CN102258989A - Method for preparing glass fiber cloth-loaded nano titanium dioxide photocatalysis reactor - Google Patents
Method for preparing glass fiber cloth-loaded nano titanium dioxide photocatalysis reactor Download PDFInfo
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- CN102258989A CN102258989A CN 201110125561 CN201110125561A CN102258989A CN 102258989 A CN102258989 A CN 102258989A CN 201110125561 CN201110125561 CN 201110125561 CN 201110125561 A CN201110125561 A CN 201110125561A CN 102258989 A CN102258989 A CN 102258989A
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Abstract
The invention ep discloses a method for preparing a glass fiber cloth-loaded nano titanium dioxide photocatalysis reactor. The method comprises the following steps of: A. adding water to vinyl acetate emulsion so as to dilute the vinyl acetate emulsion into a concentration of 0.03-0.20g/L; adding nano titanium dioxide powder body with a concentration of 0.01-0.10g/L; adjusting a pH value of dispersion liquid by using ammonia water to be 9; then dispersing by using ultrasonic waves for about 5min to obtain the dispersion liquid; B. dipping glass fiber cloth into the dispersion liquid prepared in the step A for 30-50min; and C. taking the dipped glass fiber cloth, baking for 4-8min at the temperature of 110-130 DEG C, and naturally cooling to obtain a finished product. The photocatalysis reactor prepared by using the method provided by the invention has higher catalytic activity, the method is simple and convenient and has low preparation cost.
Description
Technical field
The present invention relates to a kind of preparation method of photo catalysis reactor, more particularly relate to and a kind ofly can under lower temperature conditions, utilize polyvinyl acetate emulsion to prepare the method for glass fabric load nano-titanium dioxide photocatalysis reactor.
Background technology
Utilize nano-TiO
2The photocatalyst for degrading organic pollution is subjected to national governments and scientific research personnel's attention.Dyestuff is to mainly contain one of organic pollutants in the dyeing waste water, and methods such as traditional method of wastewater treatment such as flocculence, activated sludge process, bioanalysis and physical-chemical process are difficult to handle.Photocatalysis oxidation technique is the focus of studying at present, TiO
2Rerum natura is stable, nontoxic, can be little molecule inorganic matters such as water, carbon dioxide with the pollutant mineralising of bio-refractory.Suspension nano TiO
2Specific surface is bigger, can contact and be subjected to light also abundant with the thing that is decomposed is more abundant, in general be all to have good photocatalysis performance at solution or in gas-phase reaction, but it is easy to cohesion, free settling not, catalyst is difficult to reclaim, catalyst activity composition loss is big, is unfavorable for the regeneration of catalyst and shortcoming such as utilization again.At fixing phase TiO
2Sol-gel process is the most commonly used in the Preparation of catalysts technology, sol-gel method craft has simply, characteristics such as photocatalytic activity is high, generality height, this method shortcoming is the palpus high temperature sintering, selectivity height to base material, need to consume a large amount of organic solvents in the preparation process, drying, continuous sintering make TiO easily
2Film chaps, and has a large amount of organic solvent volatilizations simultaneously, causes environmental pollution.Binder method has kept the high activity of fine catalyst again in the immobilization that realizes catalyst simultaneously basically.Glass fabric is a kind of good Inorganic Non-metallic Materials, has advantages such as intensity height, acid and alkali-resistance, anticorrosive and light transmission be good, and it has the specific area bigger than other carriers, thereby makes load TiO thereon
2The corresponding increase of specific area improves its activity greatly.
Summary of the invention
One of purpose of the present invention provides a kind of method that simply and very effectively prepares the nano titanium dioxide photocatalysis reactor at the glass fabric surface low-temperature.
Two of purpose of the present invention is that to select the polyvinyl acetate emulsion glass fiber infiltration agent for use be crosslinking agent, with the glass fabric is carrier, deficiency at present domestic and international research present situation and titania powder and film photocatalyst in use exist proposes a kind of method that simply and very effectively prepares the nano titanium dioxide photocatalysis reactor at the glass fabric surface low-temperature.
Of the present invention this will further be set forth by following detailed description and explanation with other purpose.
The method for preparing glass fabric load nano-titanium dioxide photocatalysis reactor of the present invention comprises the steps:
A, be 0.03-0.20g/L with polyvinyl acetate emulsion thin up to concentration, add nano-titanium dioxide powder, concentration is 0.01-0.10g/L, and the pH value of utilizing ammoniacal liquor to adjust dispersion liquid is 9, utilizes ultrasonic wave to disperse to obtain dispersion liquid about 5min then;
B, glass fabric is immersed in 30-50min in the prepared dispersion liquid of A step;
C, taking-up dipping back glass fabric are trained down at 110-130 ℃ and are dried by the fire 4-8min, treat to obtain finished product after the nature cooling.
