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 |
DOI | 10.1016/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 | |
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 |
推荐引用方式 GB/T 7714 | 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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