Details

Autor(en) / Beteiligte

• Lu, Jia
• Wu, Jiang
• Xu, Weixing
• Cheng, Haoqiang
• Qi, Xuemei
• Li, Qingwei
• Zhang, Yuanan
• Guan, Yu
• Ling, Yang
• Zhang, Zhen

Titel

Room temperature synthesis of tetragonal BiOI photocatalyst with surface heterojunction between (0 0 1) facets and (1 1 0) facets

Ist Teil von

• Materials letters, 2018-05, Vol.219, p.260-264

Ort / Verlag

Amsterdam: Elsevier B.V

Erscheinungsjahr

2018

Link zum Volltext

Quelle

Access via ScienceDirect (Elsevier)

Beschreibungen/Notizen

• •Successful synthesis of tetragonal BiOI photocatalyst at room temperature by a simple hydrolysis method.•Surface heterojunction of (0 0 1) and (1 1 0) facets promote the separation of photo-induced electron-hole pairs.•BiOI exhibits enhanced visible light photoactivity for Methyl Orange degradation. At room temperature, tetragonal BiOI photocatalyst with surface heterojunction between (0 0 1) facets and (1 1 0) facets was prepared by controlling the amount of water in the hydrolysis process. The prepared samples with different proportions of (0 0 1) surface and (1 1 0) surface were characterized by XRD, SEM, TEM, HRTEM and UV-vis. The photocatalytic performance for the MO degradation under visible light can be attributed to the formation of interfacial heterojunction between the (0 0 1) surface and (1 1 0) surface, which promotes the separation of photoinduced electron and hole pairs on the interfaces.