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Achievement of visible-light-driven Z-scheme overall water splitting using barium-modified Ta3N5 as a H-2-evolving photocatalyst
Qi, Yu1,2; Chen, Shanshan1; Li, Mingrun1; Ding, Qian1,2; Li, Zheng1,2; Cui, Junyan1,3; Dong, Beibei1,2; Zhang, Fuxiang1; Li, Can1
刊名CHEMICAL SCIENCE
2017
DOI10.1039/c6sc02750d
8期:1页:437-443
收录类别SCI
文章类型Article
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
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.
语种英语
WOS记录号WOS:000391454500050
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/151876
专题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
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Qi, Yu,Chen, Shanshan,Li, Mingrun,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 Qi, Yu.,Chen, Shanshan.,Li, Mingrun.,Ding, Qian.,Li, Zheng.,...&Li, Can.(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 Qi, Yu,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.
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