Preparation method and application for ternary composite photocatalyst

A ternary composite and photocatalyst technology, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve problems such as high cost and unsuitable for large-scale applications , to achieve short reaction time, excellent photocatalytic activity, and easy mass production
CN105688899AInactive Publication Date: 2016-06-22JIANGSU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU UNIV
Publication Date
2016-06-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the technical field of nano-material synthesis, and particularly relates to a preparation method and the application of a ternary composite photocatalyst. The preparation method comprises the following steps: first, synthesizing CQDs (Carbon Quantum Dots) with a remarkable up-conversion fluorescence effect by utilizing a simple one-step alkali auxiliary ultrasonic processing method; then, generating silver oxide (Ag2O) with an octahedral structure in CQDs solution by a wet-chemical method to obtain a CQDs / Ag2O compound with a CQDs coating layer; finally, loading silver (Ag) nano-particles on the surface of the CQDs / Ag2O by using chemical deposition and photo-deposition methods. The ternary composite photocatalyst can be used for degrading organic pollutants, such as rhodamine B, under full spectrum.
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Description

technical field

[0001] The invention belongs to the technical field of nanomaterial synthesis. Firstly, carbon quantum dots (CQDs) with significant upconversion fluorescence effect are synthesized by a simple one-step alkali-assisted ultrasonic treatment method, and then the oxidation of octahedral structure is generated in the CQDs solution by a wet chemical method. Silver (Ag 2 O), to obtain CQDs / Ag with CQDs coating layer 2 O complexes were finally deposited on CQDs / Ag using chemical deposition and photodeposition methods 2 Silver (Ag) nanoparticles loaded on the surface of O can be used to degrade organic pollutants such as rhodamine B under the full spectrum. Background technique

[0002] Since the 20th century, while enjoying the comfort and convenience brought by the rapid development of science and technology, human beings have also suffered from the deteriorating living environment caused by blindness and short-sightedness. In today's deteriorating ecological env...

Claims

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