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

Composite photocatalyst as well as preparation method and application thereof

A technology of catalyst and composite light, which is applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve the problems of low catalytic efficiency and single catalytic ability of photocatalysts, achieve low cost and improve degradation Efficiency, enhance the effect of spectral absorption

Active Publication Date: 2021-06-15
浙江洲钜科技有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a composite photocatalyst and its preparation method and application to solve the technical problems of low catalytic efficiency and single catalytic ability of the photocatalyst in the prior art

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
  • Composite photocatalyst as well as preparation method and application thereof
  • Composite photocatalyst as well as preparation method and application thereof
  • Composite photocatalyst as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0027] The second aspect of the embodiment of the present application provides a method for preparing the above-mentioned composite photocatalyst, comprising the following steps:

[0028] S1, the phosphate solution is added to the metavanadate solution and mixed, and concentrated sulfuric acid is added, after the reaction, the molybdate solution and concentrated sulfuric acid are sequentially added to react to obtain the first mixed solution;

[0029] S2, adding diethyl ether to the first mixed solution prepared in step S1 for extraction, obtaining H in the diethyl ether layer 5 PMo 10 V 2 o 40 ;

[0030] S3, template agent and the H prepared in step S2 5 PMo 10 V 2 o 40 Mix to obtain the second mixed solution, add a titanium source to the second mixed solution, and keep the pH value of the solution after adding the titanium source at 1.0 to 2.0, and react to obtain the first precipitate; aging and calcining the first precipitate to obtain Ti 2.5 PMo 10 V 2 o 40 -TiO...

Embodiment 1

[0042] This embodiment provides a composite photocatalyst Ti 2.5 PMo 10 V 2 o 40 -TiO 2 / Ag, which uses mesoporous TiO 2 as carrier, Ti 2.5 PMo 10 V 2 o 40 encapsulated in mesoporous TiO 2 Inside, Ag nanoparticles deposited on mesoporous TiO 2 on the surface. The particle diameter of the Ag nanoparticles was 20 nm.

[0043] The preparation method of the present embodiment composite photocatalyst comprises:

[0044] (1) 24.4g sodium metavanadate was dissolved in 100ml boiling water; 7.1g Na 2 HPO 4 Dissolve in 100ml of water. The prepared Na 2 HPO 4 The solution was added to the sodium metavanadate solution, and after cooling, 5ml of concentrated sulfuric acid was added, and the solution turned red. Subsequently, 121gNaMoO 4 2H 2 O was dissolved in 200ml of aqueous solution and added to the above mixed solution, and then 85ml of concentrated sulfuric acid was added to the above mixed solution under vigorous stirring to react to obtain the first mixed solution...

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
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention provides a composite photocatalyst as well as a preparation method and application thereof. The composite photocatalyst takes mesoporous TiO2 as a carrier, Ti2.5PMo10V2O40 is encapsulated in the mesoporous TiO2, and Ag nanoparticles are deposited on the surface of the mesoporous TiO2. The composite photocatalyst improves spectral absorption, promotes separation of carriers, can greatly improve the degradation efficiency of pollutants, can degrade various pollutants, has degradation activity on main components of pesticides, antibiotics, heavy metal ions and dyes, and has a potential application prospect. The preparation method of the composite photocatalyst provided by the invention is simple in process, environment-friendly and low in cost.

Description

technical field [0001] The invention relates to the technical field of nanomaterial preparation, in particular to a composite photocatalyst and its preparation method and application. Background technique [0002] At present, water resources are in a state of tension, and it is considered a feasible way to purify sewage and waste water to obtain clean water resources. Halogenated phenols are one of the toxic and harmful pollutants in the water environment, which mainly comes from the widespread use of pesticides, fungicides and herbicides. The presence of even small amounts of halogenated phenols in water is cause for concern because of their high toxicity and serious hazards to humans and wildlife. There are also pollutants such as bisphenol A, tetracycline, dyes and heavy metals in sewage and wastewater, which also pose a serious threat to the health of humans and wild animals. Currently, photocatalysis is considered as a promising method for wastewater purification and ...

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): B01J27/199B01J35/00C02F1/30C02F101/22C02F101/30C02F101/38C02F101/34C02F101/36
CPCB01J27/199C02F1/30C02F2305/10C02F2101/22C02F2101/36C02F2101/345C02F2101/308C02F2101/38B01J35/393B01J35/39Y02W10/37
Inventor 赵钊赵鑫宇谭华桥
Owner 浙江洲钜科技有限公司
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