CN105195234A - Preparation method of fiber photocatalyst - Google Patents
Preparation method of fiber photocatalyst Download PDFInfo
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- CN105195234A CN105195234A CN201510676076.0A CN201510676076A CN105195234A CN 105195234 A CN105195234 A CN 105195234A CN 201510676076 A CN201510676076 A CN 201510676076A CN 105195234 A CN105195234 A CN 105195234A
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Abstract
The invention discloses a preparation method of a fiber photocatalyst. The preparation method comprises steps as follows: 1), an organic solvent is uniformly mixed with absolute ethyl alcohol, and a mixed solvent is obtained, wherein the organic solvent accounts for 75%-85% of the total volume of the mixed solvent; 2), nano-titanium dioxide is added to the mixed solvent obtained in the step 1) to be uniformly dispersed, and a nano-titanium dioxide dispersed solution is obtained; 3), polyacrylonitrile fiber is pulled to pass through the nano-titanium dioxide dispersed solution and enter a coagulating bath to be cured and formed, and the fiber photocatalyst is obtained through washing and drying. The preparation method is simple in process and suitable for industrialization, and a prepared product has lasting and stable photocatalysis and is easy to recover after being used.
Description
Technical field
The present invention relates to photocatalysis technology field, particularly relate to a kind of preparation method of fiber photocatalyst.
Background technology
Along with the development of society and the quickening of process of industrialization, water pollutions is on the rise, and wherein, the process of wastewater in textile printing and dyeing industry has the features such as the carcinogenicity that discharge capacity is large, biological degradability is poor and potential, has become the environmental issue of global common concern.Irradiated TiO is found from Fujishima and Honda in 1972
2since surface energy generation redox reaction, photocatalysis technology is as a kind of new water treatment technology, and the investigation and application of its photocatalytic process is paid attention to widely.Nano titanium oxide is because its catalytic activity is high, good stability, non-secondary pollution, and harmless and be subject to the favor of scientific research personnel to animals and plants.In the application process of actual water treatment, suspension system is mostly adopted to carry out photocatalytic process.Granular nano titanium oxide is scattered in water, and large with pollutant contact area, mass transfer effect is good, and catalytic efficiency is high.But, because nano titanium oxide particle diameter is little, proportion is low, cause its separation difficulty in a fluid, not easily reclaim after using, loss in various degree can be produced, not easily use on a large scale.Nano titanium oxide is carried on certain carrier, the shortcoming of suspended phase nano titanium oxide can be overcome, solve the problem that nano titanium oxide uses rear difficult separation and recycling.Therefore, the immobilization technology of nano titanium oxide is one of the study hotspot in photocatalysis technology field always.
The fixing means of nano-photocatalyst mainly contains: sol-gel process, chemical vapour deposition technique, physical vaporous deposition, liquid phase deposition, electrophoretic deposition, the Molecular Adsorption precipitation method etc., are fixed on the matrixes such as film, fiber, metal, glass, pottery, obtain easily separated, can the photochemical catalyst of reuse.Wherein, fiber becomes to widen the advantages such as its application the load matrix having application prospect because specific area is large, be easy to be processed into further by weaving or non-organization method the product of variform.Qi etc. by soaking-roll-nano titanium oxide is coated on cotton fiber by the traditional handicraft such as baking-roasting, investigate its photocatalytic degradation effect to red wine spot and coffee stain, found that, after sunlight irradiation 8h, color spot disappears substantially, but coating stability Shortcomings, this technology is disclosed materials chemistry magazine, 16th volume the 47th phase 4567-4574 page in 2006, title of article: self-cleaning cotton (namely, Self-cleaningCotton [J] .JournalofMaterialsChemistry, 2006, 16 (47): 4567-4574.) Gilmour etc. have prepared the photochemical catalyst of diallyl dimethyl amine hydrochlorate (PDDA) clad nano titanium dioxide capsule structure with sol-gal process, then by dipping-coating is fixed on the glass fibers, after calcining, obtain the nano titanium dioxide hybrid glass fabric that photocatalysis performance is good, within the time of 30min, to the degradation rate of methylene blue more than 90%, wherein the dosage of nano titanium oxide is 1g/20mL, the concentration of methylene blue is 10ppm, but this product pliability is poor, and application is subject to certain restrictions.This technology is disclosed " industry with engineering chemistry study " the 52nd volume the 50th phase 17800-17811 page in 2013; title of article: the photocatalysis performance of the titanium deoxid film protecting titanium dioxide to obtain by polymer; i.e. PhotocatalyticPerformanceofTitaniumDioxideThinFilmsfromP olymer-EncapsulatedTitania [J] .Industrial & EngineeringChemistryResearch; 2013,52 (50): 17800-17811..Lin etc. are by sol-gal process and prepared the nano titanium oxide/silver with plasmon characteristic/silver bromide modified glass-fiber, i.e. Ag-AgBr-TiO in conjunction with online reducing process
2/ GF, it is respond well to Photocatalytic Degradation of Methyl Orange under visible light, and has good stability, and weak point is that preparation process is complicated, and with high costs, is difficult to suitability for industrialized production.This technology is disclosed " applied catalysis B: environment ", and 166-167 in 2015 rolled up for the 0th phase, 287-294 page, title of article: the light-catalysed preparation of fiber base surface plasma and performance study under visible light thereof; I.e. Preparationoffiber-basedplasmonicphotocatalystanditsphot ocatalyticperformanceunderthevisiblelightAppliedCatalysi sB:Environmental, 2015,166 – 167 (0): 287-294..Nano titanium oxide and cellulose acetate are dissolved in formic acid, acetone, water mixed solvent by Bedford etc., and having adopted coaxial method of electrostatic spinning to prepare take cellulose acetate as core, and nano titanium oxide is cellulose (the core)-TiO of sheath
2(sheath) nanofiber, obtain the nanofiber textile with self-cleaning performance, this technology is disclosed " ACS application material and interface ", 2nd volume the 8th phase 2448-2455 page in 2010, title of article: coaxial electrostatic spinning prepares photocatalytic self-cleaning fiber, i.e. PhotocatalyticSelfCleaningTextileFibersbyCoaxialElectros pinning, ACSAppliedMaterials & Interfaces, 2010,2 (8): 2448-2455.After Meng etc. will prepare nanometer titanium dioxide fiber by electrostatic spinning-roasting, it is combined with dimethyl silicone polymer matrix, sheet glass, obtain microfluid photocatalytic fiber reactor methylene blue being had to good Photocatalytic Degradation Property, this technology is disclosed " nanoscale " the 5th volume o. 11th in 2013,4687-4690 page, title of article: the nanometer titanium dioxide fiber utilizing Static Spinning to obtain is as the efficient microfluid base optic catalytic reactor of photochemical catalyst; That is, Ahighefficiencymicrofluidic-basedphotocatalyticmicroreac torusingelectrospunnanofibrousTiO
2asaphotocatalyst, Nanoscale, 2013,5 (11): 4687-4690.In view of the complex process degree of electrostatic spinning, cost and output, industrialization promotion has difficulties.
To sum up, although nano-photocatalyst can be fixed on the carrier of fiber-like by these carrying methods, reach the object preparing recyclable photochemical catalyst, and the convenient characteristic being separated and reclaiming after making it that there is catalysis, but there is the deficiencies such as cost is high, preparation process is complicated, and matrix is easily aging in photocatalytic process, nano-photocatalyst and matrix set fastness poor, still cannot meet convenience, cheap, efficient treatment of dyeing wastewater demand, no matter, in output or scale, be all difficult to the demand meeting practical application.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of preparation method of fiber photocatalyst, technique is simple, and be suitable for industrialization, its obtained product has the photocatalytic of lasting stability, is easy to reclaim after using.
