Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method and application of glass fiber cloth loaded W/BiVO4 photocatalyst

A technology of glass fiber cloth and photocatalyst, which is applied in the field of photocatalyst preparation and application, can solve the problems of blocking light, reducing photocatalyst degradation efficiency, poor light transparency, etc., and achieves simple preparation process, improved photocatalytic efficiency, and low production cost Effect

Pending Publication Date: 2020-10-09
HEFEI UNIV
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Commonly used photocatalyst carriers include alumina, silica gel, activated carbon, and some natural products such as zeolite, diatomaceous earth, etc. Their common disadvantage is that the transparency of light is poor. When the photocatalyst is combined with the carrier, the carrier will block part of the light, seriously Reduce photocatalyst degradation efficiency

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method and application of glass fiber cloth loaded W/BiVO4 photocatalyst
  • Preparation method and application of glass fiber cloth loaded W/BiVO4 photocatalyst
  • Preparation method and application of glass fiber cloth loaded W/BiVO4 photocatalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A glass fiber cloth loaded W / BiVO 4 The preparation method of photocatalyst, firstly, glass fiber cloth is pretreated to remove surface coating, makes its surface rough, is conducive to surface loading photocatalyst; Then utilizes silane coupling agent to carry out surface modification to glass fiber cloth, finally, in glass Fiber Cloth Surface Loading W / BiVO 4 catalyst of light. Specific steps are as follows:

[0038] ①Pretreatment of glass fiber cloth

[0039] (1) cleaning

[0040] Prepare a 5% aqueous solution of household detergent, heat it to 80°C, soak the glass fiber cloth in it, take it out after soaking for 2 hours, rinse it with deionized water, and dry it.

[0041] (2) Calcination

[0042] Arrange the above-mentioned dried glass fibers in a muffle furnace, raise from room temperature to 350°C at a rate of 5°C / min, keep warm for 3h, cool naturally, take out, and set aside.

[0043] (3) surface corrosion

[0044] Soak the calcined glass fiber cloth in HF...

Embodiment 2

[0073] A glass fiber cloth loaded W / BiVO 4 The preparation method of photocatalyst, the steps are as follows:

[0074] ①Pretreatment of glass fiber cloth

[0075] (1) cleaning

[0076] Prepare a 2% aqueous solution of household detergent, heat it to 90°C, immerse the glass fiber cloth in it, soak it for 1 hour, take it out, rinse it with deionized water, and dry it.

[0077] (2) Calcination

[0078] Arrange the above-mentioned dried glass fibers in a muffle furnace, raise from room temperature to 330°C at 8°C / min, keep warm for 5h, cool naturally, take out, and set aside.

[0079] (3) surface corrosion

[0080] Soak the calcined glass fiber cloth in 1% HF solution for 30 minutes, take it out, rinse it with deionized water, dry it, and set it aside.

[0081] ② Surface modification of glass fiber cloth with silane coupling agent

[0082] (1) Silane coupling agent mixed solution configuration

[0083] According to the mass ratio of silane coupling agent KH550: ethanol: wat...

Embodiment 3

[0092] A glass fiber cloth loaded W / BiVO 4 The preparation method of photocatalyst, the steps are as follows:

[0093] ①Pretreatment of glass fiber cloth

[0094] (1) cleaning

[0095] Prepare an 8% aqueous solution of household detergent, heat it to 70°C, soak the glass fiber cloth in it, take it out after soaking for 5 hours, rinse it with deionized water, and dry it.

[0096] (2) Calcination

[0097] Arrange the above-mentioned dried glass fiber in a muffle furnace, raise it from room temperature to 380°C at a rate of 3°C / min, keep it warm for 2h, cool naturally, take it out, and set it aside for later use.

[0098] (3) surface corrosion

[0099] Soak the calcined glass fiber cloth in 4% HF solution for 10 minutes, take it out, rinse it with deionized water, dry it, and set it aside.

[0100] ② Surface modification of glass fiber cloth with silane coupling agent

[0101] (1) Silane coupling agent mixed solution configuration

[0102] According to the mass ratio of sila...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a preparation method and application of a glass fiber cloth loaded W / BiVO4 photocatalyst, and belongs to the technical field of photocatalyst preparation and application. The method comprises the following steps that: glass fiber cloth is pretreated, so that a surface coating can be removed, and the surface of the glass fiber cloth is roughened, and photocatalyst loading onthe surface is facilitated; a silane coupling agent is used for carrying out surface modification on the glass fiber cloth; and a W / BiVO4 photocatalyst is loaded on the surface of the glass fiber cloth. The photocatalyst is uniformly dispersed and not accumulated through loading of the glass fiber cloth, and the light receiving area of the photocatalyst is increased, so that the photocatalytic efficiency of the photocatalyst per unit mass is improved. The glass fiber has good light transmission performance; and after the glass fiber is combined with the photocatalyst, the photocatalytic performance cannot be reduced due to light shielding. And meanwhile, the glass fiber cloth can be used for immobilizing the photocatalyst, so that the photocatalyst is not lost along with treated liquid, and the photocatalyst is favorably recycled.

Description

technical field [0001] The invention belongs to the technical field of photocatalyst preparation and application, in particular to a glass fiber cloth loaded W / BiVO 4 Preparation method and application of photocatalyst. Background technique [0002] The rapid development of industrial economy has brought serious environmental pollution problems, which have seriously restricted the sustainable development of economy and society and endangered human health. A large amount of wastewater discharged by the printing and dyeing industry has the characteristics of high chroma, high COD, and high chemical stability. It is difficult for the traditional microbial degradation process to meet the stable and standard discharge after the standard is raised. [0003] Photocatalytic oxidation is a novel advanced oxidation technology that can completely decompose harmful substances in organic wastewater into H 2 O.CO 2 and other harmless substances, eliminating secondary pollution. Semico...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B01J31/02B01J23/30B01J23/22C07F7/18C09C1/30C09C3/12C02F1/30
CPCB01J31/0274B01J31/0275B01J23/30B01J23/22B01J23/002C07F7/1804C07F7/188C09C1/3081C09C3/12C02F1/30C07B2200/11C02F2305/10C02F2101/308B01J35/23B01J35/399B01J35/39
Inventor 杨本宏费乾峰王臣
Owner HEFEI UNIV