Controllable Synthesis of Core-Shell Bi@Amorphous Bi2O3 Nanospheres with Tunable Optical and Photocatalytic Activity for NO Removal

doi:10.1021/acsiecr.7b02497

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	Controllable Synthesis of Core-Shell Bi@Amorphous Bi2O3 Nanospheres with Tunable Optical and Photocatalytic Activity for NO Removal
	Gao, Yunxia 1,5; Wang, Zhenyu 4,5; Huang, Yu 1,5; Ho, Wingkei 2; Cao, Junji 1,5; Lee, Shuncheng 3; Chen, Meijuan 4,5; Li, Yan 1,5
刊名	INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
	2017-09-20
卷号	56 期号:37 页码:10251-10258
DOI	10.1021/acsiecr.7b02497
文献子类	Article
英文摘要	The size, morphology, and structure of a Bi nanoparticle can significantly affect its photocatalytic performance. In this study, core shell structured Bi@amorphous Bi2O3 nanospheres were synthesized through a one-step solvothermal method, and the reaction mechanisms on NO removal were proposed. It was found that Bi nanoparticles can generate charge carriers by surface plasma resonance (SPR) under visible light irradiation, while the surface amorphous Bi2O3 layer can facilitate the charge carriers' separation. The Bi@ Bi2O3 sample with the synthesis time of 18 h exhibited superior visible light photocatalytic activity for NO degradation, attributed to the suited size and suitable amorphous Bi2O3 layer. O-center dot(2)-, O-1(2), and (OH)-O-center dot radicals were identified as the main reactive species involved in the photocatalysis processes. Moreover;the enhancement mechanisms of photocatalytic NO removal over Bi@Bi2O3 samples were discussed. This study demonstrated that the fabrication of core shell structured Bi@Bi2O3 is a good strategy for effective air pollution control.
WOS关键词	VISIBLE-LIGHT PHOTOCATALYSIS ; PLASMONIC PHOTOCATALYSIS ; BISMUTH OXIDE ; METAL ; NANOSTRUCTURES ; NANOCOMPOSITES ; MICROSPHERES ; DEGRADATION ; ULTRAVIOLET ; FABRICATION
WOS研究方向	Engineering
语种	英语
WOS记录号	WOS:000411659400005
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/5416]
专题	地球环境研究所_粉尘与环境研究室
作者单位	1.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710061, Shaanxi, Peoples R China 2.Educ Univ Hong Kong, Dept Sci & Environm Studies, Hong Kong, Hong Kong, Peoples R China 3.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Hong Kong, Peoples R China 4.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian 710049, Shaanxi, Peoples R China 5.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Gao, Yunxia,Wang, Zhenyu,Huang, Yu,et al. Controllable Synthesis of Core-Shell Bi@Amorphous Bi2O3 Nanospheres with Tunable Optical and Photocatalytic Activity for NO Removal[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2017,56(37):10251-10258.
APA	Gao, Yunxia.,Wang, Zhenyu.,Huang, Yu.,Ho, Wingkei.,Cao, Junji.,...&Li, Yan.(2017).Controllable Synthesis of Core-Shell Bi@Amorphous Bi2O3 Nanospheres with Tunable Optical and Photocatalytic Activity for NO Removal.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,56(37),10251-10258.
MLA	Gao, Yunxia,et al."Controllable Synthesis of Core-Shell Bi@Amorphous Bi2O3 Nanospheres with Tunable Optical and Photocatalytic Activity for NO Removal".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 56.37(2017):10251-10258.