For this reason, technical scheme of the present invention is as follows:
A preparation method for fiber photocatalyst, comprises the steps:
1) mixed solvent is prepared: mixed with absolute ethyl alcohol by organic solvent and obtain mixed solvent, wherein organic solvent accounts for 75 ~ 85% of the cumulative volume of described mixed solvent; Described organic solvent is DMF, DMA or dimethyl sulfoxide (DMSO);
2) nano titanium oxide dispersion is prepared: nano titanium oxide is added step 1) be uniformly dispersed in the mixed solvent that obtains, obtain nano titanium oxide dispersion;
Described nano titanium oxide is de-titanium ore crystal type nano TiO 2 or mixed crystal type nanometer titanium dioxide; The described mixed crystal type nanometer titanium dioxide i.e. mixture of de-titanium ore and rutile-phase nano-titanium dioxide;
3) immersion coating: polyacrylonitrile fibre is drawn through step 2) nano titanium oxide dispersion that obtains, enter coagulating bath solidified forming, washing is drying to obtain described fiber photocatalyst thereupon.
Further, described coagulating bath is water or solvent aqueous solution, described solvent be selected from DMF, DMA and dimethyl sulfoxide (DMSO) any one.Preferably, in described solvent aqueous solution, the concentration of solvent is less than or equal to 10wt.%.
Further, step 2) solid content is 0.01 ~ 0.1g/L in the nano titanium oxide dispersion that obtains.
Further, described polyacrylonitrile fibre is 0.5 ~ 1.5m/s by the speed of nano titanium oxide dispersion.
Further, step 3) dry condition is 30 ~ 60 DEG C of vacuum drying.
Further, described nano titanium oxide is nano titanium oxide P25.
The preparation method of fiber photocatalyst provided by the invention adopts common Solution Dispersion-dip-coating method to prepare fiber photocatalyst, obtained product is combined into by business-like nano titanium dioxide photocatalyst and polyacrylonitrile fibre, nano titanium oxide is scattered in mixed solvent by it, simultaneously, this mixed solvent is also the solvent of polyacrylonitrile matrix, like this in the process applying-solidify, nano titanium oxide can be anchored on the surface of polyacrylonitrile fibre, obtain the fiber photocatalyst with stability property, repeatedly can be recycled and reused for photocatalytic process; Also can be processed into the fibre of various form and purposes as required, widen application, preparation technology is simple, with low cost, has great application prospect.
Detailed description of the invention
Below in conjunction with embodiment, technical scheme of the present invention is described.In each embodiment, P25 is nano titanium oxide P25, purchased from Degussa.
Embodiment 1
1) mixed solvent is prepared: be that 85/15 (v/v) prepares mixed solvent by dimethyl sulfoxide (DMSO)/absolute ethyl alcohol according to volume ratio;
2) nano titanium oxide dispersion is prepared: P25 is added step 1) in the mixed solvent prepared, after ultrasonic disperse, obtaining solid content is 0.03g/L nano titanium oxide dispersion;
3) immersion coating: by polyacrylonitrile fibre with the speed of 0.5m/s by step 2) after obtained nano titanium oxide dispersion, enter solidified forming in water, washing is dry; Drying condition is 30 DEG C of vacuum drying 12h, obtains described fiber photocatalyst.
The fiber photocatalyst of the polyacrylonitrile fibre load nano-titanium dioxide that the present embodiment obtains, in the light-catalyzed reaction of ultraviolet light irradiation 1h, to rhdamine B, (wherein, ultraviolet wavelength is 365nm, fluence density 7.6mW/cm
2, concentration is the 6ppm aqueous solution, and fiber consumption is 1g/L) photocatalytic degradation efficiency reach 65.6%, after recycling through three times, it is 57.7% to rhdamine B (concentration is the 6ppm aqueous solution, and fiber consumption is 1g/L).
Embodiment 2
1) mixed solvent is prepared: be that 85/15 (v/v) prepares mixed solvent by dimethyl sulfoxide (DMSO)/absolute ethyl alcohol according to volume ratio;
2) nano titanium oxide dispersion is prepared: P25 is added step 1) in the mixed solvent prepared, after ultrasonic disperse, obtaining solid content is 0.05g/L nano titanium oxide dispersion;
3) immersion coating: by polyacrylonitrile fibre with the speed of 1m/s by step 2) after obtained nano titanium oxide dispersion, enter solidified forming in water, washing is dry thereupon; Drying condition is 40 DEG C of vacuum drying, obtains described fiber photocatalyst.
