光催化
乙二醇
可见光谱
降级(电信)
锌
光化学
材料科学
电子转移
硝酸锌
兴奋剂
介孔材料
溴化铵
化学
化学工程
肺表面活性物质
有机化学
催化作用
电信
光电子学
计算机科学
工程类
生物化学
作者
Takeshi Yao,Renzhong Tai,Xueguan Song,Shuai Gao,Runjie Wu,Shaowei Chen,Peishen Li,Qiang Wang
出处
期刊:Langmuir
[American Chemical Society]
日期:2024-03-11
标识
DOI:10.1021/acs.langmuir.4c00155
摘要
Photocatalysis represents an effective technology for environmental remediation. Herein, a series of Zn-doped BiOBr hollow microspheres are synthesized via one-pot solvothermal treatment of bismuth nitrate and dodecyl ammonium bromide in ethylene glycol along with a calculated amount of zinc acetate. Whereas the materials morphology and crystal structure remain virtually unchanged upon Zn-doping, the photocatalytic performance toward the degradation of ciprofloxacin is significantly improved under visible light irradiation. This is due to the formation of a unique band structure that facilitates the separation of photogenerated electron–hole pairs, reduced electron-transfer resistance, and enhanced electron mobility and carrier concentration. The best sample consists of a Zn doping amount of 1%, which leads to a 99.2% degradation rate of ciprofloxacin under visible photoirradiation for 30 min. The resulting photocatalysts also exhibit good stability and reusability, and the degradation intermediates exhibit reduced cytotoxicity compared to ciprofloxacin. These results highlight the unique potential of BiOBr-based photocatalysts for environmental remediation.
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