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Preparation method of self-cleaning surface with photocatalytic synergistic effect

A synergistic, self-cleaning technology, applied in chemical instruments and methods, nanotechnology for materials and surface science, physical/chemical process catalysts, etc., can solve the problems of reducing photocatalytic efficiency and existing problems of pure ZnO, and achieve Excellent anti-fouling performance, low reaction temperature, and remarkable photocatalytic performance

Inactive Publication Date: 2019-12-24
江苏巨珩新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, pure ZnO still has problems
The rapid recombination of its photogenerated electron-hole pairs reduces the photocatalytic efficiency

Method used

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  • Preparation method of self-cleaning surface with photocatalytic synergistic effect
  • Preparation method of self-cleaning surface with photocatalytic synergistic effect
  • Preparation method of self-cleaning surface with photocatalytic synergistic effect

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] according to figure 1 The specific steps of the preparation method of a self-cleaning surface with a photocatalytic synergistic effect shown are as follows:

[0030] Preparation of S1 nano-ZnO: After polishing and cleaning the zinc sheet, place it in a Teflon-lined stainless steel reaction kettle filled with a hydrothermal reaction solution for hydrothermal reaction, then wash and dry the product with deionized water, and then place Annealing in a muffle furnace can prepare flower-like nano-ZnO.

[0031] S2 Preparation of composite nano-ZnO / CdS: Mix the flower-shaped nano-ZnO prepared in step S2 with the chemical bath deposition reaction solution to carry out chemical bath deposition reaction to obtain composite nano-ZnO / CdS;

[0032] S3 Preparation of a self-cleaning surface with a photocatalytic synergistic effect: Mix the composite nano-ZnO / CdS prepared in step S2 and stearic acid ethanol solution to obtain the modified reaction, wash and dry after the reaction to o...

Embodiment 2

[0042] according to figure 1 The specific steps of the preparation method of a self-cleaning surface with a photocatalytic synergistic effect shown are as follows:

[0043] Preparation of S1 nano-ZnO: After polishing and cleaning the zinc sheet, place it in a Teflon-lined stainless steel reaction kettle filled with a hydrothermal reaction solution for hydrothermal reaction, then wash and dry the product with deionized water, and then place Annealing in a muffle furnace can prepare flower-like nano-ZnO.

[0044] S2 Preparation of composite nano-ZnO / CdS: Mix the flower-shaped nano-ZnO prepared in step S2 with the chemical bath deposition reaction solution to carry out chemical bath deposition reaction to obtain composite nano-ZnO / CdS;

[0045] S3 Preparation of a self-cleaning surface with a photocatalytic synergistic effect: Mix the composite nano-ZnO / CdS prepared in step S2 and stearic acid ethanol solution to obtain the modified reaction, wash and dry after the reaction to o...

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Abstract

The invention discloses a preparation method of a self-cleaning surface with a photocatalysis synergistic effect. The preparation method comprises the following steps: 1) preparation of nano ZnO: growing a ZnO nano structure on a zinc sheet by using a hydrothermal method; 2) preparation of composite nano ZnO / CdS: compounding CdS on the prepared ZnO nano structure by adopting a chemical bath deposition method to obtain the composite nano ZnO / CdS; 3) super-hydrophobic modification: modifying stearic acid on the obtained nano-structure by an impregnation method to make the surface super-hydrophobic. The self-cleaning surface with the photocatalysis synergistic effect can be obtained through the three steps. The prepared self-cleaning surface has excellent anti-fouling performance, and a photocatalysis mechanism of the self-cleaning surface has a synergistic enhancement effect on degradation of organic pollutants on the surface and maintenance of self-cleaning capacity.

Description

technical field [0001] The invention belongs to the field of composite material preparation, and in particular relates to a method for preparing a self-cleaning surface with a photocatalytic synergistic effect. Background technique [0002] Hydrophobicity on solid surfaces has many important applications, such as self-cleaning, low drag, oil-water separation, and antifouling, etc. In nature, there are many plants, insects and animals with superhydrophobic ability, for example, lotus leaves, butterflies, roses, etc., which can repel water and liquids with low surface tension. In recent years, the development of self-cleaning technology inspired by natural materials has become a research hotspot, which can be widely used in many fields, such as the construction field or glass cleaning in the automotive industry, textiles and solar panels. The superhydrophobic surface removes surface contamination through the rolling action of water droplets, which is one of the strategies to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G11/02C01G9/02B82Y40/00B82Y30/00B01J27/04
CPCC01G11/02C01G9/02B82Y40/00B82Y30/00B01J27/04C01P2004/84C01P2002/72C01P2004/03C01P2004/30B01J35/39
Inventor 王燕陈玉英
Owner 江苏巨珩新材料科技有限公司
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