The fiber photocatalyst of the polyacrylonitrile fibre load nano-titanium dioxide that the present embodiment obtains, in the light-catalyzed reaction of ultraviolet light irradiation 1h, to rhdamine B, (wherein, ultraviolet wavelength is 365nm, fluence density 7.6mW/cm
2rhdamine B concentration is the 6ppm aqueous solution, fiber photocatalyst consumption is 1g/L) photocatalytic degradation efficiency reach 82.5%, after recycling through three times, it reaches 81.4% to the photocatalytic degradation efficiency of rhdamine B (dye strength is the 6ppm aqueous solution, and fiber photocatalyst consumption is 1g/L).
Embodiment 3
1) mixed solvent is prepared: be that 80/20 (v/v) prepares mixed solvent by dimethyl sulfoxide (DMSO)/absolute ethyl alcohol according to volume ratio;
2) nano titanium oxide dispersion is prepared: P25 is added step 1) in the mixed solvent prepared, after ultrasonic disperse, obtaining solid content is 0.01g/L nano titanium oxide dispersion;
3) immersion coating: by polyacrylonitrile fibre with the speed of 0.5m/s by step 2) after obtained nano titanium oxide dispersion, enter solidified forming in water, washing is dry; Drying condition is 45 DEG C of vacuum drying, obtains described fiber photocatalyst.
The fiber photocatalyst of the polyacrylonitrile fibre load nano-titanium dioxide that the present embodiment obtains, in the light-catalyzed reaction of ultraviolet light irradiation 1h, to rhdamine B, (wherein, ultraviolet wavelength is 365nm, fluence density 7.6mW/cm
2dye strength is the 6ppm aqueous solution, fiber photocatalyst consumption is 1g/L) photocatalytic degradation efficiency reach 61.3%, after recycling through three times, it is 42.2% to the photocatalytic degradation efficiency of rhdamine B (dye strength is the 6ppm aqueous solution, and fiber photocatalyst consumption is 1g/L).
Embodiment 4
1) mixed solvent is prepared: be that 75/25 (v/v) prepares mixed solvent by dimethyl sulfoxide (DMSO)/absolute ethyl alcohol according to volume ratio;
2) nano titanium oxide dispersion is prepared: P25 is added step 1) in the mixed solvent prepared, after ultrasonic disperse, obtaining solid content is 0.03g/L nano titanium oxide dispersion;
3) immersion coating: by polyacrylonitrile fibre with the speed of 0.2m/s by step 2) after obtained nano titanium oxide dispersion, enter solidified forming in water, washing is dry; Drying condition is 60 DEG C of vacuum drying, obtains described fiber photocatalyst.
The fiber photocatalyst of the polyacrylonitrile fibre load nano-titanium dioxide that the present embodiment obtains, in the light-catalyzed reaction of ultraviolet light irradiation 1h, to rhdamine B, (wherein, ultraviolet wavelength is 365nm, fluence density 7.6mW/cm
2dye strength is the 6ppm aqueous solution, fiber photocatalyst consumption is 1g/L) photocatalytic degradation efficiency reach 57.2%, after recycling through three times, it is to the photocatalytic degradation efficiency 32.5% of rhdamine B (dye strength is the 6ppm aqueous solution, and fiber photocatalyst consumption is 1g/L).
Embodiment 5
1) mixed solvent is prepared: be that 80/20 (v/v) prepares mixed solvent by dimethyl sulfoxide (DMSO)/absolute ethyl alcohol according to volume ratio;
2) nano titanium oxide dispersion is prepared: P25 is added step 1) in the mixed solvent prepared, after ultrasonic disperse, obtaining solid content is 0.05g/L nano titanium oxide dispersion;
3) immersion coating: by polyacrylonitrile fibre with the speed of 0.2m/s by step 2) after obtained nano titanium oxide dispersion, entering concentration is solidified forming in 8wt.% dimethyl sulphoxide aqueous solution, and washing is dry; Drying condition is 55 DEG C of vacuum drying, obtains described fiber photocatalyst.
