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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
Source PublicationCHEMICAL SCIENCE
2017
DOI10.1039/c6sc02750d
Volume8Issue:1Pages:437-443
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Multidisciplinary
WOS Research AreaChemistry
WOS KeywordHYDROGEN-PRODUCTION ; CARBON NITRIDE ; SOLAR ; OXIDATION ; PHOTOANODE ; IRRADIATION ; REDUCTION ; EVOLUTION ; NANOPARTICLES ; PERFORMANCE
AbstractTa3N5 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.
Language英语
WOS IDWOS:000391454500050
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/151876
Collection中国科学院大连化学物理研究所
Affiliation1.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
Recommended Citation
GB/T 7714
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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