Efficient inhibition of photogenerated electron-hole recombination through persulfate activation and dual-pathway degradation of micropollutants over iron molybdate

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境水质学国家重点实验室

	Efficient inhibition of photogenerated electron-hole recombination through persulfate activation and dual-pathway degradation of micropollutants over iron molybdate
	Wang, Liang ; Huang, Xuan ; Han, Muen ; Lyu, Lai ; Li, Tong ; Gao, Yaowen ; Zeng, Qingyi ; Hu, Chun
刊名	APPLIED CATALYSIS B-ENVIRONMENTAL
	2019-11-15
卷号	257 页码:-
关键词	Iron molybdate Photocatalysis Electron-hole recombination Persulfate activation Micropollutant degradation
ISSN号	0926-3373
英文摘要	Photogenerated electron-hole recombination has been a bottleneck problem for photocatalytic reactions for a long time. Herein, we propose an efficient solution strategy through capturing electrons and holes with environmental factors. In this study, nanoscale iron molybdate (Fe-2(MoO4)(3)) was successfully synthesized, characterized and used in a heterogeneous photo-combined persulfate (PS) activation (HPPA) process for micropollutant removal. The reaction rate in this system was (similar to)98 and (similar to)59 times higher for Fenton-like and photocatalytic oxidation alone, respectively, which was attributed to strong synergistic effects of HPPA process. During the HPPA reaction, PS could quickly capture the photogenerated electrons to produce sulfate radicals (SO4 center dot-), which was further converted to hydroxyl radicals ((OH)-O-center dot) in water. Induced by PS, the electron-rich pollutants could actively capture the holes and be oxidized and degraded. This synergistic process not only inhibited the electron-hole recombination but also enabled rapid dual-pathway degradation of pollutants through free radical attack and hole oxidation.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/42643]
专题	生态环境研究中心_环境水质学国家重点实验室
作者单位	1.Tianjin Polytech Univ, State Key Lab Separat Membranes & Membrane Proc, Tianjin 300387, Peoples R China 2.Tianjin Polytech Univ, Sch Environm & Chem Engn, Tianjin 300387, Peoples R China 3.Guangzhou Univ, Inst Environm Res Greater Bay, Minist Educ, Key Lab Water Qual & Conservat Pearl River Delta, Guangzhou 510006, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Wang, Liang,Huang, Xuan,Han, Muen,et al. Efficient inhibition of photogenerated electron-hole recombination through persulfate activation and dual-pathway degradation of micropollutants over iron molybdate[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2019,257:-.
APA	Wang, Liang.,Huang, Xuan.,Han, Muen.,Lyu, Lai.,Li, Tong.,...&Hu, Chun.(2019).Efficient inhibition of photogenerated electron-hole recombination through persulfate activation and dual-pathway degradation of micropollutants over iron molybdate.APPLIED CATALYSIS B-ENVIRONMENTAL,257,-.
MLA	Wang, Liang,et al."Efficient inhibition of photogenerated electron-hole recombination through persulfate activation and dual-pathway degradation of micropollutants over iron molybdate".APPLIED CATALYSIS B-ENVIRONMENTAL 257(2019):-.