Constructing Z-scheme SnO2/N-doped carbon quantum dots/ZnSn(OH)(6) nanohybrids with high redox ability for NOx removal under VIS-NIR light

doi:10.1039/c9ta03504d

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	Constructing Z-scheme SnO2/N-doped carbon quantum dots/ZnSn(OH)(6) nanohybrids with high redox ability for NOx removal under VIS-NIR light
	Lu, Yanfeng 1,4,6; Huang, Yu 1,2,4; Cao, Jun-ji 1,2,4; Li, Haiwei 5; Ho, Wingkei 3; Lee, Shun Cheng 2
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2019-07-14
卷号	7 期号:26 页码:15782-15793
ISSN号	2050-7488
DOI	10.1039/c9ta03504d
通讯作者	Huang, Yu(huangyu@ieecas.cn)
英文摘要	Photocatalysts with a wide optical response range and high oxidation ability are essential for their application in air pollution control. In this study, mesoporous SnO2/NCDs/ZnSn(OH)(6) (NCDs = N-doped carbon quantum dots) Z-scheme nanohybrids were synthesized for the first time using an in situ strategy. The ternary Z-scheme catalysts showed significantly enhanced visible and near-infrared light-driven photocatalytic activities for nitric oxide (NO) removal (37%), while the toxic nitrogen dioxide (NO2) intermediate was suppressed completely. The Z-schematic transfer mechanism was confirmed through characterizing the intrinsic properties of the as-prepared sample. The NCDs, as an electron transport bridge, improve both the broad-spectrum light-harvesting ability and the rapid separation of photoinduced electrons. Compared with the binary counterparts, the SnO2/NCDs/ZnSn(OH)(6) ternary nanohybrid can generate more reactive oxygen-containing radicals during the photocatalytic reaction, owing to its ability to supply sufficient free surface OH. This study provides insights into the heterogeneous photocatalytic Z-scheme reaction mechanism.
资助项目	National Key Research and Development Program of China[2016YFA0203000] ; National Key Research and Development Program of China[2017YFC0212200] ; National Science Foundation of China[41573138] ; National Science Foundation of China[51878644] ; Key Research and Development Program of Shaanxi Province[2018ZDCXL-SF-02-04] ; Hundred Talent Program of the Chinese Academy of Sciences
WOS关键词	ENHANCED PHOTOCATALYTIC ACTIVITY ; CHARGE-TRANSFER ; BI METAL ; ZNSN(OH)(6) ; MECHANISM ; DEGRADATION ; PERFORMANCE ; ADSORPTION ; COMPOSITE ; BENZENE
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000474271200028
资助机构	National Key Research and Development Program of China ; National Science Foundation of China ; Key Research and Development Program of Shaanxi Province ; Hundred Talent Program of the Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/13745]
专题	地球环境研究所_粉尘与环境研究室第四纪科学与全球变化卓越创新中心
通讯作者	Huang, Yu
作者单位	1.Chinese Acad Sci, SKLLQG, Inst Earth Environm, Xian 710061, Shaanxi, Peoples R China 2.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Shaanxi, Peoples R China 3.Hong Kong Inst Educ, Dept Sci & Environm Studies, Hong Kong, Peoples R China 4.Chinese Acad Sci, Key Lab Aerosol Chem & Phys, Inst Earth Environm, Xian 710061, Shaanxi, Peoples R China 5.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hung Hom, Hong Kong, Peoples R China 6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Lu, Yanfeng,Huang, Yu,Cao, Jun-ji,et al. Constructing Z-scheme SnO2/N-doped carbon quantum dots/ZnSn(OH)(6) nanohybrids with high redox ability for NOx removal under VIS-NIR light[J]. JOURNAL OF MATERIALS CHEMISTRY A,2019,7(26):15782-15793.
APA	Lu, Yanfeng,Huang, Yu,Cao, Jun-ji,Li, Haiwei,Ho, Wingkei,&Lee, Shun Cheng.(2019).Constructing Z-scheme SnO2/N-doped carbon quantum dots/ZnSn(OH)(6) nanohybrids with high redox ability for NOx removal under VIS-NIR light.JOURNAL OF MATERIALS CHEMISTRY A,7(26),15782-15793.
MLA	Lu, Yanfeng,et al."Constructing Z-scheme SnO2/N-doped carbon quantum dots/ZnSn(OH)(6) nanohybrids with high redox ability for NOx removal under VIS-NIR light".JOURNAL OF MATERIALS CHEMISTRY A 7.26(2019):15782-15793.