Synthesis and characterization of Bi-BiPO4 nanocomposites as plasmonic photocatalysts for oxidative NO removal
文献类型:期刊论文
作者 | Chen, Meijuan3,4,5; Li, Xinwei2,4; Huang, Yu4; Yao, Jie4; Li, Yan4; Lee, Shun-cheng2; Ho, Wingkei1; Huang, Tingting4; Chen, Kehao3 |
刊名 | APPLIED SURFACE SCIENCE |
出版日期 | 2020-05-30 |
卷号 | 513页码:8 |
ISSN号 | 0169-4332 |
关键词 | Plasmonic photocatalysis NO removal Bi metal O-2 and NO activation |
DOI | 10.1016/j.apsusc.2020.145775 |
通讯作者 | Chen, Meijuan(chenmeijuan@xjtu.edu.cn) ; Huang, Yu(huangyu@ieecas.cn) |
英文摘要 | Bi metal-BiPO4(Bi-BPO) nanocomposites formed by in situ solvothermal reduction were employed as plasmonic photocatalysts for oxidative NO removal, achieving a removal efficiency of 32.8% in a continuous NO flow (400 ppb) under illumination with visible light. This high performance was ascribed to the generation of energetic hot electrons (and their subsequent surface chemical reactions) due to the surface plasmon resonance (SPR) of Bi metal, as validated by numerical simulations. The combined results of density functional theory (DFT) calculations and electrochemical analysis revealed that hot electrons are transferred from Bi metal to BPO via the Bi-BPO interface. DFT calculations further showed that enhanced O-2 activation on the Bi-BPO interface facilitates the generation of both superoxide (O-center dot(2)- ) and hydroxyl ((OH)-O-center dot) radicals, as confirmed by electron spin resonance, while in situ DRIFTS analysis demonstrated that NO is activated on the Bi-BPO interface and then oxidized to nitrates. Thus, this work highlights the SPR effects of Bi metal and promoted O-2 and NO activation in plasmonic photocatalysis, showing that the adopted approach can be generalized to design efficient and costeffective photocatalytic systems for the removal of other gaseous pollutants. |
WOS关键词 | BI METAL ; FT-IR ; BIPO4 ; OXIDE ; DEGRADATION ; ADSORPTION ; DIOXIDE ; PATHWAY ; IDENTIFICATION ; NANOMATERIALS |
资助项目 | National Science Foundation of China[41877481] ; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, CAS[SKLLQG1729] ; Fundamental Research Funds for the Central Universities[xjj2018249] ; Key Laboratory of Degraded and Unused Land Consolidation Engineering, the Ministry of Natural Resources[SZDJ2019-15] ; China Postdoctoral Science Foundation[2018M643669] ; National Key Research and Development Program of China[2016YFA0203000] |
WOS研究方向 | Chemistry ; Materials Science ; Physics |
语种 | 英语 |
出版者 | ELSEVIER |
WOS记录号 | WOS:000523184600100 |
资助机构 | National Science Foundation of China ; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, CAS ; Fundamental Research Funds for the Central Universities ; Key Laboratory of Degraded and Unused Land Consolidation Engineering, the Ministry of Natural Resources ; China Postdoctoral Science Foundation ; National Key Research and Development Program of China |
源URL | [http://ir.ieecas.cn/handle/361006/12554] |
专题 | 地球环境研究所_粉尘与环境研究室 |
通讯作者 | Chen, Meijuan; Huang, Yu |
作者单位 | 1.Educ Univ Hong Kong, Dept Sci & Environm Studies, Hong Kong, Peoples R China 2.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Peoples R China 3.Minist Nat Resources China, Key Lab Degraded & Unused Land Consolidat Engn, Xian 710075, Peoples R China 4.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, SKLLQG, Xian 710061, Peoples R China 5.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian 710049, Peoples R China |
推荐引用方式 GB/T 7714 | Chen, Meijuan,Li, Xinwei,Huang, Yu,et al. Synthesis and characterization of Bi-BiPO4 nanocomposites as plasmonic photocatalysts for oxidative NO removal[J]. APPLIED SURFACE SCIENCE,2020,513:8. |
APA | Chen, Meijuan.,Li, Xinwei.,Huang, Yu.,Yao, Jie.,Li, Yan.,...&Chen, Kehao.(2020).Synthesis and characterization of Bi-BiPO4 nanocomposites as plasmonic photocatalysts for oxidative NO removal.APPLIED SURFACE SCIENCE,513,8. |
MLA | Chen, Meijuan,et al."Synthesis and characterization of Bi-BiPO4 nanocomposites as plasmonic photocatalysts for oxidative NO removal".APPLIED SURFACE SCIENCE 513(2020):8. |
入库方式: OAI收割
来源:地球环境研究所
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