Design and facile one-step synthesis of FeWO4/Fe2O3 di-modified WO3 with super high photocatalytic activity toward degradation of quasi-phenothiazine dyes

ISL OpenIR > 青海盐湖研究所知识仓储

	Design and facile one-step synthesis of FeWO4/Fe2O3 di-modified WO3 with super high photocatalytic activity toward degradation of quasi-phenothiazine dyes
	Wang, Huixiang 1,3; Wang, Conghui 1,3; Cui, Xinmin 1,3; Qin, Li 1,3; Ding, Ruimin 1; Wang, Liancheng 1; Liu, Zhong2 ; Zheng, Zhanfeng 1; Lv, Baoliang 1
	2018-02-01
发表期刊	APPLIED CATALYSIS B-ENVIRONMENTAL
卷号	221 页码:169-178
关键词	Modified Wo3 Photodegradation Quasi-phenothiazine Dyes Fenton Reaction
摘要	For most of WO3, a visible-light-driven photocatalyst, its barrier in photocatalytic degradation is the low conduction band (CB) potential that can not reduce O-2 to O-2(-) center dot and HO2 center dot radicals and thus results in fast recombination of electron/hole. With this in mind, a new active FeWO4/Fe2O3 di-modified WO3 was designed and prepared via by a straightforward but effective strategy by introducing of FeWO4 and Fe2O3 clusters (or nanoparticles) on WO3. The performance of di-modified WO3 showed super high photocatalytic activity in degrading quasi-phenothiazine dyes of Methylene blue (MB), Toluidine blue (TB), Azure I (AI) and Acridine orange (AO) under visible light irradiation, and the corresponding k values are 5.3, 4.4, 3.8 and 5.8 times larger than that of pure WO3, respectively. This improvement was mainly due to the fact that photoexcited electrons can migrate to the matching CB of firmly and highly dispersed FeWO4 and Fe2O3, then be consumed rapidly by a valence decrease from Fe3+ to Fe2+ and Fenton reaction between Fe2+ and H2O2. And the strong adsorption of Fe species toward N and S (or N) elements in quasi-phenothiazine dyes, also positively promoted the efficiency of degradation.
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/6277
专题	青海盐湖研究所知识仓储盐湖资源与化学实验室
作者单位	1.Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Shanxi, Peoples R China 2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Salt Lake Resources & Chem, Xining 810008, Qinghai, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang, Huixiang,Wang, Conghui,Cui, Xinmin,et al. Design and facile one-step synthesis of FeWO4/Fe2O3 di-modified WO3 with super high photocatalytic activity toward degradation of quasi-phenothiazine dyes[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2018,221:169-178.
APA	Wang, Huixiang.,Wang, Conghui.,Cui, Xinmin.,Qin, Li.,Ding, Ruimin.,...&Lv, Baoliang.(2018).Design and facile one-step synthesis of FeWO4/Fe2O3 di-modified WO3 with super high photocatalytic activity toward degradation of quasi-phenothiazine dyes.APPLIED CATALYSIS B-ENVIRONMENTAL,221,169-178.
MLA	Wang, Huixiang,et al."Design and facile one-step synthesis of FeWO4/Fe2O3 di-modified WO3 with super high photocatalytic activity toward degradation of quasi-phenothiazine dyes".APPLIED CATALYSIS B-ENVIRONMENTAL 221(2018):169-178.