly distributed.Its photoelectric properties is brilliant, and catalytic performance is good, and membrane structure is stablized, and reusing is high.In addition,
The present invention is suitable for high-volume, large scale production, has good degradation effect to environment incretion interferent bisphenol-A, in reality
Having in the sewage treatment project of border good can use prospect.
Detailed description of the invention:
Fig. 1 is the XRD spectrum of bismuth oxyiodide particle.
Fig. 2 is the SEM figure of prepared glass fabric load bismuth oxyiodide photochemical catalyst.
Fig. 3 is the TEM figure of bismuth oxyiodide particle.
Fig. 4 is the UV-Vis-DRS map of bismuth oxyiodide
Fig. 5 is that glass fabric load bismuth oxyiodide photochemical catalyst prepared by case study on implementation 2 is degraded under simulated solar irradiation
The effect picture of incretion interferent BPA；Figure middle line A is blank group, and line B is the degradation effect for repeating to brush 3 films, and line C is to repeat
The degradation results of 5 films are brushed, line D is the degradation results for repeating to brush 7 films.- 60-0min is dark reaction, and 0-120min is illumination
Lower degradation reaction.
Fig. 6 is the recycling performance schematic diagram of prepared glass fabric load bismuth oxyiodide photocatalyst film.
Specific embodiment:
The following examples are further illustrations of the invention, rather than limiting the invention.
Embodiment 1:
A kind of preparation method of glass fabric load bismuth oxyiodide photochemical catalyst, the described method comprises the following steps:
1) glass fabric is cleaned with deionized water, 500 DEG C of roasting 2h in Muffle furnace is placed it in later, to natural cooling
It is cut into the glass fabric of 5x15cm afterwards.
2) 0.489g KI and 1.4553g Bi (NO is accurately weighed3)3·5H2O is dissolved in the ethylene glycol of 20mL respectively
In, respectively obtain solution A and B.Solution B is added dropwise in solution A, the reaction kettle of 50mL is transferred to after being sufficiently mixed uniformly
In, it seals, is heated for 24 hours in 160 DEG C of baking ovens.After cooling by obtained solid use respectively ethyl alcohol and deionized water rinse 3 times and from
Then the heart is dried overnight in 80 DEG C of baking ovens.Bismuth oxyiodide powder is obtained after being ground after cooling with agate mortar.
3) 5mL ethyl orthosilicate is added in 2.6mL ethyl alcohol, strong magnetic agitation 30min, is dripped when heating water bath is to 78 DEG C
Add the hydrochloric acid of 1.7mL 0.7M, temperature is kept for 78 DEG C, is heated to reflux 13min, obtains silica solution.
4) it takes obtained silica solution in 1.5mL step 3) to mix in 30mL dehydrated alcohol, adds 2.0g step 2)
Obtained in bismuth oxyiodide powder, magnetic agitation 1h obtains bismuth oxyiodide precursor liquid.
5) bismuth oxyiodide precursor liquid obtained in step 4) is uniformly brushed into the glass obtained in step 1) with fine, soft fur brush
It in fiber cloth, repeats 3,5,7 times respectively as needed, bismuth oxyiodide presoma photocatalysis film is made.
6) bismuth oxyiodide presoma photocatalysis film obtained in step 5) is placed in baking and curing in baking oven, it is naturally cold
But glass fabric load bismuth oxyiodide photocatalyst film is obtained to room temperature.
Glass fabric obtained load bismuth oxyiodide photocatalyst film is by XRD progress material phase analysis in embodiment 1,
Morphology characterization is carried out by SEM and TEM, its optical absorption characteristics is characterized by DRS.As shown in Figure 1, being supported on substrate glasses fiber
Bismuth oxyiodide powder and standard card (JCPDS 10-0445) on cloth unanimously, and do not have other impurities, illustrate glass fabric
On the structure of bismuth oxyiodide powder that is loaded no change has taken place.As shown in Figures 2 and 3, bismuth oxyiodide powder successfully loads
The bismuth oxyiodide powder on glass fabric and being evenly distributed, and being loaded is laminated structure.Its absorbing properties such as Fig. 4 institute
Show, bismuth oxyiodide photocatalysis film has strong absorption with visible region ultraviolet in the product, and absorbing wavelength is up to 650nm
Left and right has good visible light-responded.
Embodiment 2
It is accurate to measure the incretion interferent bisphenol-A that 40mL concentration is 20ppm, it is placed in the crystal reaction tube of 50mL, point
Reaction tube will not be fixed on by the load bismuth oxyiodide photochemical catalyst glass fabric film prepared in embodiment 1.It is protected from light
1h is stirred, 2h is irradiated with 800w xenon lamp simulated solar irradiation, samples 1mL at regular intervals, with 8000rmp speed high speed centrifugation,
And Aspirate supernatant 200uL.The content of bisphenol-A is measured with high performance liquid chromatograph, and calculates the surplus ratio of bisphenol-A.Simulation is too
Sunlight irradiates 2h, is coated with 3,5,7 layers of glass fabric load bismuth oxyiodide photocatalyst film and distinguishes the removal rate of bisphenol-A
It is 99.2%, 99.6%, 100%.Fig. 5 is that the product is degraded the degradation efficiency figure of BPA under the conditions of simulated solar irradiation.Degradation knot
Film is taken out after beam, adds the bisphenol-A solution that 40mL concentration is 20ppm again, photocatalytic degradation is carried out with similarity condition
Experiment, repetitive cycling 5 times.As a result as shown in fig. 6, bismuth oxyiodide photocatalysis film prepared by the present invention is reused 5 times, two is small
When after the degradation efficiency of bisphenol-A is remained to reach 95%.Embody the bismuth oxyiodide photocatalysis film tool of glass fabric load
There is higher stability, can be used for bisphenol-A of repeatedly degrading.
