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

Strontium antimonate photocatalyst and preparation and application thereof

A catalyst, strontium phototechnology, applied in the field of environmental pollution control, can solve the problems of low efficiency of photocatalysis technology, achieve high quantum efficiency, high activity stability, and significant economic benefits

Inactive Publication Date: 2017-02-15
FUZHOU UNIV
View PDF2 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a strontium antimonate photocatalyst and its preparation and application for the problem of low efficiency of the existing photocatalytic technology

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
  • Strontium antimonate photocatalyst and preparation and application thereof
  • Strontium antimonate photocatalyst and preparation and application thereof
  • Strontium antimonate photocatalyst and preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A preparation method of strontium antimonate photocatalyst, comprising the following steps:

[0031] Dissolve potassium pyroantimonate in boiling water to prepare a solution, named solution A, and its concentration is 0.1 mol L -1 ; Dissolve strontium chloride in deionized water to form a solution, named solution B, with a concentration of 0.125 mol L -1 ; Take 25 mL of solution A, and slowly drop it into 10 mL of solution B; after the dropwise addition, add 35 mL of water to dilute; stir the suspension at room temperature for 12 hours, adjust the pH value of the solution to 8; The solution was transferred into a 100 mL reactor and heated at 180°C for 8 hours to fully crystallize the sample; the cooled sample was centrifugally washed and dried at 80°C; the dried sample was pressed into tablets and sieved with 50-70 mesh to obtain Strontium antimonate photocatalyst, the specific surface area of ​​the photocatalyst is 50-250 m 2 / g, the grain size is 2-56 nm.

[0032] ...

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

PropertyMeasurementUnit
wavelengthaaaaaaaaaa
specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention relates to the technical field of environmental pollution control, and more particularly to a strontium antimonate photocatalyst and a preparation and application thereof. The molecular formula of the strontium antimonate photocatalyst is HxSrySbO3O'z, wherein 0<=x, 0<y<=1 and 0<=z<=0.5. The strontium antimonate photocatalyst is obtained by hydrothermal reaction, the specific surface area is 50-250 m2 / g, the grain size is 2-56 nm and the strontium antimonate photocatalyst has the advantages of high conversion rate, high quantum efficiency and high activity stability. Under the irradiation of ultraviolet light, the strontium antimonate photocatalyst can be used for catalyzing and degrading organic pollutants in waste water and exhaust gas, and can also be used for photodegradation of water.

Description

technical field [0001] The invention belongs to the technical field of environmental pollution control, and in particular relates to a strontium antimonate photocatalyst and its preparation and application. Background technique [0002] Photocatalytic oxidation-reduction technology has a wide application background in environmental protection, clean energy and new materials. However, photocatalysts represented by titanium dioxide semiconductors have several key scientific and technical problems, such as low quantum efficiency (~4%) and low solar energy utilization, which greatly restrict their industrial applications. In order to improve the efficiency of photocatalysts and photocatalytic processes, TiO 2 Most of the research on the modification of photocatalysts to improve quantum efficiency focuses on transition metal ion doping, noble metal surface deposition, compound semiconductors, etc.; various external fields, such as low-frequency electric fields, microwave fields,...

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 Applications(China)
IPC IPC(8): B01J23/18C01G30/02B01D53/86B01D53/44B01D53/72C02F1/32C02F101/30C02F101/32C02F101/38C01B3/04
CPCB01D53/8668B01D53/8687C01B3/042C01G30/023C02F1/32B01J23/18B01J35/004C02F2101/32C02F2101/30C02F2101/38C02F2305/10B01D2259/804B01D2255/802Y02W10/37Y02E60/36
Inventor 李旦振邵宇陈静付贤智
Owner FUZHOU UNIV
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