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A wide visible light driven complex perovskite Ba(Mg1/3Ta2/3)O3-xNy photocatalyst for water oxidation and reduction
Cui, Junyan1,2; Liu, Taifeng2; Qi, Yu2; Zhao, Dan2; Jia, Mingjun1; Liu, Gang1; Zhang, Fuxiang2; Li, Can2
刊名JOURNAL OF MATERIALS CHEMISTRY A
2017-09-21
DOI10.1039/c7ta05879a
5期:35页:18870-18877
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
研究领域[WOS]Chemistry ; Energy & Fuels ; Materials Science
关键词[WOS]Z-SCHEME ; NITROGEN ; IRRADIATION ; HYDROGEN ; ENERGY ; OXIDES ; OXYGEN ; PLATINUM ; BATIO3 ; STATE
英文摘要The development of potential photocatalysts that can harvest visible light and drive the two half reactions of water splitting is of vital importance in solar energy utilization. Here we report a new deep nitrogen-doped complex perovskite metal oxide Ba(Mg1/3Ta2/3)O3-xNy (denoted as BMTON) that shows a wide visible light response with an absorption edge of ca. 560 nm rather than a shoulder absorption. Various characterizations indicate that the greatly extended light absorption is mainly ascribed to the efficient nitrogen doping into the oxide precursor Ba(Mg1/3Ta2/3)O-3 (denoted as BMTO) that can be simply understood as lattice Mg partly substituted BaTaOx. Meanwhile, theoretical results demonstrate that the weakened Ta-O bonds of the oxide precursor by the substitution of Mg atoms with lower electronegativity than Ta atoms are responsible for the enhanced nitrogen permeation. After loading of cocatalysts Pt or CoOx, BMTON is active for H-2 and O-2 evolution under visible light irradiation in the presence of CH3OH and AgNO3, respectively. This work may open a new avenue to prepare nitrogendoped metal oxides with wide visible light utilization for potential solar energy conversion by choosing suitable precursor oxides for nitridation.
语种英语
WOS记录号WOS:000410597200063
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/150172
专题中国科学院大连化学物理研究所
作者单位1.Jilin Univ, Coll Chem, Key Lab Surface & Interface Chem Jilin Prov, Changchun 130012, Jilin, Peoples R China
2.Chinese Acad Sci, Dalian Natl Lab Clean Energy, Key Lab Catalysis, iChEM,Dalian Inst Chem Phys, Dalian 116023, Peoples R China
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Cui, Junyan,Liu, Taifeng,Qi, Yu,et al. A wide visible light driven complex perovskite Ba(Mg1/3Ta2/3)O3-xNy photocatalyst for water oxidation and reduction[J]. JOURNAL OF MATERIALS CHEMISTRY A,2017,5(35):18870-18877.
APA Cui, Junyan.,Liu, Taifeng.,Qi, Yu.,Zhao, Dan.,Jia, Mingjun.,...&Li, Can.(2017).A wide visible light driven complex perovskite Ba(Mg1/3Ta2/3)O3-xNy photocatalyst for water oxidation and reduction.JOURNAL OF MATERIALS CHEMISTRY A,5(35),18870-18877.
MLA Cui, Junyan,et al."A wide visible light driven complex perovskite Ba(Mg1/3Ta2/3)O3-xNy photocatalyst for water oxidation and reduction".JOURNAL OF MATERIALS CHEMISTRY A 5.35(2017):18870-18877.
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