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

Self-supporting AgI (silver iodide) composite photocatalyst material, preparation method and application thereof

A composite light, self-supporting technology, applied in chemical instruments and methods, organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, etc., can solve the problem of no self-supporting AgI composite photocatalyst application, etc. To achieve the effect of easy and simple separation and reuse

Active Publication Date: 2017-06-30
CHINA UNIV OF PETROLEUM (EAST CHINA)
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a self-supporting AgI composite photocatalyst material and its preparation method and application, which solves the problem that there is no current application of self-supporting AgI composite photocatalysts

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
  • Self-supporting AgI (silver iodide) composite photocatalyst material, preparation method and application thereof
  • Self-supporting AgI (silver iodide) composite photocatalyst material, preparation method and application thereof
  • Self-supporting AgI (silver iodide) composite photocatalyst material, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0037] The preparation method of above-mentioned self-supporting AgI composite photocatalyst comprises the following steps:

[0038] (1) Prepare PAN nanofiber membrane by electrospinning;

[0039] (2) Prepare PAN / Ag composite nanofiber membrane by electroless plating process;

[0040] (3) The PAN / AgI composite nanofibrous membrane is prepared by the combination reaction of elemental silver and elemental iodine.

Embodiment 1

[0042] Preparation of self-supporting AgI composite photocatalyst

[0043] (1) Preparation of PAN / Ag composite nanofibers: prepare PAN / DMF solution with a mass fraction of 5%-10%, and prepare PAN nanofiber membranes by electrospinning; equip 0.1mol / L NaBH 4 solution, soak the fiber membrane; equipped with solution A: 0.6gAgNO 3 , 30ml H 2 O, 1.5ml NH 3 h 2 O; also equipped with B solution: 3g sodium potassium tartrate, 30ml H 2 O: Immerse the PAN nanofiber membrane in the A solution, add the B solution into the A solution, stir and react for 1-3h, take out the PAN / Ag nanofiber membrane, wash it with deionized water and ethanol for 3 times, and dry it;

[0044] (2) Equip an elemental iodine / ethanol solution with a concentration of 0.005mol / L, immerse the PAN / Ag composite nanofiber membrane in 25ml, 50ml, 75ml, and 100ml of the solution respectively, stir for 12h, take out the fiber membrane and rinse with deionized water Wash with ethanol for 3 times and dry to obtain a se...

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 provides a self-supporting AgI composite photocatalyst material. The material is a self-supporting flexible fiber membrane. The morphology is that AgI nanoparticles are loaded onto the polyacrylonitrile nanofiber surface. The invention also provides a preparation method and application of the material. The polyacrylonitrile nanofiber membrane prepared by electrospinning is used for supporting and electroless plating process is used for depositing a layer of conductive silver shell on the surface of the fiber. The surface silver is converted into AgI by the direct reaction of silver with iodine. By adjusting the amount of iodine, a composite fiber membrane of polyacrylonitrile nanofiber loaded with AgI or AgI / Ag nanoparticles is prepared. The material has excellent photocatalytic properties and is suitable for the field of light chemistry.

Description

technical field [0001] The invention belongs to the technical field of synthesis and photochemistry of new energy nanomaterials, and in particular relates to a self-supporting AgI composite photocatalyst material and its preparation method and application. Background technique [0002] As more and more countries enter the stage of industrialization, the 21st century will be a century of explosive growth in energy consumption and environmental pollution. Fossil energy (oil, natural gas, coal) is gradually becoming exhausted, and the available amount is seriously reduced. It is urgent to develop a new type of energy that can be used. At the same time, the discharge of a large amount of textile, printing and dyeing industrial sewage has aggravated water pollution, and most dyes contain aromatic groups such as benzene, naphthalene, anthracene, and quinone, which are highly polluting; in addition, halides and nitro groups in dye wastewater Organic substances such as organic comp...

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): B01J31/26B01J35/06C02F1/30
CPCC02F1/30B01J31/26C02F2305/10C02F2101/308B01J35/59B01J35/39Y02W10/37
Inventor 王兆杰平梦漠刘俊学刘明安长华王淑涛周炎
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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