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

Synergistic Degradation of Organic Matter Using Visible Light Photoelectricity-Fenton

A technology of synergistic degradation and visible light, applied in the direction of protection devices against harmful chemicals, etc., can solve the problems of human injury, hinder the popularization and application, high cost, and achieve the effect of reducing compounding, improving photocatalytic efficiency and easy operation.

Active Publication Date: 2015-08-26
GUANGXI UNIV
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is still limited to the use of ultraviolet light. The cost of ultraviolet light is high, it is easy to cause damage to the human body, and it only accounts for a small part of sunlight. These inevitable disadvantages will hinder the further application of this method.

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
  • Synergistic Degradation of Organic Matter Using Visible Light Photoelectricity-Fenton
  • Synergistic Degradation of Organic Matter Using Visible Light Photoelectricity-Fenton

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Polish the Ti-based substrate with a purity >99.6% with metallographic sandpaper of 500#, 1000#, and 1500# in sequence until the surface is smooth, and then immerse in a volume ratio of HF:HNO 3 :H 2 Chemical polishing was carried out in the polishing solution of O=1:4:5 for 30 s, and then cleaned in an ultrasonic cleaner with acetone and pure water in sequence. The treated Ti-based substrate was used as the anode, the graphite electrode was used as the cathode, and the distance between the anode and the cathode was 4 cm. 4 The mixed solution of F and glycerol is used as the electrolyte, the volume ratio of glycerol to water is 1:9, and it contains NH 4 The concentration of F is 0.5 wt%. Use copper wires as wires to connect the two stages to a DC stabilized power supply for electrochemical anodic oxidation. In this reaction, the controlled voltage was 30 V, and the anodic oxidation time was 90 min, to obtain amorphous mesoporous TiO 2 Thin film electrode; after 120 ...

Embodiment 2

[0032] Polish the Ti-based substrate with a purity >99.6% with metallographic sandpaper of 500#, 1000#, and 1500# in sequence until the surface is smooth, and then immerse in a volume ratio of HF:HNO 3 :H 2 Chemical polishing was carried out in the polishing solution of O=1:4:5 for 30 s, and then cleaned in an ultrasonic cleaner with acetone and pure water in sequence. The treated Ti-based substrate was used as the anode, the graphite electrode was used as the cathode, and the distance between the anode and the cathode was 5 cm, and the NH 4 The mixed solution of F and glycerol is used as the electrolyte, the volume ratio of glycerol to water is 1:9, and it contains NH 4 The concentration of F is 0.3 wt%. Use copper wires as wires to connect the two stages to a DC stabilized power supply for electrochemical anodic oxidation. In this reaction, the controlled voltage was 10 V, and the anodic oxidation time was 150 min to obtain amorphous mesoporous TiO 2 Thin film electrode;...

Embodiment 3

[0036] Polish the Ti-based substrate with a purity >99.6% with metallographic sandpaper of 500#, 1000#, and 1500# in sequence until the surface is smooth, and then immerse in a volume ratio of HF:HNO 3 :H 2 Chemical polishing was carried out in the polishing solution of O=1:4:5 for 30 s, and then cleaned in an ultrasonic cleaner with acetone and pure water in sequence. The treated Ti-based substrate was used as the anode, the graphite electrode was used as the cathode, and the distance between the anode and the cathode was 3 cm. 4 The mixed solution of F and glycerol is used as the electrolyte, the volume ratio of glycerol to water is 1:9, and it contains NH 4 The concentration of F is 0.2 wt%. Use copper wires as wires to connect the two stages to a DC stabilized power supply for electrochemical anodic oxidation. In this reaction, the controlled voltage was 40 V, and the anodic oxidation time was 90 min to obtain amorphous mesoporous TiO 2 Thin film electrode; after 120 m...

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 discloses a method for cooperatively degrading organic matters by visible light photoelectric-Fenton. According to the method, a visible light photoelectric-Fenton system formed by visible light, photocatalysis and electric-Fenton is used and the organic matters are put into the system to be degraded. The method comprises the specific steps of (1) preparing a mesoporous TiO2 thin film electrode; (2) forming the visible light photoelectric-Fenton system; and (3) degrading the organic matters. According to the method, a photocatalysis technology, a photoelectric oxidization technology and a Fenton oxidization technology are combined and the visible light is introduced to form the visible light photoelectric-Fenton system; the self-made mesoporous TiO2 thin film electrode is used in the visible light photoelectric-Fenton system to realize the mutual cooperative effect of the photocatalysis and the electric-Fenton under the visible light, so that the treatment effect on organic pollutants by the whole system is improved.

Description

technical field [0001] The invention belongs to the field of environmental protection and governance, and relates to a method for degrading organic matter by using a visible light photoelectric-Fenton system. Background technique [0002] Photocatalysis has been widely used in the degradation of organic matter in the environment, nano-TiO 2 Photocatalysts are favored by researchers due to their good catalytic performance, non-toxicity, and low price. Traditional TiO 2 The photocatalyst is in the form of powder, which has problems such as difficult separation of the catalyst and easy to cause secondary pollution. Mesoporous TiO 2 , due to the advantages of high specific surface area, ordered pore structure, controllable pore size, and easy surface modification, it can solve the problem of traditional TiO 2 Photocatalysis has problems such as difficult separation of catalysts and easy to cause secondary pollution. [0003] Patent 200910306567.0 discloses the preparation m...

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): A62D3/11A62D101/20
Inventor 喻泽斌彭振波孙玲芳胡晓
Owner GUANGXI 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