期刊
CERAMICS INTERNATIONAL
卷 44, 期 5, 页码 5392-5401出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2017.12.168
关键词
Bi4O5Br2 nanosheet; High visible-light absorption; Low interface charge transport resistance; Photocatalytic activity
资金
- National Natural Science Foundation of China [21571057, 21701042]
- Fundamental Research Funds for the Central Universities
Bi4O5Br2 nanosheets have been fast synthesized via a facile aqueous method. The morphology, crystal structure, optical property, and electronic structure of the obtained samples were discussed. During the reaction process, it was found that the reaction parameters including the amount of NaBr and the amount of NaOH significantly influenced the composition and structure of the samples. The photocatalytic performance of the prepared samples was explored by degrading BPA under visible-light irradiation. Bi4O5Br2 nanosheets exhibited enhanced photocatalytic activity in comparison to BiOBr or Bi5O7Br, which can be attributed to its higher visible-light absorption and lower interface charge transport resistance. Additionally, the photocatalytic degradation mechanism over Bi4O5Br2 nanosheets was also investigated. h(+) and center dot O-2(-) were the main photoactive species during the visible-light photocatalytic process by quencher experiments and EPR results. This study is expected to provide new insights into the development on facile fabrication and potential application of Bi-deficient bismuth oxybromide photocatalysts.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据