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Visible-light-driven photocatalyst of La-N-codoped TiO2 nano-photocatalyst: Fabrication and its enhanced photocatalytic performance and mechanism
Li, Junjing1; Li, Bo2; Li, Jiejing3; Liu, Junliang4; Wang, Liang1; Zhang, Hongwei1; Zhang, Zhaohui1; Zhao, Bin1
2015-05-25
发表期刊JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
卷号25页码:16-21
文章类型Article
摘要In this study, La, N codoped TiO2 (La-N-TiO2) nano-photocatalyst was fabricated through simple sot-gel method. The resulting samples were characterized through X-ray diffraction (XRD), scanning electrons microscope (SEM), transmission electrons microscope (TEM), X-ray photoelectron spectroscopy (XPS) and UV-visible light diffuse reflection spectroscopy (UV-vis DRS). Results revealed that La elements were not implanted into the structure of TiO2 but existed as the form of Ti-O-La bonds in the interstitial site, while N dopants were incorporated into the lattice of TiO2 and coexisted in the substitutional N (N-Ti-O) and interstitial N (Ti-O-N) in the La-N-TiO2 catalyst, thereby resulting in the formation of new impurity energy level between the forbidden band and greatly enhancement of light absorption ability in visible light region. The enhanced visible light driven (VLD) photocatalytic (PC) performance for the degradation of phenol aqueous solution could be attributed to the intense light absorbance in visible light region and high separation efficiency of photogenerated charge carriers. (C) 2014 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
关键词La-n-codoped Tio2 Photocatalysis Phenol
WOS标题词Science & Technology ; Physical Sciences ; Technology
关键词[WOS]NITROGEN ; DEGRADATION ; NANOPARTICLES ; IRRADIATION ; FILMS
收录类别SCI
语种英语
WOS研究方向Chemistry ; Engineering
WOS类目Chemistry, Multidisciplinary ; Engineering, Chemical
WOS记录号WOS:000356200400005
引用统计
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/6144
专题青海盐湖研究所知识仓储
盐湖资源综合利用工程技术中心
作者单位1.Tianjin Polytech Univ, Sch Environm & Chem Engn, Tianjin 300387, Peoples R China
2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Peoples R China
3.Hebei Yuanda Secur Investment Consulting Co Ltd, Shijiazhuang 050010, Peoples R China
4.Agr Univ Hebei, Inst Urban & Rural Construct, Baoding 071001, Peoples R China
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GB/T 7714
Li, Junjing,Li, Bo,Li, Jiejing,et al. Visible-light-driven photocatalyst of La-N-codoped TiO2 nano-photocatalyst: Fabrication and its enhanced photocatalytic performance and mechanism[J]. JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY,2015,25:16-21.
APA Li, Junjing.,Li, Bo.,Li, Jiejing.,Liu, Junliang.,Wang, Liang.,...&Zhao, Bin.(2015).Visible-light-driven photocatalyst of La-N-codoped TiO2 nano-photocatalyst: Fabrication and its enhanced photocatalytic performance and mechanism.JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY,25,16-21.
MLA Li, Junjing,et al."Visible-light-driven photocatalyst of La-N-codoped TiO2 nano-photocatalyst: Fabrication and its enhanced photocatalytic performance and mechanism".JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY 25(2015):16-21.
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