A step-by-step photocatalytic preparation method of tetrakis(p-sulfonic acid phenyl)porphyrin silver/silver/carbon nitride nanosheet composite material

A technology of p-sulfonic acid phenyl and composite materials, applied in chemical instruments and methods, material electrochemical variables, chemical/physical processes, etc., to achieve the effect of easy-to-obtain raw materials, low price, and high practical value

Active Publication Date: 2019-08-09
FUZHOU UNIV
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Problems solved by technology

[0002] Ordinary chemical reactions often produce large amounts of reaction waste such as concentrated or diluted acids and bases, hypochlorite solutions and toxic compounds

Method used

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  • A step-by-step photocatalytic preparation method of tetrakis(p-sulfonic acid phenyl)porphyrin silver/silver/carbon nitride nanosheet composite material
  • A step-by-step photocatalytic preparation method of tetrakis(p-sulfonic acid phenyl)porphyrin silver/silver/carbon nitride nanosheet composite material
  • A step-by-step photocatalytic preparation method of tetrakis(p-sulfonic acid phenyl)porphyrin silver/silver/carbon nitride nanosheet composite material

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[0036] In order to make the content of the present invention easier to understand, the technical solutions of the present invention will be further described below in conjunction with specific embodiments, but the present invention is not limited thereto.

[0037] with C 3 N 4 Step-by-step photocatalytic preparation of AgTPPS for photocatalysts 4 / AgNPs / ng-C 3 N 4 The method for composite material, its concrete steps are:

[0038] 1) Add 30 mg ng-C 3 N 4 powder and 0.051 g AgNO 3 The solid was added to a 3:1 mixed solution of 20 ml ultrapure water and isopropanol, where isopropanol was used as a photogenerated hole capture agent. After ultrasonic treatment for 30 min, it was irradiated with ultraviolet-visible light for the first time for 60 min under the protection of nitrogen and stirring at room temperature at 800 rpm. 3 N 4 Photocatalytic reduction reaction for photocatalysts to form ng-C loaded with silver nanoparticles 3 N 4 suspension;

[0039] 2) Centrifuge...

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Abstract

The invention belongs to the field of preparation of nanometer functional materials, and particularly relates to a stepwise photocatalysis method for preparing an AgTPPS4 / AgNPs / ng-C3N4 nitride nanosheet composite material, wherein C3N4 is a photocatalyst, silver nitrate is illuminated by ultraviolet visible light and subjected to catalytic reduction for the first time to become silver ions undernitrogen protection at the room temperature, and a silver / ng-C3N4 composite material is formed. Later, at the room temperature and under the nitrogen protection and a stirring condition, the composite material is illuminated by ultraviolet visible light for the second time and subjected to photocatalyzed synthesis to obtain the AgTPPS4 / AgNPs / ng-C3N4 composite material. The obtained nanometer composite material has the advantages of great dispersity, high catalyzation, excellent stability and the like, and is used for high-sensitivity electrochemical detection of ractopamine.

Description

technical field [0001] The invention belongs to the field of preparation of nano functional materials, in particular to a step-by-step photocatalytic preparation of AgTPPS 4 / AgNPs / ng-C 3 N 4 Composite methods. Background technique [0002] Ordinary chemical reactions often produce large amounts of reaction waste such as concentrated or diluted acids and bases, hypochlorite solutions, and toxic compounds. These wastes are potentially harmful to both the environment and human beings. Therefore, the concept of green synthesis has attracted widespread attention of scientific researchers. Among them, at room temperature, the photocatalytic synthesis method that uses light as the reaction source and rarely generates reaction waste is one of the most promising synthetic methods at present. Using this method to synthesize compounds has many advantages, it can be carried out under relatively mild conditions, and it can replace the preparation of materials with harsh reaction co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/22G01N27/26
CPCB01J31/183B01J35/0033B01J2531/025B01J2531/17G01N27/26
Inventor 潘海波谢文强应美慧许远杰彭琦谢文菊王艺娟
Owner FUZHOU UNIV
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