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Electrochemical fabrication of NZVI/TiO2nano-tube arrays photoelectrode and its enhanced visible light photocatalytic performance and mechanism for degradation of 4-chlorphenol
Ma, Qiuling1; Zhang, Huixuan1; Deng, Xiaoyong1; Cui, Yuqi1; Cheng, Xiuwen1,2,4,5; Li, Xiaoli1; Xie, Mingzheng1; Cheng, Qingfeng3; Li, Bo2
2017
发表期刊Separation and Purification Technology
ISSN13835866
卷号182页码:144-150
摘要In this study, nano-scale zero-valent iron (NZVI) decorated TiO2nano-tube arrays (NZVI/TiO2NTAs) photoelectrode was fabricated through anodization process, followed by galvanostatic electrodeposition strategy. Afterwards, physicochemical properties of the resulting NZVI/TiO2NTAs samples were systematically studied by SEM, XRD, XPS, UV–vis DRS and photoelectrochemical (PECH) measurements. Results indicated that NZVI/TiO2NTAs photoelectrode exhibited greatly enhanced visible light absorbance and high photogenerated charge separation efficiency. However, after photocatalytic (PC) reaction, NVZI particles were converted to α-Fe2O3species, which would further improve the visible light absorbance and PC efficiency, which was confirmed by the further enhanced visible light PC performance for decomposition of 4-chlorphenol (4-CP) and generation of [rad]OH radicals. Furthermore, the enhanced visible light mechanism of NZVI/TiO2NTAs photoelectrode was detailed discussed. This study provides a versatile strategy to fabricate high-efficient catalysts which could be used in the high-toxic and refractory micro-pollutants elimination in water body. © 2017 Elsevier B.V.
DOI10.1016/j.seppur.2017.03.047
EI入藏号20171403525847
EI主题词Light
EI分类号445.1 Water Treatment Techniques - 453 Water Pollution - 482.2 Minerals - 741.1 Light/Optics - 761 Nanotechnology - 804.2 Inorganic Compounds - 913.1 Production Engineering
引用统计
文献类型期刊论文
条目标识符http://ir.sic.ac.cn/handle/331005/25744
专题中国科学院上海硅酸盐研究所
作者单位1.Key Laboratory of Western China's Environmental Systems (Ministry of Education), Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou; 730000, China;
2.Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lake, Chinese Academy of Sciences, Xinning Road 18, Chengxi District, Xining; 810008, China;
3.College of Resources and Environment, Chengdu University of Information Technology, Chengdu; 610225, China;
4.State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Dingxi Road, Changning District, Shanghai; 2000050, China;
5.Jiangsu Engineering Technology Research Center of Environmental Cleaning Materials (CEM), Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Sciences and Engineering, Nanjing University of Information Science and Technology, Nanjing; 210044, China
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GB/T 7714
Ma, Qiuling,Zhang, Huixuan,Deng, Xiaoyong,et al. Electrochemical fabrication of NZVI/TiO2nano-tube arrays photoelectrode and its enhanced visible light photocatalytic performance and mechanism for degradation of 4-chlorphenol[J]. Separation and Purification Technology,2017,182:144-150.
APA Ma, Qiuling.,Zhang, Huixuan.,Deng, Xiaoyong.,Cui, Yuqi.,Cheng, Xiuwen.,...&Li, Bo.(2017).Electrochemical fabrication of NZVI/TiO2nano-tube arrays photoelectrode and its enhanced visible light photocatalytic performance and mechanism for degradation of 4-chlorphenol.Separation and Purification Technology,182,144-150.
MLA Ma, Qiuling,et al."Electrochemical fabrication of NZVI/TiO2nano-tube arrays photoelectrode and its enhanced visible light photocatalytic performance and mechanism for degradation of 4-chlorphenol".Separation and Purification Technology 182(2017):144-150.
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