Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Photocatalyst for degrading organic pollutant and preparation method thereof

A technology of organic pollutants and photocatalysts, applied in physical/chemical process catalysts, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc. Problems such as limitations in the scope of use, to achieve high commercial application prospects, high visible light degradation activity, and the effect of not harsh application conditions

Inactive Publication Date: 2010-08-25
ZHEJIANG NORMAL UNIVERSITY
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are: due to the wide band gap (3.2eV) of titanium dioxide, the light absorption range is limited to the ultraviolet region, and the utilization rate of solar energy is too low (about 4%), which limits its large-scale application
Photosensitized catalysts are limited by the scope of use

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
  • Photocatalyst for degrading organic pollutant and preparation method thereof
  • Photocatalyst for degrading organic pollutant and preparation method thereof
  • Photocatalyst for degrading organic pollutant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

Embodiment 2

Embodiment 3

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 relates to a photocatalyst for degrading organic pollutants and a preparation method thereof. The photocatalyst is vanadium-yttrium composite oxide, a general formula of chemical composition is VxY1O(2.5x+1.5), and x is vanadium-yttrium mol ratio, and is more than or equal to 0.3 and is less than or equal to 3.5. The preparation method for the photocatalyst comprises the following steps that: a yttrium nitrate solution and an ammonium metavanadate solution are mixed to generate a precipitate under the condition of stirring according to the vanadium-yttrium mol ratio; and the precipitate is aged through the stirring and then is evaporated to remove moisture, an obtained solid is dried and finally is baked at a temperature of between 400 and 600 DEG C, and a finished photocatalyst product is obtained after the cooling. The invention also relates to a catalyst for precious metal Pt supported by V1.5Y1O5.25 composite oxide and a preparation method thereof. The photocatalyst has the advantages of simple preparation method and low cost, good visible light degradation property to the organic pollutants, and higher commercial application prospect.

Description

technical field The invention relates to a photocatalyst responsive to visible light, in particular to a photocatalyst for degrading organic pollutants and a preparation method thereof. Background technique In the 20th century, the rapid economic growth and large-scale industrial production brought negative effects——the worsening of the earth's ecological environment. Pesticides, alkylphenols and other environmental hormones and odorous substances in water and air seriously threaten people's safe and comfortable life. At present, the governments of various countries have been fully aware of the seriousness of environmental problems, and have elevated environmental purification and energy development to a strategic level that is related to the survival and development of the country. Therefore, research and technology development in this area have attracted much attention. Among many environmental pollution control technologies, photocatalytic technology is a brand-new "gree...

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
Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/22B01J23/648A62D3/17A62D101/20
Inventor 何益明赵雷洪吴瑛吴新涛盛天录
Owner ZHEJIANG NORMAL UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com