The fiber photocatalyst of the polyacrylonitrile fibre load nano-titanium dioxide that the present embodiment obtains, in the light-catalyzed reaction of ultraviolet light irradiation 1h, to rhdamine B, (wherein, ultraviolet wavelength is 365nm, fluence density 7.6mW/cm
2dye strength is the 6ppm aqueous solution, fiber photocatalyst consumption is 1g/L) photocatalytic degradation efficiency reach 56.9%, after recycling through three times, it is to the photocatalytic degradation efficiency 52.9% of rhdamine B (dye strength is the 6ppm aqueous solution, and fiber photocatalyst consumption is 1g/L).
Embodiment 6
1) mixed solvent is prepared: be that 80/20 (v/v) prepares mixed solvent by DMA/absolute ethyl alcohol according to volume ratio;
2) nano titanium oxide dispersion is prepared: P25 is added step 1) in the mixed solvent prepared, after ultrasonic disperse, obtaining solid content is 0.03g/L nano titanium oxide dispersion;
3) immersion coating: by polyacrylonitrile fibre with the speed of 1m/s by step 2) after obtained nano titanium oxide dispersion, entering concentration is solidified forming in 5wt.% dimethylacetamide amine aqueous solution, and washing is dry; Drying condition is 45 DEG C of vacuum drying, obtains described fiber photocatalyst.
The fiber photocatalyst of the polyacrylonitrile fibre load nano-titanium dioxide that the present embodiment obtains, in the light-catalyzed reaction of ultraviolet light irradiation 1h, to rhdamine B, (wherein, ultraviolet wavelength is 365nm, fluence density 7.6mW/cm
2dye strength is the 6ppm aqueous solution, fiber photocatalyst consumption is 1g/L) photocatalytic degradation efficiency reach 55.1%, after recycling through three times, it is to the photocatalytic degradation efficiency 51.3% of rhdamine B (dye strength is the 6ppm aqueous solution, and fiber photocatalyst consumption is 1g/L).
Embodiment 7
1) mixed solvent is prepared: be that 85/15 (v/v) prepares mixed solvent by dimethyl sulfoxide (DMSO)/absolute ethyl alcohol according to volume ratio;
2) nano titanium oxide dispersion is prepared: P25 is added step 1) in the mixed solvent prepared, after ultrasonic disperse, obtaining solid content is 0.01g/L nano titanium oxide dispersion;
3) immersion coating: by polyacrylonitrile fibre with the speed of 0.2m/s by step 2) after obtained nano titanium oxide dispersion, enter solidified forming in water, washing is dry thereupon; Drying condition is 35 DEG C of vacuum drying, obtains described fiber photocatalyst.
The fiber photocatalyst of the polyacrylonitrile fibre load nano-titanium dioxide that the present embodiment obtains, in the light-catalyzed reaction of ultraviolet light irradiation 1h, to rhdamine B, (wherein, ultraviolet wavelength is 365nm, fluence density 7.6mW/cm
2dye strength is the 6ppm aqueous solution, fiber photocatalyst consumption is 1g/L) photocatalytic degradation efficiency reach 34.6%, after recycling through three times, it is to the photocatalytic degradation efficiency 33.5% of rhdamine B (dye strength is the 6ppm aqueous solution, and fiber photocatalyst consumption is 1g/L).
Embodiment 8
1) mixed solvent is prepared: be that 85/15 (v/v) prepares mixed solvent by dimethyl sulfoxide (DMSO)/absolute ethyl alcohol according to volume ratio;
2) nano titanium oxide dispersion is prepared: P25 is added step 1) in the mixed solvent prepared, after ultrasonic disperse, obtaining solid content is 0.05g/L nano titanium oxide dispersion;
3) immersion coating: by polyacrylonitrile fibre with the speed of 0.5m/s by step 2) after obtained nano titanium oxide dispersion, enter solidified forming in water, the dry fiber photocatalyst obtaining primary coating of washing thereupon;
4) secondary coating: by the fiber photocatalyst of primary coating that obtains with the speed of 0.5m/s by step 2) obtained nano titanium oxide dispersion, then curing molding in water is entered, the dry fiber photocatalyst obtaining secondary coating polyacrylonitrile fibre load nano-titanium dioxide of washing.
