Achievement of visible-light-driven Z-scheme overall water splitting using barium-modified Ta3N5 as a H-2-evolving photocatalyst

	Achievement of visible-light-driven Z-scheme overall water splitting using barium-modified Ta3N5 as a H-2-evolving photocatalyst
	Dong, Beibei 1,2; Zhang, Fuxiang 1; Li, Can 1; Chen, Shanshan 1; Li, Mingrun 1; Ding, Qian 1,2; Qi, Yu 1,2; Li, Zheng 1,2; Cui, Junyan 1,3
刊名	CHEMICAL SCIENCE
	2017
卷号	8 期号:1 页码:437-443
英文摘要	Ta3N5 is one of the most promising photocatalyst candidates for solar water splitting, but it still remains challenging to achieve overall water splitting via Ta3N5-based photocatalysts regardless of whether it uses a one step or two step method. Here we will address the relatively poor photocatalytic proton reduction of Ta3N5 with an effort for the promotion of charge separation via barium modification. Onepot nitridation of barium nitrate-impregnated Ta2O5 precursor was adopted here for the synthesis of Ta3N5 accompanied with the creation of a Ta3N5/BaTaO2N heterostructure and surface passivation. Due to the synergetic effect of the improved interfacial charge separation and the decreased defect density, the photocatalytic H-2 evolution rate of barium-modified Ta3N5 is effectively promoted. Encouraged by this, a visible-light-driven Z-scheme overall water splitting system was successfully constructed by using the barium-modified Ta3N5 as a H-2-evolving photocatalyst, together with a PtOx/WO3 and IO3-/I- pair as an O-2-evolving photocatalyst and a redox mediator, respectively.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Chemistry, Multidisciplinary
研究领域[WOS]	Chemistry
关键词[WOS]	HYDROGEN-PRODUCTION ; CARBON NITRIDE ; SOLAR ; OXIDATION ; PHOTOANODE ; IRRADIATION ; REDUCTION ; EVOLUTION ; NANOPARTICLES ; PERFORMANCE
收录类别	SCI
语种	英语
WOS记录号	WOS:000391454500050
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/151876]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Chinese Acad Sci, Dalian Natl Lab Clean Energy, State Key Lab Catalysis iChEM, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Jilin Univ, Coll Chem, Key Lab Surface & Interface Chem Jilin Prov, Changchun 130021, Peoples R China
推荐引用方式 GB/T 7714	Dong, Beibei,Zhang, Fuxiang,Li, Can,et al. Achievement of visible-light-driven Z-scheme overall water splitting using barium-modified Ta3N5 as a H-2-evolving photocatalyst[J]. CHEMICAL SCIENCE,2017,8(1):437-443.
APA	Dong, Beibei.,Zhang, Fuxiang.,Li, Can.,Chen, Shanshan.,Li, Mingrun.,...&Cui, Junyan.(2017).Achievement of visible-light-driven Z-scheme overall water splitting using barium-modified Ta3N5 as a H-2-evolving photocatalyst.CHEMICAL SCIENCE,8(1),437-443.
MLA	Dong, Beibei,et al."Achievement of visible-light-driven Z-scheme overall water splitting using barium-modified Ta3N5 as a H-2-evolving photocatalyst".CHEMICAL SCIENCE 8.1(2017):437-443.