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Elemental bismuth-graphene heterostructures for photocatalysis from ultraviolet to infrared light

文献类型:期刊论文

作者Yan, Liang1,2,3; Gu, Zhanjun1,2,3; Zheng, Xiaopeng1,2; Zhang, Chenyang1,2; Li, Xu1,2; Zhao, Lina1,2; Zhao, Yuliang1,2,3
刊名Acs catalysis
出版日期2017-10-01
卷号7期号:10页码:7043-7050
关键词Elemental bismuth Graphene Heterostructures Photocatalysis Infrared light
ISSN号2155-5435
DOI10.1021/acscatal.7b02170
通讯作者Gu, zhanjun(zjgu@ihep.ac.cn) ; Zhao, yuliang(zhaoyl@nanoctr.cn)
英文摘要For an optimized use of solar energy, the fabrication of photocatalysts that are sufficiently stable and responsible for harvesting full-spectrum light from ultraviolet to infrared is required to solve environmental issues and the water shortage crisis but remains a great challenge so far. here, we show that elemental bismuth-graphene heterostructures synthesized by a solvothermal method followed by calcination have high photocatalytic activity under not only ultraviolet but also visible and even infrared light. these heterostructures are very stable after many photocatalytic cycles, and no leaching of bismuth is observed. analysis of the morphological structures indicates that the heterostructures remain unchanged after repeated cycling, while displaying no appreciable loss in activity. furthermore, the experimental and theoretical results demonstrate that the heterostructures have the sufficient band gap energy for simultaneously absorbing across the whole solar spectrum and producing photogenerated electrons which can be shuttled across the elemental bismuth-graphene interface, ultimately turning out to be responsible for the degradation reaction. these findings may help the development of elemental photocatalysts with compatible activities from ultraviolet to infrared regions and hence enable solar energy conversion.
WOS关键词VISIBLE-LIGHT ; THIN-FILMS ; NO REMOVAL ; DEGRADATION ; MECHANISMS ; OXIDE ; SEMICONDUCTOR ; ELECTRON ; SURFACE ; TIO2
WOS研究方向Chemistry
WOS类目Chemistry, Physical
语种英语
WOS记录号WOS:000412795700073
出版者AMER CHEMICAL SOC
URI标识http://www.irgrid.ac.cn/handle/1471x/2177134
专题高能物理研究所
通讯作者Gu, Zhanjun; Zhao, Yuliang
作者单位1.Chinese Acad Sci, Inst High Energy Phys, CAS Key Lab Biomed Effects Nanomat & Nanosafety, Beijing 100049, Peoples R China
2.Natl Ctr Nanosci & Technol China, CAS Ctr Excellence Nanosci, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 101408, Peoples R China
推荐引用方式
GB/T 7714
Yan, Liang,Gu, Zhanjun,Zheng, Xiaopeng,et al. Elemental bismuth-graphene heterostructures for photocatalysis from ultraviolet to infrared light[J]. Acs catalysis,2017,7(10):7043-7050.
APA Yan, Liang.,Gu, Zhanjun.,Zheng, Xiaopeng.,Zhang, Chenyang.,Li, Xu.,...&Zhao, Yuliang.(2017).Elemental bismuth-graphene heterostructures for photocatalysis from ultraviolet to infrared light.Acs catalysis,7(10),7043-7050.
MLA Yan, Liang,et al."Elemental bismuth-graphene heterostructures for photocatalysis from ultraviolet to infrared light".Acs catalysis 7.10(2017):7043-7050.

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来源:高能物理研究所

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