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Controllable Synthesis of Core-Shell Bi@Amorphous Bi2O3 Nanospheres with Tunable Optical and Photocatalytic Activity for NO Removal
Chen, Meijuan1,2; Li, Yan2,3; Wang, Zhenyu1,2; Gao, Yunxia2,3; Huang, Yu2,3; Cao, Junji2,3; Ho, Wingkei4; Lee, Shuncheng5
2017-09-20
发表期刊INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
卷号56期号:37页码:10251-10258
文章类型Article
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标题词Science & Technology ; Technology
DOI10.1021/acsiecr.7b02497
关键词[WOS]VISIBLE-LIGHT PHOTOCATALYSIS ; PLASMONIC PHOTOCATALYSIS ; BISMUTH OXIDE ; METAL ; NANOSTRUCTURES ; NANOCOMPOSITES ; MICROSPHERES ; DEGRADATION ; ULTRAVIOLET ; FABRICATION
收录类别SCI
语种英语
WOS研究方向Engineering
WOS类目Engineering, Chemical
WOS记录号WOS:000411659400005
引用统计
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/5416
专题粉尘与环境研究室
作者单位1.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian 710049, Shaanxi, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Shaanxi, Peoples R China
3.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710061, Shaanxi, Peoples R China
4.Educ Univ Hong Kong, Dept Sci & Environm Studies, Hong Kong, Hong Kong, Peoples R China
5.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Hong Kong, Peoples R China
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GB/T 7714
Chen, Meijuan,Li, Yan,Wang, Zhenyu,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 Chen, Meijuan.,Li, Yan.,Wang, Zhenyu.,Gao, Yunxia.,Huang, Yu.,...&Lee, Shuncheng.(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 Chen, Meijuan,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.
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