Preparation method and application of photocatalytic functional fabric

A functional fabric and photocatalytic technology, which is applied in the field of preparation of photocatalytic functional fabrics, can solve the problems of reduced photocatalytic activity, difficulty in recycling, easy precipitation of photocatalytic materials, etc., and achieve good economic benefits

Active Publication Date: 2018-09-14
JIANGSU TANGWEAR IND
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Problems solved by technology

Bismuth vanadate is a new type of photocatalytic material, although it has a wide range of visible light response, but BiVO 4 The generated photogenerated electron-hole pairs are easy to recombine on the bulk phase and surface of the catalys

Method used

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  • Preparation method and application of photocatalytic functional fabric
  • Preparation method and application of photocatalytic functional fabric
  • Preparation method and application of photocatalytic functional fabric

Examples

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Example Embodiment

[0016] Example

[0017] A method for preparing a photocatalytic functional fabric, comprising the following steps:

[0018] (1) Fabric pretreatment: boil the deboiled and bleached cotton fabric in hot water at 90°C for 10 minutes to remove the remaining water-soluble impurities on the fabric, take it out and dry it, immerse the fabric in acetone and ultrasonically for 30 minutes to further remove the surface of the fabric. Residual impurities were washed with distilled water for 3 times, and dried for later use.

[0019] (2) In situ growth of ZIF-8 on the fabric: 2.05 g of 2-methylimidazole was placed in 250 mL of methanol solution, and treated with ultrasound for 10 min to obtain A solution. Put 3.67g of zinc nitrate hexahydrate in 250mL of methanol solution, and use ultrasonic treatment for 10min to obtain B solution. Then soak 0.5g cotton fabric in solution A, treat with ultrasonic waves for 30min, then slowly add solution B dropwise to solution A soaked in cotton fabric,...

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Abstract

The invention provides a photocatalytic functional fabric and a preparation method thereof. The preparation method comprises the following steps: firstly treating zeolite imidazole skeleton material (ZIF-8) onto a fabric, then loading bismuth vanadate (BiVO4) onto the fabric treated by the ZIF-8 by adopting an in-situ growth method, and preparing the photocatalytic functional fabric. The functional fabric can efficiently and catalytically degrade organic pollutants under the radiation of visible light and can be used for treating the printing and dyeing waste water and purifying the air. The preparation method is simple in preparation process. The prepared photocatalytic functional fabric has the advantages of good adsorption performance, high catalytic efficiency, good stability, reusability and the like. The photocatalytic degradation rate for active black KN-B can reach 85 percent or above, and the photocatalytic degradation rate for the active black KN-B after being reused for three times can be still kept at 65 percent or higher. The degradation rate for formaldehyde in the air can reach 87 percent or above.

Description

technical field [0001] The invention belongs to the technical field of photocatalysts, and relates to a preparation method and application of photocatalytic functional fabrics, in particular to growing ZIF-8 and BiVO in situ 4 A functional fabric with good adsorption performance and catalytic decomposition of harmful substances under visible light is obtained. Background technique [0002] With rapid economic development and accelerated urbanization, global environmental pollution and energy shortages have increasingly become major challenges facing mankind. Environmental governance and the utilization of solar energy have become priority research directions for domestic and foreign scientific and technological workers. Printing and dyeing wastewater is currently one of the most difficult industrial wastewater to treat because of its high content of organic pollutants, deep color, complex components, and residual dyes, additives, slurries, and inorganic salts; the types of i...

Claims

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Application Information

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IPC IPC(8): D06M11/47D06M10/08D06M10/06D06B3/10D06B13/00C02F1/30B01D53/86B01D53/72C02F101/30D06M101/06
CPCB01D53/8668B01D2257/70B01D2258/06C02F1/30C02F2101/308C02F2305/10D06B3/10D06B13/00D06M10/06D06M10/08D06M11/47D06M2101/06
Inventor 王春梅蓝舟瞿建刚
Owner JIANGSU TANGWEAR IND
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