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

A kind of preparation method of nano silver phosphate photocatalyst

A catalyst and phosphoric acid technology, applied in chemical instruments and methods, physical/chemical process catalysts, nanotechnology, etc., can solve the problems of large particle size and low specific surface area, and achieve uniform size distribution, good repeatability, and utilization of visible light strong effect

Active Publication Date: 2019-01-01
苏州美纳福健康科技有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese invention patent (CN103263937A) discloses a preparation method of tetrahedral silver phosphate photocatalyst, which is prepared at room temperature by liquid phase precipitation method. The preparation conditions are simple and easy to control, and the photodegradation ability is better than ordinary commercial TiO 2 However, the silver phosphate crystal particle size prepared by it is about 2 μm, the particle size is still large, and the specific surface area is not high, and the photocatalytic performance of silver phosphate is largely determined by the specific surface area and size of its particles, so , finding a preparation method that can prepare silver phosphate photocatalyst with specific morphology, low particle size and good repeatability has become the focus of research

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
  • A kind of preparation method of nano silver phosphate photocatalyst
  • A kind of preparation method of nano silver phosphate photocatalyst
  • A kind of preparation method of nano silver phosphate photocatalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Weigh 0.338g AgNO respectively 3 and 1.768g Na 3 PO 4 12H 2 O, put it in an agate mortar and grind for 0.5 hours to get a uniformly distributed mixed powder; put the mixed powder into a polytetrafluoroethylene reaction vessel, heat up to 180°C in an oven, heat for 24 hours, and wait to cool to room temperature Finally, take out the sample and dissolve it in hot deionized water, then centrifuge the resulting mixture, and wash it twice with deionized water and three times with ethanol; put the obtained sample in a drying oven at 60°C for 12 hours, and then Ag after furnace cooling and grinding 3 PO 4 catalyst of light.

Embodiment 2

[0024] Weigh 0.338g AgNO respectively 3 and 3.536g Na 3 PO 4 12H 2 O, put it into an agate mortar and grind for 0.5 hours to get a uniformly distributed mixed powder; put the mixed powder into a polytetrafluoroethylene reaction vessel, heat up to 120°C in an oven, heat for 12 hours, and wait to cool to room temperature Finally, take out the sample and dissolve it in hot deionized water, then centrifuge the resulting mixture, and wash it twice with deionized water and three times with ethanol; put the obtained sample in a drying oven at 60°C for 12 hours, and then Ag after furnace cooling and grinding 3 PO 4 catalyst of light.

[0025] See attached figure 1 , which is the Ag prepared in this example 3 PO 4 The XRD diffraction pattern of the photocatalyst, from figure 1 It can be seen that the intensity of the diffraction peak is high and sharp, indicating that the synthesized Ag 3 PO 4 Good crystallinity.

[0026] See attached figure 2 , which is the Ag prepared i...

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 diameteraaaaaaaaaa
sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of nanometer silver phosphate photocatalyst. Using silver salt as raw material, the molar ratio is 3:1 to 1:100, thoroughly mix the raw material and sodium phosphate dodecahydrate, and grind to obtain a mixed powder; place the mixed powder in a closed reaction vessel at a temperature of 80 Heat treatment at ℃ to 200°C for 2 to 48 hours; wait for the product to cool to room temperature, dissolve, and then centrifuge, wash, and dry to obtain a nanometer silver phosphate photocatalytic product. The preparation process of the invention is simple, the raw materials are cheap and easy to obtain, no subsequent calcination is required, the preparation cycle is short, the repeatability is good, and it is easy for industrial production; the prepared material has stable chemical properties and has good visible light-driven degradation of organic pollutants.

Description

technical field [0001] The invention relates to a preparation method of nanometer silver phosphate visible light photocatalyst. Background technique [0002] In today's society, pollution problems and energy shortages caused by the rapid increase in population are becoming more and more serious. The control of environmental pollution and the development of new energy sources have become major research topics under the sustainable development strategy. Using solar energy to solve the two major problems of environment and energy is the best choice at present. [0003] Photocatalysis is the use of sunlight to provide energy to promote chemical reactions. The photocatalytic process is mainly divided into two parts: one is the absorption of photon energy. When the semiconductor material is irradiated by light (hυ) whose energy is greater than its band gap energy (Eg), the electrons on the valence band will be excited to the conduction band. At the same time, a hole is generated...

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): B01J27/18C01B25/37B82Y40/00A62D3/17A62D101/26A62D101/28
CPCA62D3/17B82Y40/00C01B25/37B01J27/1817C01P2004/03C01P2002/72C01P2002/84C01P2002/80C01P2004/64A62D2101/28A62D2101/26B01J35/39
Inventor 郑敏李伟峰王作山
Owner 苏州美纳福健康科技有限公司
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com