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journal article·2021-01Open access

PREPARATION AND PHOTOCATALYTIC PROPERTIES OF Ag/Graphene/TiO2 COMPOSITES

College of Chemical and Biological Engineering, Hechi University, Yizhou 546300, China, S. Y. LI, J. H. FENG, College of Chemical and Biological Engineering, Hechi University, Yizhou 546300, China, H. W. CHEN, College of Chemical and Biological Engineering, Hechi University, Yizhou 546300, China, J. Y LU, College of Chemical and Biological Engineering, Hechi University, Yizhou 546300, China, D. M. YAO, College of Chemical and Biological Engineering, Hechi University, Yizhou 546300, China, H. Y. ZHANG, College of Chemical and Biological Engineering, Hechi University, Yizhou 546300, China, Y. L. QIN, Application and research center of agricultural biotechnology, Hechi University, Yizhou546300, China

Digest Journal of Nanomaterials and Biostructures· Volume 16· Issue 1
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Abstract

The composite catalysts were prepared by two-step photothermal synthesis, and the morphology, structure and catalytic performance of the Ag/graphene/TiO2 composite were characterized by SEM, FT-IR, XRD, etc. The results showed that the composites were prepared successfully by Ag depositing on TiO2 compounded with graphene, and solid UV diffuse reflection test showed that Ag/Graphene/TiO2 composites had the greatest enhancement in the absorption of visible light. The results showed that among four kinds materials, the methyl orange’s degradation rate of Ag/Graphene/TiO2 in simulated visible light reached best, whose degradion was 4.25 times that of pure TiO2. The number of photocatalytic experiments showed that Ag/Graphene/TiO2 photogenerated electrons and the corresponding generated O2· dominated the catalysis.
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Research context

NanomaterialsCompositesCatalysis & surfaces

OpenAlex topics: Advanced Photocatalysis Techniques · Carbon and Quantum Dots Applications · Advanced Nanomaterials in Catalysis

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