Further, the method for preparing glass fabric load nano-titanium dioxide photocatalysis reactor of the present invention comprises the steps:
A, be 0.05-0.10g/L with polyvinyl acetate emulsion thin up to concentration, add nano-titanium dioxide powder, concentration is 0.03-0.07g/L, and the pH value of utilizing ammoniacal liquor to adjust dispersion liquid is 9, utilizes ultrasonic wave to disperse to obtain dispersion liquid about 5min then;
B, glass fabric is immersed in 30～50min in the prepared dispersion liquid of A step;
C, taking-up dipping back glass fabric are trained down at 120 ℃ and are dried by the fire 5min, treat to obtain finished product after the nature cooling.
Be preferably, the method for preparing glass fabric load nano-titanium dioxide photocatalysis reactor of the present invention comprises the steps:
A, be 0.05-0.10g/L with polyvinyl acetate emulsion thin up to concentration, add nano-titanium dioxide powder, concentration is 0.05g/L, and the pH value of utilizing ammoniacal liquor to adjust dispersion liquid is 9, utilizes ultrasonic wave to disperse to obtain dispersion liquid about 5min then;
B, glass fabric is immersed in 30～50min in the prepared dispersion liquid of A step;
C, taking-up dipping back glass fabric are trained down at 120 ℃ and are dried by the fire 5min, treat to obtain finished product after the nature cooling.
In the method for preparing glass fabric load nano-titanium dioxide photocatalysis reactor of the present invention, described polyvinyl acetate emulsion is the glass chopped sticking used glass fiber infiltration agent of preparation, nano-titanium dioxide powder is combined with fiberglass surfacing, improve the resistance to water of reactor, washing post-reactor catalytic activity reduces little.Described glass fabric can be prefabricated into various types, and described nano titanium oxide is based on Detitanium-ore-type, and particle size is between 20-80nm.
The prepared photocatalyst of this method can be prepared into different shapes, size by the requirement that reality is used, and can be fixed on according to actual needs in the required processing waste water; Simultaneously the used glass fabric filtering material of can holding concurrently can be used for the filtration and the sterilization of rural area micro polluted source.The prepared photocatalyst of this method is to the degraded of methyl orange, and degradation rate can reach more than 65% after 2 hours; To the degraded of dye wastewater, degradation rate can reach more than 40% after 2 hours.This method utilizes the glass fiber loaded nano titanium dioxide photocatalysis device of polyvinyl acetate emulsion preparation that organic compound is had higher degradation rate, and while method is easy, and preparation cost is low.
Description of drawings
Fig. 1 is the sem photograph of the glass fibre of prepared load nano-titanium dioxide.
Fig. 2 is the XRD figure spectrum of nano-titanium dioxide powder.
Fig. 3 is the transmission electron microscope picture of nano-titanium dioxide powder.
The all raw material of Shi Yonging all is conventional uses in the present invention, can buy from market.In the present invention, refer in particular to as non-, all amount, percentages are unit of weight.Used in the present invention polyvinyl acetate emulsion can be produced for the normal glass composite of Changzhou Co., Ltd, plasticizing market, No. 600 the Changjiang river of Changzhou Tongjiang, address Zhong Lu, the model that can select such as polyvinyl acetate emulsion 801 and 102G etc. are the glass chopped sticking used glass fiber infiltration agents of preparation.
Below in conjunction with embodiment the present invention is carried out concrete description.As known by the technical knowledge, the present invention can realize by other the embodiment that does not break away from its spiritual essence or essential feature.Therefore, following embodiment with regard to each side, all just illustrates, and is not only.All within the scope of the present invention or the change that is equal in the scope of the present invention all be included in the invention.
The specific embodiment
Embodiment 1
With polyvinyl acetate emulsion 801 thin ups to concentration is 0.03g/L, add nano-titanium dioxide powder, be mixed with the dispersion liquid that titanium dioxide concentration is 0.05g/L, the pH value of utilizing ammoniacal liquor to adjust dispersion liquid is 9, utilizes ultrasonic wave to disperse about 5min then; Glass fabric is immersed in 30min in the prepared dispersion liquid; Then glass fabric is trained baking 5min down at 120 ℃, treat that nature cooling back obtains finished product.
