光催化
可重用性
激进的
降级(电信)
化学
可见光谱
化学工程
氧气
催化作用
薄膜
化学气相沉积
光化学
氧化还原
材料科学
纳米技术
无机化学
有机化学
光电子学
计算机科学
工程类
电信
程序设计语言
软件
作者
Zheng Lian,Ting Wu,Xining Zhang,Shuangfei Cai,Youlin Xiong,Rong Yang
标识
DOI:10.1016/j.cej.2023.143774
摘要
Advanced oxidation processes (AOPs) based on photocatalysis and peroxymonosulfate (PMS) activation have shown potential in antibiotics degradation by generating series of reactive oxygen species (ROS). However, construction of AOP materials with easy preparation and high reusability is still a challenge. Herein, we prepared a Mo2C/MoOx thin film through one-step chemical vapor deposition (CVD), and this film could synergistically promote PMS activation and visible-light photocatalysis due to the redox cycles of multiple Mo valence states and staggered bandgap structures of Mo-based components in the film. The generated oxygen species (mainly 1O2 radical, accompanying by other ones involving OH, SO4− and O2− radicals) could efficiently degrade the uneasily degradable antibiotics, tetracycline (TC), with a removal efficiency of 91.7 % within 60 min. Meanwhile, the film could maintain the TC degradation capability for at least 10 cycles, exhibiting promising reusability. The work could provide feasible approaches to develop easily prepared AOP thin film materials for antibiotic pollutant degradation.
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