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Preparation method of photocatalytic material BiOBr/ZnSn(OH)6@carbon fiber cloth

A photocatalytic material and carbon fiber cloth technology, which can be used in catalyst activation/preparation, chemical instruments and methods, chemical/physical processes, etc., and can solve problems such as difficulty in recycling photocatalytic materials

Inactive Publication Date: 2020-10-09
HEBEI NORMAL UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the technical problem of difficult recovery of existing photocatalytic materials, thereby providing a photocatalytic material BiOBr / ZnSn(OH) 6 Preparation method of @ carbon fiber cloth

Method used

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  • Preparation method of photocatalytic material BiOBr/ZnSn(OH)6@carbon fiber cloth
  • Preparation method of photocatalytic material BiOBr/ZnSn(OH)6@carbon fiber cloth
  • Preparation method of photocatalytic material BiOBr/ZnSn(OH)6@carbon fiber cloth

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: the photocatalytic material BiOBr / ZnSn(OH) of the present embodiment 6 The preparation method of @carbon fiber cloth is carried out according to the following steps:

[0025] (1) Pretreatment of carbon fiber cloth

[0026] Cut the carbon fiber cloth into small pieces of 4×4cm. The prepared mixed solution of water, ethanol, and acetone (the volume ratio of the three is 1:1:1) was ultrasonically treated for 30 minutes to remove the oily substances on the surface of the carbon fiber cloth. Put the carbon fiber cloth into aqua regia and soak for 24 hours to remove impurities such as metal and amorphous carbon on the surface of the carbon fiber cloth. The carbon fiber cloth was cleaned with deionized water and absolute ethanol, and dried in a blast drying oven for 4 hours at a temperature of 60 °C.

[0027] (2)ZnSn(OH) 6 @Preparation of carbon fiber cloth

[0028] 1.75g ​​SnCl 4 ·5H 2 O and 0.68g ZnCl 2 Add 25mL of deionized water and stir to dissolve; ...

Embodiment 2

[0031] Embodiment 2: the photocatalytic material BiOBr / ZnSn(OH) of the present embodiment 6 The preparation method of @carbon fiber cloth is carried out according to the following steps:

[0032] (1) carbon fiber cloth pretreatment, the same as the first step of embodiment 1.

[0033] (2) Preparation of BiOBr@carbon fiber cloth

[0034] Weigh 0.485g Bi(NO 3 ) 3 ·5H 2 O and 0.357g KBr were dissolved in 40mL of ethylene glycol; the magnetic stirrer was continuously stirred for 30min; close to the bottom), static treatment for 30min; put the reaction kettle into a forced air drying oven for 12h at a temperature of 160°C. From figure 2 It can be seen from the scanning electron microscope image that the BiOBr is evenly distributed on the carbon fiber cloth, and the BiOBr is flower-shaped.

[0035] (3) Photocatalysis experiment

[0036] The catalytic performance of the sample is obtained by measuring the absorbance of the liquid. The degradation rate of BiOBr@carbon fiber cl...

Embodiment 3

[0037] Embodiment 3: the photocatalytic material BiOBr / ZnSn(OH) of the present embodiment 6 The preparation method of @carbon fiber cloth is carried out according to the following steps:

[0038] (1) carbon fiber cloth pretreatment, the steps are the same as the first step of embodiment 1.

[0039] (2)ZnSn(OH) 6 @ The preparation of carbon fiber cloth, the steps are the same as the second step of Example 1.

[0040] (3) BiOBr / ZnSn(OH) 6 @Preparation of carbon fiber cloth

[0041] Weigh 0.820g Bi(NO 3 ) 3 ·5H 2 O and 0.607g KBr were dissolved in 40mL of ethylene glycol, and magnetically stirred for 30min to form a mixed solution; ZnSn(OH) 6 @Carbon fiber cloth and the mixed solution are put into the reaction kettle together for hydrothermal reaction at a temperature of 160°C for 12 hours. From Figure 4 It can be seen from the XRD data that pure BiOBr@ZnSn(OH) was successfully synthesized 6 composite material. From Figure 4 It can be seen that the successfully synt...

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Abstract

The invention discloses a preparation method of a photocatalytic material BiOBr / ZnSn(OH)6@carbon fiber cloth, and relates to a preparation method of a photocatalytic material. The invention aims to solve the technical problem that the existing photocatalytic material is difficult to recover. The method comprises the following steps: putting a carbon fiber cloth into a mixed solution of water, ethanol and acetone for ultrasonic treatment, soaking the carbon fiber cloth in aqua regia for 24 hours, washing, drying, preparing SnCl4.5H2O and ZnCl2 into a solution, adjusting the pH value, mixing thesolutions in an isopyknic manner, putting the carbon fiber cloth into the mixture, standing for 6 hours, taking out, washing and drying to obtain ZnSn(OH)6 carbon fiber cloth, dissolving Bi(NO3)3.5H2O, stirring and mixing with a bromine-containing salt solution, putting the ZnSn(OH)6 carbon fiber cloth into the mixed solution in a hydrothermal reaction kettle for reaction, and washing and dryingto obtain the BiOBr / ZnSn(OH)6 carbon fiber cloth. The preparation method is used in the field of photocatalysis.

Description

technical field [0001] The invention relates to a photocatalytic material BiOBr / ZnSn(OH) 6 The preparation method of @carbon fiber cloth. Background technique [0002] The problem of environmental pollution is a major problem facing the moment, and photocatalytic technology plays an important role in solving this problem. Semiconductor photocatalytic technology has the advantages of high efficiency, energy saving, high feasibility, and avoidance of secondary pollution. Therefore, this technology has attracted much attention in controlling pollution and purifying the environment. In the field of photocatalysis, due to the ZnSn(OH) 6 The abundant hydroxyl groups on the surface are easy to form strong oxidizing hydroxyl radicals with photogenerated holes in the catalytic reaction, and ZnSn(OH) 6 The special energy band structure determines that the photogenerated electron-hole has a strong redox ability, so it has great application potential in controlling environmental poll...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/06B01J23/14B01J21/18B01J35/06B01J35/08B01J37/10C02F1/30
CPCB01J27/06B01J23/14B01J21/18B01J37/10C02F1/30C02F2305/10C02F2101/308B01J35/58B01J35/51B01J35/39
Inventor 张志伟宋爱君鲁勖琳
Owner HEBEI NORMAL UNIVERSITY OF SCIENCE AND TECHNOLOGY
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