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

Silver phosphate-hydroxyapatite-graphite phase carbon nitride composite photocatalyst as well as preparation method and application thereof

A technology of graphite phase carbon nitride and hydroxyapatite, which is applied in the direction of catalyst activation/preparation, physical/chemical process catalyst, catalyst carrier, etc., can solve the problems of unstable photosensitivity, achieve broad application prospects, convenient operation, The effect of low production cost

Inactive Publication Date: 2021-10-29
渤海水产股份有限公司 +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But Ag 3 PO 4 Disadvantages of photosensitivity and instability

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
  • Silver phosphate-hydroxyapatite-graphite phase carbon nitride composite photocatalyst as well as preparation method and application thereof
  • Silver phosphate-hydroxyapatite-graphite phase carbon nitride composite photocatalyst as well as preparation method and application thereof
  • Silver phosphate-hydroxyapatite-graphite phase carbon nitride composite photocatalyst as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0035] According to a first aspect of the present invention, a method for preparing a silver phosphate-hydroxyapatite-graphite phase carbon nitride composite photocatalyst is provided, comprising the following steps:

[0036] (a) Mix oyster shell powder and acid solution to react and separate to obtain mixed solution A;

[0037] The pH value of the mixed solution B formed by the mixed solution A and the phosphate-containing solution is adjusted to alkaline, and then mixed with graphite-phase carbon nitride to perform a hydrothermal reaction, and the hydrothermal reaction product is separated and dried to obtain hydroxyapatite -Graphite phase carbon nitride composite carrier; wherein, the mass ratio of oyster shell powder to graphite phase carbon nitride is (3-4):1;

[0038] (b) mixing the hydroxyapatite-graphite phase carbon nitride composite carrier with water to obtain a carrier turbid liquid;

[0039] The silver nitrate solution and the carrier turbid solution are mixed, t...

Embodiment 1

[0068] This embodiment provides a method for preparing a silver phosphate-hydroxyapatite-graphite phase carbon nitride composite photocatalyst, comprising the following steps:

[0069] (a) Preparation of hydroxyapatite-graphite carbon nitride composite support

[0070] The preparation method of oyster shell powder: the oyster shell is washed and dried, and then ground into powder, and the average particle diameter of the oyster shell powder is 200 mesh.

[0071] The preparation method of graphite phase carbon nitride: take urea solid, grind it into powder, transfer it to a crucible, put it in a muffle furnace, and react at 550°C for 8 hours to obtain a porous light yellow solid, and grind it to obtain graphite phase carbon nitride powder end.

[0072] Mix 0.25 g of graphitic carbon nitride with 50 mL of water, and process it ultrasonically to obtain a carbon nitride solution.

[0073] Mix the above 1.0g oyster shell powder with 40mL acetic acid solution (volume fraction 10%)...

Embodiment 2

[0078] This example provides a method for preparing silver phosphate-hydroxyapatite-graphite-phase carbon nitride composite photocatalyst, except that the amount of graphite-phase carbon nitride in step (a) is replaced by 0.25g to 0.3g, and the remaining steps Same as Example 1.

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 sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
lengthaaaaaaaaaa
Login to View More

Abstract

The invention provides a silver phosphate-hydroxyapatite-graphite phase carbon nitride composite photocatalyst as well as a preparation method and application thereof, and relates to the technical field of photocatalysts. The preparation method comprises the following steps: reacting oyster shell powder with an acid solution, mixing a mixed solution A obtained by the reaction with a phosphate radical-containing solution and graphite phase carbon nitride, and carrying out a hydrothermal reaction to obtain a hydroxyapatite-graphite phase carbon nitride composite carrier; then mixing a carrier turbid solution formed by the hydroxyapatite-graphite phase carbon nitride composite carrier and water with a silver nitrate solution, standing, separating and drying to obtain the silver phosphate-hydroxyapatite-graphite phase carbon nitride composite photocatalyst. The preparation method is simple in process and convenient to operate; according to the prepared composite photocatalyst, the stability of silver phosphate can be greatly improved by introducing hydroxyapatite and graphite-phase carbon nitride, and meanwhile, experiments find that the composite catalyst has relatively high mechanical strength and good photocatalytic performance.

Description

technical field [0001] The invention relates to the technical field of photocatalysts, in particular to a composite photocatalyst of silver phosphate-hydroxyapatite-graphite phase carbon nitride and its preparation method and application. Background technique [0002] With the development of economy and society, the pollution of water body environment is becoming more and more serious, and the treatment of water body environmental pollutants has attracted people's great attention. The pollution of organic matter in water bodies in my country is not optimistic. Persistent organic pollutants will not only seriously threaten human physical and mental health, but also have a strong residual period in the environment. Environmental pollution control has become an urgent task. At present, the common chemical methods for treating water pollutants include coagulation method, neutralization method, redox method, ion exchange method and so on. These traditional methods have the disad...

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): B01J27/24B01J37/10B01J27/18B01J32/00C02F1/30C02F101/30C02F101/36C02F101/38
CPCB01J27/24B01J37/10B01J27/1817C02F1/30C02F2101/30C02F2101/36C02F2101/38C02F2101/40C02F2305/10C02F2101/308B01J35/39
Inventor 宋萃陈景帝陈锚刘嘉川王文豪关浩马士玉赵延霞
Owner 渤海水产股份有限公司
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