Nanoparticle photocatalysis board, its preparation method and application thereof

A nanoparticle and catalytic plate technology, which is applied in the direction of catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve problems such as inability to guarantee anatase TiO2, low photocatalytic activity, and limited substrate selection , to achieve the effects of low production cost, low particle desorption rate, and improved production efficiency

Inactive Publication Date: 2012-06-27
YUNNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process conditions of PVD or PECVD are harsh, and the preparation cost is also high; TiO prepared by sol sintering method 2 Thin film, because anatase TiO cannot be guaranteed 2 , and agglomeration is easy to occur, resulting in low photocatalytic activity; the temperature required for pyrolysis is too high, there are restrictions on the choice of substrates, and the cost is also high

Method used

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  • Nanoparticle photocatalysis board, its preparation method and application thereof
  • Nanoparticle photocatalysis board, its preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment approach

[0018] The photosensitive nanoparticle coating 1 is TiO 2 or ZnO nanoparticle coating.

[0019] The substrate 3 is a corrosion-resistant rough surface plate, which can be selected from frosted glass plate, rough stainless steel plate or foamed aluminum plate. In particular, the frosted glass plate as the substrate 3 has low cost, rough surface, large effective area, and is easy to be made into different shapes. The activity of the material itself is low, and it is not easy to react with the environment, which improves the stability of the photocatalytic plate. Substrates made of other corrosion-resistant materials can also achieve the purpose of the present invention.

[0020] The curing is UV glue curing.

[0021] The preparation method of the nanoparticle photocatalytic plate of the present invention comprises the following steps:

[0022] A. Dry the substrate 3 after ultrasonic cleaning;

[0023] B. Evenly apply light-curable adhesive on the cleaned substrate 3 to form ...

Embodiment 1

[0033] Use the frosted glass plate as the substrate 3 , ultrasonically clean and dry it for later use; dilute the UV curing adhesive with 70% alcohol to make a UV curing adhesive solution with a volume ratio of 5%; apply the UV curing adhesive solution evenly on the ground glass plate in a dark room Make a UV curable rubber sheet, dry it with hot air; then in a dark room, put TiO 2 The nanoparticles are evenly sprayed onto the UV-curable plastic sheet by an electrostatic powder sprayer, and then placed in an ultraviolet light environment for curing, which is the photocatalytic sheet of the present invention.

Embodiment 2

[0035] Use a rough stainless steel plate as the substrate 3, ultrasonically clean and dry it for later use; dilute the UV curing glue with 95% alcohol to make a UV curing glue solution with a volume ratio of 4%; apply the UV curing glue solution evenly on the rough surface in a dark room Unembroidered steel plate made of UV-cured rubber sheet, dry naturally; then in the dark room, the TiO 2 The nanoparticles are evenly sprayed onto the UV-curable rubber sheet with an electrostatic powder sprayer, and then placed in an ultraviolet light environment for curing to obtain a photocatalytic sheet.

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Abstract

The invention provides a nanoparticle photocatalysis board, its preparation method and application thereof. The nanoparticle photocatalysis board comprises a substrate and a photosensitive nanoparticle coating that is cured on the substrate. The preparation method consists of: subjecting the substrate to ultrasonic cleaning and drying it in the air, and applying a light curing adhesive uniformly in a darkroom environment, then conducting drying treatment so as to obtain a light curing rubber board; spraying the photosensitive nanoparticles on the light curing rubber board uniformly, then placing it in an ultraviolet light environment for curing, thus obtaining the nanoparticle photocatalysis board, which can be applied in removing residual washing agents in washed clothes. The photocatalysis board provided in the invention has the advantages of low preparation cost, low particle desorption rate, current scour resistance, and no loss of the activity of the nanoparticles. The method of the invention is simple and operated at normal temperature, and it reduces the cost as well as improves production efficiency.

Description

technical field [0001] The invention belongs to the technical field of photosensitive materials and applications, in particular to a TiO-based 2 And ZnO nanoparticle photocatalytic plate and its preparation method and application. Background technique [0002] TiO 2 And ZnO nanoparticles have large specific surface area, high surface activity, non-toxic, and have high thermal stability, chemical stability and excellent photocatalytic properties, and are widely used in air purification, sewage treatment, deodorization and antibacterial environmental protection, etc. field. TiO 2 Under the excitation of ultraviolet light, ZnO nanoparticles and ZnO nanoparticles form electron-hole pairs, and these electrons and holes can migrate to the particle surface and undergo redox reactions with the substances adsorbed on the surface. This property can be used in a wide range of applications, such as decomposing organic pollutants and removing detergent residues from fabrics. TiO 2 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J21/06B01J23/06B01J35/02B01J37/025B32B33/00B32B37/12C11D3/12C11D7/20C11D9/18
Inventor 刘铸肖辉陈泉
Owner YUNNAN UNIV
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