Ag @ hierarchical TiO2 core-shell nanostructures for enhanced photocatalysis

作者：Xu, Haifeng; Li, Guang; Liu, Ning; Zhu, Kerong; Zhu, Guang; Jin, Shaowei^*

来源：Materials Letters, 2015, 142: 324-327.

DOI：10.1016/j.matlet.2014.12.016

• Nanostructure
• Hydrothermal reaction
• Photocatalysis

In this study, a two-step hydrothermal reaction approach was adopted to synthesize Ag@hierarchical TiO2 core-shell nanostructure (Ag@h-TiO2). XRD, SEM and TEM suggested that the as-synthesized sample were pure anatase phase and present a core-shell nanostructure. Ultraviolet-visible (UV-vis) absorption spectra result indicated that the absorption range extends to the visible light range. Compared with commercial P25 and pure hierarchical TiO2, Ag@h-TiO2 core-shell nanostructure exhibited a markedly enhanced photocatalytic activity in the degradation of methyl orange and methyl blue under simulated solar irradiation.

• 出版日期2015-3-1
• 单位宿州学院; 苏州大学; 安徽工程大学; 安徽大学