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

Composite visible light catalyst and its preparation method and application

A catalyst and visible light technology, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve problems affecting photocatalytic activity and recycling effects, limiting practical applications, and easy photocorrosion, etc., to achieve Effects of improving visible light catalytic performance, stabilizing photocatalytic performance, and improving quantum efficiency

Inactive Publication Date: 2019-05-14
CHANGSHA UNIVERSITY
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, Ag 3 PO 4 It is easy to be photocorroded in the photocatalytic process, and it will slowly dissolve in water, which affects its photocatalytic activity and recycling effect, and limits its practical application in water treatment.

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A kind of composite visible light catalyst of the present invention, this composite visible light catalyst is made of CNT-silver citrate and g-C 3 N 4 -PO 4 3- Obtained by ion exchange precipitation, CNT-silver citrate is CNT, sodium citrate and AgNO 3 Obtained by surface ionization (complexation), g-C 3 N 4 -PO 4 3- is g-C 3 N 4 and NaH 2 PO 4 Obtained by surface phosphorylation.

[0031] A method for preparing the composite visible light catalyst of the above-mentioned present embodiment, comprising the following steps:

[0032] (1) Preparation of g-C 3 N 4

[0033] (1.1) Put 1 g of melamine in an alumina crucible (covered), raise the temperature to 500 °C at a heating rate of 5 °C / min, and react at this temperature for 3 hours;

[0034] (1.2) Naturally cool the alumina crucible to room temperature to collect the product and grind it into fine powder to obtain g-C 3 N 4 .

[0035] (2) CNT surface complexation

[0036] (2.1) Add 0.255g AgNO 3 Disper...

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 composite visible light catalyst and its preparation method and application. The composite visible light catalyst is composed of CNT-silver citrate and g-C 3 N 4 ‑PO 4 3‑ Obtained by precipitation method, CNT-silver citrate is CNT, sodium citrate and AgNO 3 Obtained through surface complexation, g‑C 3 N 4 ‑PO 4 3‑ is g‑C 3 N 4 and NaH 2 PO 4 Obtained by surface phosphorylation. The preparation method includes: preparing CNT-silver citrate, preparing g-C 3 N 4 ‑PO 4 3‑ and preparation of CNT / Ag 3 PO 4 / g‑C 3 N 4 . The composite visible light catalyst of the present invention can be used to treat antibiotic wastewater, and has the advantages of high visible light utilization, stable existence in water, and stable photocatalytic performance.

Description

technical field [0001] The invention belongs to the field of antibiotic wastewater treatment, and in particular relates to a composite visible light catalyst and its preparation method and application. Background technique [0002] In recent years, due to the widespread use of antibiotics, antibiotic wastewater has become a major source of industrial pollution. Due to the complex composition of antibiotic wastewater, it is difficult to biodegrade and bioaccumulate, which leads to the unsatisfactory treatment effect of traditional water treatment processes. In recent years, photocatalysis technology has received more and more attention. Photocatalysis technology is a kind of green environmental protection treatment technology, which is widely used to degrade refractory organic pollutants in water. Compared with traditional biological or physical-chemical methods, the great advantage of photocatalytic technology is that it can completely degrade pollutants into CO 2 、H 2 O ...

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): B01J27/24C02F1/30
CPCC02F1/30B01J27/24C02F2305/10B01J35/39Y02W10/37
Inventor 罗琨张建社庞娅李雪廖兴盛裴习君刘运红
Owner CHANGSHA 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