The fiber photocatalyst of the polyacrylonitrile fibre load nano-titanium dioxide that the present embodiment obtains, in the light-catalyzed reaction of ultraviolet light irradiation 1h, to rhdamine B, (wherein, ultraviolet wavelength is 365nm, fluence density 7.6mW/cm
2dye strength is the 6ppm aqueous solution, fiber photocatalyst consumption is 1g/L) photocatalytic degradation efficiency reach 83.2%, after recycling through three times, it reaches 82.8% to the photocatalytic degradation efficiency of rhdamine B (dye strength is the 6ppm aqueous solution, and fiber photocatalyst consumption is 1g/L); To methylene blue dye, (wherein, ultraviolet wavelength is 365nm, fluence density 7.6mW/cm
2dye strength is the 6ppm aqueous solution, fiber photocatalyst consumption is 1g/L) photocatalytic degradation efficiency reach 95.1%, after recycling through three times, the photocatalytic degradation efficiency of methylene blue dye (dye strength is the 6ppm aqueous solution, and fiber photocatalyst consumption is 1g/L) reaches 94.8%.
Embodiment 9
1) mixed solvent is prepared: be that 85/15 (v/v) prepares mixed solvent by dimethyl sulfoxide (DMSO)/absolute ethyl alcohol according to volume ratio;
2) nano titanium oxide dispersion is prepared: P25 is added step 1) in the mixed solvent prepared, after ultrasonic disperse, obtaining solid content is 0.03g/L nano titanium oxide dispersion;
3) immersion coating: by polyacrylonitrile fibre with the speed of 0.5m/s by step 2) after obtained nano titanium oxide dispersion, enter solidified forming in water, the dry fiber photocatalyst obtaining primary coating of washing thereupon;
4) secondary coating: by the fiber photocatalyst of primary coating that obtains with the speed of 0.5m/s by step 2) obtained nano titanium oxide dispersion, then curing molding in water is entered, the dry fiber photocatalyst obtaining secondary coating polyacrylonitrile fibre load nano-titanium dioxide of washing.
The fiber photocatalyst of the polyacrylonitrile fibre load nano-titanium dioxide that the present embodiment obtains, in the light-catalyzed reaction of ultraviolet light irradiation 1h, to rhdamine B, (wherein, ultraviolet wavelength is 365nm, fluence density 7.6mW/cm
2dye strength is the 6ppm aqueous solution, fiber photocatalyst consumption is 1g/L) photocatalytic degradation efficiency reach 72.5%, after recycling through three times, it is to the photocatalytic degradation efficiency 64.4% of rhdamine B (dye strength is the 6ppm aqueous solution, and fiber photocatalyst consumption is 1g/L).
Claims (8)
1. a preparation method for fiber photocatalyst, is characterized in that comprising the steps:
1) mixed solvent is prepared: mixed with absolute ethyl alcohol by organic solvent and obtain mixed solvent, wherein organic solvent accounts for 75 ~ 85% of the cumulative volume of described mixed solvent; Described organic solvent is DMF, DMA or dimethyl sulfoxide (DMSO);
2) nano titanium oxide dispersion is prepared: nano titanium oxide is added step 1) be uniformly dispersed in the mixed solvent that obtains, obtain nano titanium oxide dispersion;
Described nano titanium oxide is de-titanium ore crystal type nano TiO 2 or mixed crystal type nanometer titanium dioxide; The described mixed crystal type nanometer titanium dioxide i.e. mixture of de-titanium ore and rutile-phase nano-titanium dioxide;
3) immersion coating: polyacrylonitrile fibre is drawn through step 2) nano titanium oxide dispersion that obtains, enter coagulating bath solidified forming, washing is drying to obtain described fiber photocatalyst thereupon.
2. the preparation method of fiber photocatalyst as claimed in claim 1, it is characterized in that: also comprise step 4) fiber photocatalyst that obtains after washing drying is drawn through step 2 again) nano titanium oxide dispersion that obtains, again through coagulating bath solidification, washing drying obtains the fiber photocatalyst after secondary coating.
3. the preparation method of fiber photocatalyst as claimed in claim 1 or 2, is characterized in that: described coagulating bath is water or solvent aqueous solution, described solvent be selected from DMF, DMA and dimethyl sulfoxide (DMSO) any one.
4. the preparation method of fiber photocatalyst as claimed in claim 3, is characterized in that: in described solvent aqueous solution, the concentration of solvent is less than or equal to 10wt.%.
