Preparation and enhanced photocatalytic activity of Ag-nanowires@SnO2 core-shell heterogeneous structures

作者：Liu Hui^*; Liu Tingting; Dong Xiaonan; Hua Rui; Zhu Zhenfeng

来源：Ceramics International, 2014, 40(10): 16671-16675.

DOI：10.1016/j.ceramint.2014.08.029

• Ag@SnO2
• Hydrothermal
• Core-shell structures
• Photocatalytic activity

Ag-nanowires@SnO2 core shell heterogeneous structures (ANSOs) have been successfully synthesized through a two-step microwave hydrothermal method. First, monodispersed Ag-nanowires were obtained via a simple hydrothermal method. Second, SnO2 shell was wrapped on the Ag nanowires to form a ANSOs through another hydrothermal process, in which the SnCl4 center dot 5H(2)O was used as tin source. The physical and chemical properties of ANSOs were carefully studied by using XRD, SEM, TEM, UV-vis, respectively. The photocatalytic activity of the as-prepared products was evaluated by photocatalytic decolorization of Rhodamine B (Rh B) aqueous solution at room temperature (25 degrees C) under UV and visible-light irradiation. The measurements of photocatalytic activities show that the ANSOs has a better photocatalytic activity both in UV and visible-light region compared with that of pure SnO2 and P25.

• 出版日期2014-12
• 单位陕西科技大学