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Synthesis and characterization of Bi-BiPO4 nanocomposites as plasmonic photocatalysts for oxidative NO removal
Chen, Meijuan1,2,3; Li, Xinwei2,4; Huang, Yu2; Yao, Jie2; Li, Yan2; Lee, Shun-cheng4; Ho, Wingkei5; Huang, Tingting2; Chen, Kehao3
Corresponding AuthorChen, Meijuan(chenmeijuan@xjtu.edu.cn) ; Huang, Yu(huangyu@ieecas.cn)
2020-05-30
Source PublicationAPPLIED SURFACE SCIENCE
ISSN0169-4332
Volume513Pages:8
AbstractBi 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.
KeywordPlasmonic photocatalysis NO removal Bi metal O-2 and NO activation
DOI10.1016/j.apsusc.2020.145775
WOS KeywordBI METAL ; FT-IR ; BIPO4 ; OXIDE ; DEGRADATION ; ADSORPTION ; DIOXIDE ; PATHWAY ; IDENTIFICATION ; NANOMATERIALS
Indexed BySCI ; SCI
Language英语
Funding ProjectNational 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 Research AreaChemistry ; Materials Science ; Physics
Funding OrganizationNational 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
WOS SubjectChemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000523184600100
PublisherELSEVIER
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Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/12555
Collection粉尘与环境研究室
Corresponding AuthorChen, Meijuan; Huang, Yu
Affiliation1.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian 710049, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, SKLLQG, Xian 710061, Peoples R China
3.Minist Nat Resources China, Key Lab Degraded & Unused Land Consolidat Engn, Xian 710075, Peoples R China
4.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Peoples R China
5.Educ Univ Hong Kong, Dept Sci & Environm Studies, Hong Kong, Peoples R China
Recommended Citation
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.
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