Plasmonic Bi/ZnWO4 Microspheres with Improved PhotocatalyticActivity on NO Removal under Visible Light

doi:10.1021/acssuschemeng.6b01852

IEECAS OpenIR > 粉尘与环境研究室

	Plasmonic Bi/ZnWO4 Microspheres with Improved PhotocatalyticActivity on NO Removal under Visible Light
	Gao,YX(Gao,Yunxia)[1]; Huang,Y(Huang,Yu)[1,2]; Li,Y(Li,Yan)[1]; Zhang,Q(Zhang,Qian)[1]; Cao,JJ(Cao,Junji)[1,2]; Ho,WK(Ho,Weigkei)[1,3]; Lee,SC(Lee,Shuncheng)[4]
	2016-12
发表期刊	ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷号	4 期号:12 页码:6912-6920
文章类型	期刊论文
摘要	In this work, bismuth (Bi) nanoparticle anchored ZnWO4 microspheres (Bi/ZnWO4) were prepared and used as robust and efficient photocatalysts for NO removal at parts-per-billion level under visible light irradiation. The as synthesized composite with a proper mass ratio of Bi (50%) displayed a higher reaction rate (0.067 min-I) than its single counterparts ZnWO4 (0.004 min(-1)) and Bi (0.027 min(-1)), respectively. Due to the surface plasmon resonance (SPR) effect of Bi nanoparticles, the Bi/ZnWO4 composites showed broad light absorption in the visible spectrum. Moreover, the formation of the Bi/ZnWO4 heterointerface promoted the separation of photoexcited electron hole pairs, which is demonstrated by the increased photocurrent density in comparison to the pristine materials. The above characteristics endowed the Bi/ZnWO4 composites with superior photocatalytic activity for NO removal. The radical scavanger tests revealed that the superoxide radical was the main active species to initiate NO oxidation, while the hydroxyl radical was not involved in the process. This study shows practical value in air pollutant abatement, because it provides an economical and feasible route to fabricate SPR-enhanced composite photocatalysts using earth abundant Bi material instead of noble metals.
关键词	METAL NANOPARTICLES INDOOR AIR PERFORMANCE DEGRADATION NANOCOMPOSITES OXIDATION PARTICLES CATALYSTS SPHERES FILMS
DOI	10.1021/acssuschemeng.6b01852
收录类别	SCI
语种	英语
引用统计	被引频次：85[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/10831
专题	粉尘与环境研究室
作者单位	1.Key Laboratory of Aerosol Chemistry & Physics, Institute of Earth Environment ; 2.State Key Laboratory of Loess and Quaternary Geology (SKLLQG), Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710061, China; 3.Department of Science and Environmental Studies, The Hong Kong Institute of Education, Hong Kong, China; 4.Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong
推荐引用方式 GB/T 7714	Gao,YX,Huang,Y,Li,Y,et al. Plasmonic Bi/ZnWO4 Microspheres with Improved PhotocatalyticActivity on NO Removal under Visible Light[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2016,4(12):6912-6920.
APA	Gao,YX.,Huang,Y.,Li,Y.,Zhang,Q.,Cao,JJ.,...&Lee,SC.(2016).Plasmonic Bi/ZnWO4 Microspheres with Improved PhotocatalyticActivity on NO Removal under Visible Light.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,4(12),6912-6920.
MLA	Gao,YX,et al."Plasmonic Bi/ZnWO4 Microspheres with Improved PhotocatalyticActivity on NO Removal under Visible Light".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 4.12(2016):6912-6920.

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