The glass fabric 3.0g of prepared load nano-titanium dioxide put into to fill 50ml concentration be the 15mg/L methyl orange solution, in that the irradiation of 57cm place is after 2 hours under the D65 light source, the methyl orange degradation rate reaches 65.13%.
Embodiment 2
With polyvinyl acetate emulsion 102G thin up to concentration is 0.20g/L, and adding concentration is the nano-titanium dioxide powder of 0.06g/L, and the pH value of utilizing ammoniacal liquor to adjust dispersion liquid is 9, utilizes ultrasonic wave to disperse about 5min then; Glass fabric is immersed in 30min in the prepared dispersion liquid; At last glass fabric is trained baking 5min down at 120 ℃, treat that nature cooling back obtains finished product.
The glass fabric 3.0g of prepared load nano-titanium dioxide put into to fill 50ml concentration be the 20mg/L methyl orange solution, in that the irradiation of 60cm place is after 2 hours under 2 15W uviol lamps, the methyl orange degradation rate reaches 72.42%.
Embodiment 3
With polyvinyl acetate emulsion 102G thin up to concentration is 0.03g/L, and adding concentration is the nano-titanium dioxide powder of 0.05g/L, and the pH value of utilizing vinegar ammoniacal liquor to adjust dispersion liquid is 9, utilizes ultrasonic wave to disperse about 5min then; Glass fabric is immersed in 30min in the prepared dispersion liquid; Glass fabric is trained baking 5min down at 120 ℃, treat that nature cooling back obtains finished product.
The glass fabric 3.0g of prepared load nano-titanium dioxide put into fill 50ml by 0.15g/L reactive golden yellow R-4RFN, 10g/LNaCl, 2.5g/LNa
2CO
3In the dye wastewater of forming, after 2 hours were shone in 57cm place under the D65 light source, degradation rate reached 52.74%.
Embodiment 4
Put into by the glass fabric 3.0g of the load nano-titanium dioxide of embodiment 3 preparation and to fill the dye wastewater that 50ml is made up of 0.1g/L direct scarlet 4BS, 2.5g/L NaCl, after 2 hours were shone in 57cm place under the D65 light source, degradation rate reached 52.74%.
Put into by the glass fabric 3.0g of embodiment 3 preparation load nano-titanium dioxides and to fill the dye wastewater that 50ml is made up of 0.2g/L Acid Red B, 2.5g/L NaCl, after 2 hours were shone in 60cm place under 2 15W uviol lamps, degradation rate reached 60.82%.
Embodiment 6:
Put into by the glass fabric 3.0g of embodiment 3 preparation load nano-titanium dioxides and to fill the dye wastewater that 50ml is made up of 0.2g/L reductive blue RSN, 2.5g/L NaCl, after 2 hours were shone in 57cm place under the D65 light source, degradation rate reached 42.26%.
Claims (6)
1. a method for preparing glass fabric load nano-titanium dioxide photocatalysis reactor is characterized in that comprising the steps:
A, be 0.03-0.20g/L with polyvinyl acetate emulsion thin up to concentration, add nano-titanium dioxide powder, concentration is 0.01-0.10g/L, and the pH value of utilizing ammoniacal liquor to adjust dispersion liquid is 9, utilizes ultrasonic wave to disperse to obtain dispersion liquid about 5min then;
B, glass fabric is immersed in 30-50min in the prepared dispersion liquid of A step;
C, taking-up dipping back glass fabric are trained down at 110-130 ℃ and are dried by the fire 4-8min, treat to obtain finished product after the nature cooling.
2. the method for preparing glass fabric load nano-titanium dioxide photocatalysis reactor according to claim 1 is characterized in that comprising the steps:
A, be 0.05-0.10g/L with polyvinyl acetate emulsion thin up to concentration, add nano-titanium dioxide powder, concentration is 0.03-0.07g/L, and the pH value of utilizing ammoniacal liquor to adjust dispersion liquid is 9, utilizes ultrasonic wave to disperse to obtain dispersion liquid about 5min then;
B, glass fabric is immersed in 30～50min in the prepared dispersion liquid of A step;
C, taking-up dipping back glass fabric are trained down at 120 ℃ and are dried by the fire 5min, treat to obtain finished product after the nature cooling.
3. the method for preparing glass fabric load nano-titanium dioxide photocatalysis reactor according to claim 1 and 2 is characterized in that comprising the steps:
A, be 0.05-0.10g/L with polyvinyl acetate emulsion thin up to concentration, add nano-titanium dioxide powder, concentration is 0.05g/L, and the pH value of utilizing ammoniacal liquor to adjust dispersion liquid is 9, utilizes ultrasonic wave to disperse to obtain dispersion liquid about 5min then;
B, glass fabric is immersed in 30～50min in the prepared dispersion liquid of A step;
C, taking-up dipping back glass fabric are trained down at 120 ℃ and are dried by the fire 5min, treat to obtain finished product after the nature cooling.
