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Enhanced visible-light photo-oxidation of nitric oxide using bismuth-coupled graphitic carbon nitride composite heterostructures
Li, Yuhan1; Lv, Kangle1,3,4; Ho, Wingkei1,2; Zhao, Zaiwang1; Huang, Yu2
2017-02-01
发表期刊CHINESE JOURNAL OF CATALYSIS
卷号38期号:2页码:321-329
文章类型Article
摘要Pure bismuth (Bi) metal-modified graphitic carbon nitride (g-C3N4) composites (Bi-CN) with a pomegranate-like structure were prepared by an in situ method. The Bi-CN composites were used as photocatalysts for the oxidation of nitric oxide (NO) under visible-light irradiation. The inclusion of pure Bi metal in the g-C3N4 layers markedly improved the light absorption of the Bi-CN composites from the ultraviolet to the near-infrared region because of the typical surface plasmon resonance of Bi metal. The separation and transfer of photogenerated charge carriers were greatly accelerated by the presence of built-in Mott-Schottky effects at the interface between Bi metal and g-C3N4. As a result, the Bi-CN composite photocatalysts exhibited considerably enhanced efficiency in the photocatalytic removal of NO compared with that of Bi metal or g-C3N4 alone. The pomegranate-like structure of the Bi-CN composites and an explanation for their improved photocatalytic activity were proposed. This work not only provides a design for highly efficient g-C3N4-based photocatalysts through modification with Bi metal, but also offers new insights into the mechanistic understanding of g-C3N4-based photocatalysis.(C) 2016, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
关键词Bismuth Surface Plasmon Resonance Photo-oxidation Nitric Oxide Visible Light Graphitic Carbon Nitride
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1016/S1872-2067(16)62573-1
关键词[WOS]IN-SITU SYNTHESIS ; PHOTOCATALYTIC PROPERTIES ; HYDROGEN EVOLUTION ; G-C3N4 ; SEMICONDUCTORS ; NANOPARTICLES ; DEGRADATION
收录类别SCI
语种英语
WOS研究方向Chemistry ; Engineering
WOS类目Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
WOS记录号WOS:000396384300016
引用统计
被引频次:32[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/5507
专题粉尘与环境研究室
作者单位1.Educ Univ Hong Kong, Dept Sci & Environm Studies, Tai Po, Hong Kong, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Shanxi, Peoples R China
3.South Central Univ Nationalities, Coll Resources & Environm Sci, Key Lab Catalysis & Mat Sci, State Ethn Affairs Commiss, Wuhan 430074, Hubei, Peoples R China
4.South Central Univ Nationalities, Coll Resources & Environm Sci, Minist Educ, Wuhan 430074, Hubei, Peoples R China
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Li, Yuhan,Lv, Kangle,Ho, Wingkei,et al. Enhanced visible-light photo-oxidation of nitric oxide using bismuth-coupled graphitic carbon nitride composite heterostructures[J]. CHINESE JOURNAL OF CATALYSIS,2017,38(2):321-329.
APA Li, Yuhan,Lv, Kangle,Ho, Wingkei,Zhao, Zaiwang,&Huang, Yu.(2017).Enhanced visible-light photo-oxidation of nitric oxide using bismuth-coupled graphitic carbon nitride composite heterostructures.CHINESE JOURNAL OF CATALYSIS,38(2),321-329.
MLA Li, Yuhan,et al."Enhanced visible-light photo-oxidation of nitric oxide using bismuth-coupled graphitic carbon nitride composite heterostructures".CHINESE JOURNAL OF CATALYSIS 38.2(2017):321-329.
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