5. the preparation method of fiber photocatalyst as claimed in claim 1 or 2, is characterized in that: step 2) solid content is 0.01 ~ 0.1g/L in the nano titanium oxide dispersion that obtains.
6. the preparation method of fiber photocatalyst as claimed in claim 1 or 2, is characterized in that: described polyacrylonitrile fibre is 0.5 ~ 1.5m/s by the speed of nano titanium oxide dispersion.
7. the preparation method of fiber photocatalyst as claimed in claim 1 or 2, is characterized in that: step 3) dry condition is 30 ~ 60 DEG C of vacuum drying.
8. the preparation method of fiber photocatalyst as claimed in claim 1 or 2, is characterized in that: described nano titanium oxide is nano titanium oxide P25.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107583654A (en) * | 2017-11-03 | 2018-01-16 | 天津工业大学 | The preparation method of nanoporous microballoon with adsorption photochemical catalysis synergy |
| CN108976549A (en) * | 2018-06-25 | 2018-12-11 | 广东格瑞新材料股份有限公司 | A kind of degradable PE composition and preparation method thereof |
| CN109183421A (en) * | 2018-09-20 | 2019-01-11 | 吕莉 | A kind of preparation method of automatically cleaning plastic carpet |
| CN112275325A (en) * | 2020-09-28 | 2021-01-29 | 长春工业大学 | Preparation of cadmium sulfide/titanium dioxide/polyacrylonitrile composite nano material for photocatalysis |
| CN113151923A (en) * | 2021-03-11 | 2021-07-23 | 山东大学 | Polyurethane/titanium dioxide composite fiber, photocatalytic woven device, preparation method and application |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1478928A (en) * | 2003-07-08 | 2004-03-03 | 中国石油化工股份有限公司 | Preparation method of nanometer microgranule modified polyacrylonitrile anti static fiber |
| CN1940151A (en) * | 2005-09-29 | 2007-04-04 | 康那香企业股份有限公司 | Flock containing light catalyst, its production and polluted fluid purification thereby |
| CN103966769A (en) * | 2014-05-07 | 2014-08-06 | 南通大学 | Method for preparing photocatalysis self-cleaning nanometer fiber felt |
-
2015
- 2015-10-19 CN CN201510676076.0A patent/CN105195234B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1478928A (en) * | 2003-07-08 | 2004-03-03 | 中国石油化工股份有限公司 | Preparation method of nanometer microgranule modified polyacrylonitrile anti static fiber |
| CN1940151A (en) * | 2005-09-29 | 2007-04-04 | 康那香企业股份有限公司 | Flock containing light catalyst, its production and polluted fluid purification thereby |
| CN103966769A (en) * | 2014-05-07 | 2014-08-06 | 南通大学 | Method for preparing photocatalysis self-cleaning nanometer fiber felt |
Non-Patent Citations (1)
| Title |
|---|
| 沈翔 等: "聚丙烯腈/二氧化钛杂化纳米活性碳纤维制备与结构变化规律", 《化工进展》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107583654A (en) * | 2017-11-03 | 2018-01-16 | 天津工业大学 | The preparation method of nanoporous microballoon with adsorption photochemical catalysis synergy |
| CN108976549A (en) * | 2018-06-25 | 2018-12-11 | 广东格瑞新材料股份有限公司 | A kind of degradable PE composition and preparation method thereof |
| CN109183421A (en) * | 2018-09-20 | 2019-01-11 | 吕莉 | A kind of preparation method of automatically cleaning plastic carpet |
| CN112275325A (en) * | 2020-09-28 | 2021-01-29 | 长春工业大学 | Preparation of cadmium sulfide/titanium dioxide/polyacrylonitrile composite nano material for photocatalysis |
| CN112275325B (en) * | 2020-09-28 | 2022-06-21 | 长春工业大学 | Preparation of cadmium sulfide/titanium dioxide/polyacrylonitrile composite nano material for photocatalysis |
| CN113151923A (en) * | 2021-03-11 | 2021-07-23 | 山东大学 | Polyurethane/titanium dioxide composite fiber, photocatalytic woven device, preparation method and application |
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