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

Method for supporting carbon nitride photocatalyst on surfaces of glass beads

A glass bead and catalyst technology, applied in physical/chemical process catalysts, chemical instruments and methods, catalyst activation/preparation, etc., can solve the problems of difficult large-scale preparation, cumbersome steps, easy to fall off, etc., to achieve controllability and repeatability Good properties, cheap and easy-to-obtain raw materials, and wide application prospects

Inactive Publication Date: 2019-08-16
FUZHOU UNIVERSITY
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the carbon nitride film formed by the above method still has problems such as cumbersome steps, low yield, difficulty in large-scale preparation, uneven carbon nitride layer, weak interaction with the substrate, and easy to fall off, which seriously limits Practical application of carbon nitride photocatalyst

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
  • Method for supporting carbon nitride photocatalyst on surfaces of glass beads
  • Method for supporting carbon nitride photocatalyst on surfaces of glass beads
  • Method for supporting carbon nitride photocatalyst on surfaces of glass beads

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Put the 1mm glass beads after surface treatment into the newly prepared piranha solution, stir well overnight, after diluting the solution, take out the treated glass beads, put them into anhydrous In toluene solvent (the volume ratio of 3-aminopropyltrimethoxysilane and anhydrous toluene is 1:20), reflux at 110°C for 12 hours, separate, wash with dichloromethane and ethanol, and dry in a vacuum drying oven Dry, then mix with equal mass of urea evenly, place in an air muffle furnace, heat up to 550°C at 3°C / min, after heat treatment for 2h, cool down to room temperature naturally, then place in deionized water to rinse off the surface of the glass beads The excess carbon nitride material is used to obtain glass beads of carbon nitride photocatalysts uniformly loaded on the surface.

Embodiment 2

[0020] Put the 1 mm glass beads after surface treatment into the newly prepared piranha solution, and stir overnight. After diluting the solution, take out the treated glass beads and put them into anhydrous In toluene solvent (the volume ratio of 3-aminopropyltrimethoxysilane and anhydrous toluene is 1:10), reflux at 110°C for 12 hours, separate, wash with dichloromethane and ethanol, and dry in a vacuum drying oven Dry it, then mix it evenly with equal mass of dicyandiamide, put it in an air muffle furnace, raise the temperature to 600°C at 5°C / min, and after heat treatment for 2h, cool it down to room temperature naturally, then rinse it off in deionized water The excess carbon nitride material on the surface of the glass beads is used to obtain glass beads with carbon nitride photocatalysts evenly loaded on the surface.

Embodiment 3

[0022] Put the 2 mm glass beads after surface treatment into the newly prepared piranha solution, and stir overnight. After diluting the solution, take out the treated glass beads and put them in anhydrous In toluene solvent (the volume ratio of 3-aminopropyltrimethoxysilane and anhydrous toluene is 1:15), reflux at 110°C for 12 hours, separate, wash with dichloromethane and ethanol, and dry in a vacuum drying oven Dry, then mix with equal mass of urea, place in an air muffle furnace, heat up to 550°C at 2°C / min, after heat treatment for 2 hours, cool to room temperature naturally, then place in deionized water to wash off the surface of the glass beads The excess carbon nitride material is used to obtain glass beads of carbon nitride photocatalysts uniformly loaded on the surface.

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
Diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for supporting a carbon nitride photocatalyst on the surfaces of glass beads, and belongs to the technical field of material preparation. The method comprises the following steps: carrying out hydroxylation on the surface of glass, carrying out methoxyamination treatment in an anhydrous toluene solvent, uniformly mixing glass beads with a carbon nitride photocatalyst precursor, and carrying out high-temperature heat treatment on the mixture in air to obtain the glass beads of which the surfaces are uniformly loaded with the carbon nitride photocatalyst. After the surface of the glass is simply treated, the precursor and amino groups on the surfaces of the glass beads are subjected to a coupling bonding reaction, so that the carbon nitride photocatalyst is uniformly loaded on the surface of the glass. The method is simple to carry out, does not need complex and expensive instruments and equipment, adopts cheap and easily available raw materials, is suitable for large-scale production, and plays an important role in promoting the practical application of the carbon nitride photocatalyst in the fields of organic catalysis, air purification, detection and analysis and the like.

Description

technical field [0001] The invention belongs to material preparation technology, in particular to a method for evenly loading carbon nitride photocatalyst on the surface of glass beads. Background technique [0002] Since the carbon nitride material was first reported as a photocatalyst in 2009 for hydrogen and oxygen production reactions in water decomposition, carbon nitride material has gradually become a new type of polymer semiconductor photocatalyst, which has attracted the attention of researchers. . However, traditional carbon nitride photocatalysts have shortcomings such as insufficient utilization of visible light, high exciton binding energy, and low specific surface area. At present, a lot of research work has been carried out to effectively modify carbon nitride photocatalysts for the above shortcomings, which greatly improves Its apparent quantum efficiency makes it have the potential for practical application. [0003] Carbon nitride polymer photocatalysts a...

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
IPC IPC(8): B01J27/24B01J37/02B01J37/08
CPCB01J27/24B01J37/0215B01J37/08B01J37/0228B01J35/39
Inventor 王心晨阳灿
Owner FUZHOU 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