降级(电信)
光催化
甲基橙
异质结
光降解
罗丹明B
X射线光电子能谱
材料科学
高分辨率透射电子显微镜
化学工程
锌黄锡矿
光化学
纳米技术
化学
光电子学
催化作用
计算机科学
透射电子显微镜
有机化学
工程类
电信
捷克先令
图层(电子)
作者
Xin Wang,Chuangyun Guo,Xinru Hu,Yifei Xu,Cheng Zhang,Jiamin Wei,Jushi Weng,Yilan Liu,Lianshe Fu,Qing Wang,Ting‐Hai Yang
标识
DOI:10.1016/j.jece.2024.112010
摘要
The elaborate design of efficient strategy to facilitate interfacial and spatial charge separation is a prospective strategy for the enhancement of photodegradation activity. Herein, the oxygen vacancies modified hierarchical hollow tubular Bi2WO6/In2O3 heterostructure was synthesized via an in situ self-assembly method using MIL-68(In) as precursors and structural component, which can modulate charge redistribution for effective photocatalytic norfloxacin degradation (90.8%) in 50 min. The XRD, ESR, HRTEM, and XPS characterizations significantly prove the existence of oxygen vacancies and the successful construction of Bi2WO6/In2O3 heterojunction. Furthermore, the optimal BWO/In2O3-25 catalyst exhibits excellent degradation efficiency of NOR in practical water matrices and superior decomposition performances of tetracycline (82.1%), ciprofloxacin (82.4%), levofloxacin (88.2%), methyl orange (86.3%), methylene blue (93.2%), and rhodamine B (94.7%). Importantly, the toxicity of NOR can be ignored after the degradation. Capture experiments and DFT calculations collaboratively demonstrate the Z-scheme charge migration mechanism. This study presents a novel opinion for rational developing oxygen vacancies modified Z-scheme heterojunction with unique spatial and interfacial charge flow steering via a facile strategy.
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