Details

Autor(en) / Beteiligte

• Cheng, Haoqiang
• Wu, Jiang
• Tian, Fengguo
• Zhao, Lili
• Ji, Zheng
• Li, Fangqing
• Li, Qingwei
• Guan, Zhenzhen
• Zhou, Tianyi

Titel

In-situ crystallization for fabrication of BiOI/Bi^sub 4^O^sub 5^I^sub 2^ heterojunction for enhanced visible-light photocatalytic performance

Ist Teil von

• Materials letters, 2018-12, Vol.232, p.191

Ort / Verlag

Amsterdam: Elsevier BV

Erscheinungsjahr

2018

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• BiOI/Bi4O5I2 heterojunction photocatalysts were prepared by in-situ crystallization. The influence of the heterostructure on the photocatalyst was investigated by XRD, SEM, HRTEM, UV–vis DRS and PL characterization. The photocatalytic performance of the sample was evaluated by the photocatalytic removal rate of Hg0 under visible-light irradiation. The results show that BiOI-390 exhibits the best photocatalytic performance. It can be attributed to the construction of heterostructures, which inhibits the recombination of photogenerated electron-hole pairs. Based on characterization and experiments, a reasonable Z-scheme charge transfer and photocatalytic reaction mechanism were proposed.