Claims (8)
1. a kind of preparation method of glass fabric load bismuth oxyiodide photocatalyst film, which is characterized in that the method packet
Include following steps:
1) pretreated glass fiber cloth
Glass fabric is cleaned with deionized water, then glass fibre is arranged in Muffle furnace and is roasted, is cut into 5 after cooling
× 15cm size.
2) preparation of bismuth oxyiodide powder
By Bi (NO3)3·5H2O and KI are dissolved separately in ethylene glycol, later by Bi (NO3)3·5H2O solution is added dropwise to KI
It in solution, is transferred in reaction kettle, is sealed after being sufficiently mixed, heated in 160 DEG C of baking ovens.Obtained solid is used after cooling
Ethyl alcohol and deionized water rinse centrifugation repeatedly, dry in 80 DEG C of baking ovens, obtain bismuth oxyiodide powder.
3) preparation of silica solution
Ethyl orthosilicate is added in ethyl alcohol, strong magnetic agitation, heating water bath, then hydrochloric acid is added dropwise, is heated to reflux to obtain silica solution.
4) preparation of bismuth oxyiodide precursor liquid
The obtained silica solution of step 3) is added in ethyl alcohol, magnetic agitation adds the obtained bismuth oxyiodide light of step 2)
Catalyst is sufficiently mixed, and obtains bismuth oxyiodide precursor liquid.
5) preparation of bismuth oxyiodide precursor thin-film
Bismuth oxyiodide precursor liquid obtained in step 4) is uniformly brushed into the glass fabric obtained in step 1) with fine, soft fur brush
On, obtain bismuth oxyiodide precursor thin-film.
6) solidify
Bismuth oxyiodide precursor thin-film obtained in step 5) is placed in baking and curing in baking oven, cooled to room temperature obtains glass
Glass fiber cloth loads bismuth oxyiodide photocatalyst film.
2. the preparation method of glass fabric load bismuth oxyiodide photocatalyst film according to claim 1, feature
It is: in step 1) the pretreated glass fiber cloth, roasts 2h, temperature is 500 DEG C.
3. the preparation method of glass fabric load bismuth oxyiodide photocatalyst film according to claim 1, feature
Be: in the preparation of the step 3) silica solution, the volumn concentration of ethyl alcohol is≤30%.Ethyl orthosilicate and ethyl alcohol it is mixed
Close the strong magnetic agitation >=30min of liquid, heating water bath.
4. the preparation method of glass fabric load bismuth oxyiodide photocatalyst film according to claim 1, feature
Be: in the preparation of the step 3) silica solution, the mixed liquor heating water bath of ethyl orthosilicate and ethyl alcohol is to 78 DEG C, then salt is added dropwise
Acid, temperature are kept for 78 DEG C, are heated to reflux 13min, obtain silica solution.
5. according to claim 1 or glass fabric described in 3 any one load bismuth oxyiodide photocatalyst film preparation
Method, it is characterised in that: in the preparation of the step 3) silica solution, the concentration of hydrochloric acid is≤0.7M, and the volume basis of hydrochloric acid contains
Amount is 10-20%.
6. the preparation method of glass fabric load bismuth oxyiodide photocatalyst film according to claim 1, feature
Be: in the preparation of step 4) the bismuth oxyiodide precursor liquid, the molten volume percent content with dehydrated alcohol of silica solution is
4.8-6%.
7. the preparation method of glass fabric load bismuth oxyiodide photocatalyst film according to claim 1, feature
Be: in the preparation of step 4) the bismuth oxyiodide precursor liquid, the concentration of nanometer bismuth oxyiodide is in the precursor liquid of bismuth oxyiodide
0.1-0.25mol/L, precursor liquid use mechanical stirring >=1h.
8. the preparation method of glass fabric load bismuth oxyiodide photocatalyst film according to claim 1 or claim 7, special
Sign is: uniformly being brushed bismuth oxyiodide precursor liquid on glass fabric with fine, soft fur brush, glass fabric is roasted at 100 DEG C
1h is dried, finished product is obtained after natural cooling.Can repeat the above steps 5) -6 as needed) increase and applies hierachy number.
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| CN201810216230.XA CN110270355A (en) | 2018-03-15 | 2018-03-15 | A kind of preparation method of glass fabric load bismuth oxyiodide photocatalyst film |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111744549A (en) * | 2020-07-25 | 2020-10-09 | 合肥学院 | Glass fiber cloth loaded W/BiVO4Preparation method and application of photocatalyst |
| CN113145092A (en) * | 2021-03-15 | 2021-07-23 | 上海交通大学 | Titanium dioxide/glass fiber cloth composite material, preparation method and application thereof |
| CN114057225A (en) * | 2020-08-05 | 2022-02-18 | 黄石加柯环保科技有限公司 | Method and equipment for preparing linear titanium dioxide crystal |
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| CN114057225A (en) * | 2020-08-05 | 2022-02-18 | 黄石加柯环保科技有限公司 | Method and equipment for preparing linear titanium dioxide crystal |
| CN113145092A (en) * | 2021-03-15 | 2021-07-23 | 上海交通大学 | Titanium dioxide/glass fiber cloth composite material, preparation method and application thereof |
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