Method for preparing composite visual light catalytic material Ag3PO4 and g-C3N4

An ag3po4g-c3n4, catalytic material technology, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., to achieve the effects of low cost, simple and easy preparation method, and mild synthesis conditions

Inactive Publication Date: 2013-04-10
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But by loading silver phosphate on g-C 3 N 4 Novel Ag 3 PO 4 g-C 3 N 4 Composite visible photocatalytic materials have not been reported yet

Method used

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  • Method for preparing composite visual light catalytic material Ag3PO4 and g-C3N4
  • Method for preparing composite visual light catalytic material Ag3PO4 and g-C3N4

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Weigh 0.1860g of g-C 3 N 4 powder, added into 30ml of deionized water, ultrasonicated for 30 minutes, then weighed 2.0385g (0.012mol) of silver nitrate and dissolved in the above dispersion, and kept stirring for 4 hours. Then measure Na at a concentration of 0.25M 3 PO 4 16ml of the solution was slowly added dropwise to the above mixed solution, and the reaction was continued for 24 hours, and the product was washed and dried to obtain the corresponding Ag 3 PO 4 g-C 3 N 4 -10% composite visible light catalytic material. Test the Ag 3 PO 4 g-C 3 N 4 -10% photocatalytic performance of visible photocatalytic materials for methyl orange, such as figure 1 shown.

Embodiment 2

[0021] Weigh 0.0881g of g-C 3 N 4 powder, added into 30ml of deionized water, ultrasonicated for 30 minutes, then weighed 2.0385g (0.012mol) of silver nitrate and dissolved in the above dispersion, and kept stirring for 4 hours. Then measure Na at a concentration of 0.25M 3 PO 4 16ml of the solution was slowly added dropwise to the above mixed solution, and the reaction was continued for 24 hours, and the product was washed and dried to obtain the corresponding Ag 3 PO 4 g-C 3 N 4 -5% composite visible light catalytic material.

Embodiment 3

[0023] Weigh 0.4186g of g-C 3 N 4 powder, added into 30ml of deionized water, ultrasonicated for 30 minutes, then weighed 2.0385g (0.012mol) of silver nitrate and dissolved in the above dispersion, and kept stirring for 4 hours. Then measure Na at a concentration of 0.25M 3 PO 4 16ml of the solution was slowly added dropwise to the above mixed solution, and the reaction was continued for 24 hours, and the product was washed and dried to obtain the corresponding Ag 3 PO 4 g-C3 N 4 -20% composite visible light catalytic material.

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Abstract

The invention discloses a method for preparing a novel efficient composite visual light catalytic material Ag3PO4@g-C3N4. First, g-C3N4 in a flaky structure is processed in a silver salt solution under ultrasonic action so as to load silver ions on the surface of g-C3N4. Then, a sodium phosphate solution is dropped in and continuously agitated, and the composite material Ag3PO4@g-C3N4 is formed through the in-situ precipitation reaction of the silver ions loaded on the surface of the g-C3N4 and phosphate radical ions. The method has the advantages of simple and easily-controlled preparing process, convenience in operation, low cost and high product visual light catalytic activity.

Description

technical field [0001] The present invention relates to an Ag 3 PO 4 g-C 3 N 4 The invention relates to a composite visible light catalyst and a preparation method thereof, which belong to the technical field of photocatalysis in nanocomposite materials and environmental treatment. Background technique [0002] In recent years, energy shortage and environmental pollution have become increasingly serious. Therefore, in order to realize the sustainable development of human society, visible light catalysis technology, as a technology that can effectively control environmental pollution and develop new energy, has aroused great interest of researchers. And it is widely used in environmental protection, clean energy preparation (solar energy is converted into hydrogen energy) and other fields. [0003] As the core of photocatalytic technology, the development of photocatalyst is particularly important. For a long time, most photocatalyst research has focused on TiO 2 and ot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/24B01J35/00C02F1/30
Inventor 赵崇军张卓民兰永焕钱秀珍徐云龙张金朝
Owner EAST CHINA UNIV OF SCI & TECH
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