Dealloying-driven synthesis and characterization of AgCl/Ag/TiO2 nanocomposites with enhanced photocatalytic properties

17th IUMRS International Conference in Asia

Wang, Tongyang^1,2 ; Wang, Yan^1 ; Zhao, Zhengfeng^1 ; Zhang, Lanxiang^1 ; Huang, Shifeng^2

School of Materials Science and Engineering, University of Jinan, No. 336, West Road of Nan, Xinzhuang Jinan

250022, China^1

Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, No. 336, West Road of Nan, Xinzhuang Jinan

250022, China^2

关键词: Degradation of methyl oranges;    Field emission scanning electron microscopy;    High specific surface area;    Photocatalytic activities;    Photocatalytic property;    Surface plasmon resonance effects;    Synthesis and characterizations;    Visible-light irradiation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/182/1/012006/pdf
DOI  :  10.1088/1757-899X/182/1/012006

来源: IOP

【 摘 要 】

The combination of dealloying with acid treatment was used to fabricate mesoporous anatase TiO2with high specific surface area of 233 m2/g. Using anatase TiO2as a matrix, a photoreduction strategy was developed to synthesize AgCl/Ag/TiO2nanocomposites with different Ti/Ag molar ratios. The morphology and properties of AgCl/Ag/TiO2nanocomposites were investigated by X-ray diffraction, field emission scanning electron microscopy and transmission electron microscopy. The AgCl/Ag/TiO2nanocomposites showed an enhanced photocatalytic activity for the degradation of methyl orange solution under visible light irradiation. The optimum Ti/Ag molar ratio in the AgCl/Ag/TiO2nanocomposites was shown to be 6:1, which was attributed to its high specific surface area of 207 m2/g and the surface plasmon resonance effect.