光催化
罗丹明B
异质结
材料科学
降级(电信)
可见光谱
带隙
空位缺陷
光化学
纳米复合材料
溶剂热合成
半导体
催化作用
化学工程
纳米技术
光电子学
无机化学
化学
结晶学
有机化学
电子工程
工程类
作者
Mingxin Li,Jing Zhang,Lijing Wang,Xueying Cheng,Xinchun Gao,Yuqi Wang,Guangya Zhang,Yunfeng Qi,Hongju Zhai,Renquan Guan,Zhao Zhao
标识
DOI:10.1016/j.apsusc.2022.152516
摘要
An oxygen-vacancy-rich TiO2/Ta3N5 (Vo-TiO2/Ta3N5) composite material was constructed via a solvothermal method, and the photocatalytic degradation of ciprofloxacin (CIP) performance was investigated in-depth. The solvothermal synthesis method introduces oxygen vacancies in TiO2, and successfully combines Vo-TiO2 and Ta3N5 to form a Z-Scheme structure. As a narrow bandgap semiconductor, Ta3N5 increases the absorption of the catalyst in the visible light region. Oxygen vacancies form an intermediate energy level in TiO2, which promotes the separation of photogenerated electrons and holes. In addition, the Z-Scheme energy band structure formed by Vo-TiO2 and Ta3N5 enables more photogenerated carriers to participate in the photocatalytic reaction, so that the Vo-TiO2/Ta3N5 heterojunction structure has excellent photocatalytic degradation of ciprofloxacin (CIP) performance. Furthermore, Vo-TiO2/Ta3N5 also can degrade rhodamine B, Methylene Blue and kill Staphylococcus aureus. It demonstrates that the sample is a multifunctional catalyst. This research provides a basis for the development of new nanocomposite photocatalysts by combining defect engineering and heterostructure construction of two modified semiconductor methods.
科研通智能强力驱动
Strongly Powered by AbleSci AI