4. according to the described method for preparing glass fabric load nano-titanium dioxide photocatalysis reactor of one of claim 1-3, it is characterized in that described polyvinyl acetate emulsion is the glass chopped sticking used glass fiber infiltration agent of preparation.
5. according to the described method for preparing glass fabric load nano-titanium dioxide photocatalysis reactor of one of claim 1-3, it is characterized in that described glass fabric can be prefabricated into various types.
6. according to the described method for preparing glass fabric load nano-titanium dioxide photocatalysis reactor of one of claim 1-3, it is characterized in that described nano titanium oxide based on Detitanium-ore-type, particle size is between 20-80nm.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105268424A (en) * | 2014-06-26 | 2016-01-27 | 北京博大环球科技有限公司 | Method for preparing glass fiber cloth with effective desulfurization and denitration effects upon boiler tail gas |
| CN105401404A (en) * | 2015-11-10 | 2016-03-16 | 盐城工学院 | Fabric for treating printing and dyeing wastewater and preparation method of fabric |
| CN106582590A (en) * | 2016-04-28 | 2017-04-26 | 北京华钛高科科技有限公司 | Glass fiber felt-nano TiO2 coating structure, preparation method therefor and use of glass fiber felt-nano TiO2 coating structure |
| CN107640801A (en) * | 2017-10-12 | 2018-01-30 | 黑龙江大学 | A kind of method of photocatalysis coupled filtering integral PROCESS FOR TREATMENT phenol wastewater |
| CN110385147A (en) * | 2019-07-05 | 2019-10-29 | 广西大学 | A kind of bagasse cellulose-nano-TiO2The preparation method of complex carrier |
| CN116023046A (en) * | 2023-02-24 | 2023-04-28 | 中国科学院新疆理化技术研究所 | Organic-inorganic nano hybridization basalt fiber sizing agent and preparation method thereof |
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| CN1157871A (en) * | 1996-12-31 | 1997-08-27 | 江阴联华化工建材有限公司 | Coloured glass fibre felt paper and its manufacturing method |
| CN1943849A (en) * | 2006-10-24 | 2007-04-11 | 云南大学 | Process for preparing glass fiber loaded optic catalyst |
| CN101391866A (en) * | 2008-10-06 | 2009-03-25 | 巨石集团有限公司 | High-strength alkali-free glass fibre direct roving sizing agent for optical cable strengthening core |
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| CN1157871A (en) * | 1996-12-31 | 1997-08-27 | 江阴联华化工建材有限公司 | Coloured glass fibre felt paper and its manufacturing method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105268424A (en) * | 2014-06-26 | 2016-01-27 | 北京博大环球科技有限公司 | Method for preparing glass fiber cloth with effective desulfurization and denitration effects upon boiler tail gas |
| CN105401404A (en) * | 2015-11-10 | 2016-03-16 | 盐城工学院 | Fabric for treating printing and dyeing wastewater and preparation method of fabric |
| CN106582590A (en) * | 2016-04-28 | 2017-04-26 | 北京华钛高科科技有限公司 | Glass fiber felt-nano TiO2 coating structure, preparation method therefor and use of glass fiber felt-nano TiO2 coating structure |
| CN106582590B (en) * | 2016-04-28 | 2018-08-21 | 北京华钛高科科技有限公司 | Glass mat-nano-TiO2Coating structure and its preparation method and application |
| CN107640801A (en) * | 2017-10-12 | 2018-01-30 | 黑龙江大学 | A kind of method of photocatalysis coupled filtering integral PROCESS FOR TREATMENT phenol wastewater |
| CN110385147A (en) * | 2019-07-05 | 2019-10-29 | 广西大学 | A kind of bagasse cellulose-nano-TiO2The preparation method of complex carrier |
| CN110385147B (en) * | 2019-07-05 | 2022-02-22 | 广西大学 | Bagasse cellulose-nano TiO2Preparation method of composite carrier |
| CN116023046A (en) * | 2023-02-24 | 2023-04-28 | 中国科学院新疆理化技术研究所 | Organic-inorganic nano hybridization basalt fiber sizing agent and preparation method thereof |
| CN116023046B (en) * | 2023-02-24 | 2024-03-01 | 中国科学院新疆理化技术研究所 | Organic-inorganic nano hybridization basalt fiber sizing agent and preparation method thereof |
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Application publication date: 20111130 |