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Design and facile one-step synthesis of FeWO4/Fe2O3 di-modified WO3 with super high photocatalytic activity toward degradation of quasi-phenothiazine dyes
Wang, Huixiang1,3; Wang, Conghui1,3; Cui, Xinmin1,3; Qin, Li1,3; Ding, Ruimin1; Wang, Liancheng1; Liu, Zhong2; Zheng, Zhanfeng1; Lv, Baoliang1
2018-02-01
发表期刊APPLIED CATALYSIS B-ENVIRONMENTAL
卷号221页码:169-178
文章类型Article
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.
关键词Modified Wo3 Photodegradation Quasi-phenothiazine Dyes Fenton Reaction
WOS标题词Science & Technology ; Physical Sciences ; Technology
关键词[WOS]VISIBLE-LIGHT IRRADIATION ; OXYGEN REDUCTION REACTION ; TUNGSTEN-OXIDE ; HYDROTHERMAL SYNTHESIS ; ALPHA-FE2O3 ; FABRICATION ; TIO2 ; FE ; NANOPARTICLE ; PERFORMANCE
收录类别SCI
语种英语
WOS研究方向Chemistry ; Engineering
WOS类目Chemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
WOS记录号WOS:000414109700018
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
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
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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.
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