Elemental Bismuth-Graphene Heterostructures for Photocatalysis from Ultraviolet to Infrared Light

doi:10.1021/acscatal.7b02170

	Elemental Bismuth-Graphene Heterostructures for Photocatalysis from Ultraviolet to Infrared Light
	Zhao LN(赵丽娜); Zhao YL(赵宇亮); Yan, L; Gu, ZJ; Zheng, XP; Zhao, YL; Yan L(晏亮); Gu ZJ(谷战军); Zheng XP(郑晓鹏); Zhang CY(张晨阳)
刊名	ACS CATALYSIS
	2017
卷号	7 期号:10 页码:7043-7050
关键词	elemental bismuth graphene heterostructures photocatalysis infrared light
ISSN号	2155-5435
DOI	10.1021/acscatal.7b02170
文献子类	Article
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
语种	英语
WOS记录号	WOS:000412795700073
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/284993]
专题	高能物理研究所_多学科研究中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Zhao LN,Zhao YL,Yan, L,et al. Elemental Bismuth-Graphene Heterostructures for Photocatalysis from Ultraviolet to Infrared Light[J]. ACS CATALYSIS,2017,7(10):7043-7050.
APA	赵丽娜.,赵宇亮.,Yan, L.,Gu, ZJ.,Zheng, XP.,...&李旭.(2017).Elemental Bismuth-Graphene Heterostructures for Photocatalysis from Ultraviolet to Infrared Light.ACS CATALYSIS,7(10),7043-7050.
MLA	赵丽娜,et al."Elemental Bismuth-Graphene Heterostructures for Photocatalysis from Ultraviolet to Infrared Light".ACS CATALYSIS 7.10(2017):7043-7050.