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Hydrogen evolution by photocatalytic decomposition of water under ultraviolet-visible irradiation over K(2)La(2)Ti(3-x)M(x)O(10+delta) perovskite
Wang, Bo1; Li, Chunshan1,2; Hirabayashi, Daisuke1; Suzuki, Kenzi1; Li, CS
2010-04-01
Source PublicationINTERNATIONAL JOURNAL OF HYDROGEN ENERGY
ISSN0360-3199
Volume35Issue:8Pages:3306-3312
AbstractNew layered transition metal substituted perovskite-type oxides K(2)La(2)Ti(3-x)M(x)O(10+delta) (M = Fe, Ni, W; delta varies with different M) were synthesized with high-temperature solid state reaction, and characterized with X-ray diffraction (XRD) and ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS). The photocatalytic activity of these catalysts was studied under ultraviolet and visible light irradiation. The results indicated that substitution of a part of Ti(4+) with Fe(3+) and W(6+) resulted in a marked increase in water splitting activity. The activity of these catalysts for water splitting decreased in the order: Fe(3+) > W(6+) > Ni(2+) >= no substitution. The effect of different amounts of Ti(4+) with Fe(3+) substitution on water splitting was also evaluated. The highest hydrogen evolution was observed for perovskite composition having a Fe:Ti molar ratio of 1:14 (1:12 weight ratio) and this hydrogen evolution was over 4 times higher than the Fe-free K(2)La(2)Ti(3)O(10) composition. Fe was also found to be a promising component for photo activity under visible light irradiation. Finally, the effect of Na(2)S/Na(2)SO(3) system as the sacrificial agent on the photocatalytic activity was also studied. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.
Keywordk(2)La(2)Ti(3-x)m(x)o(10+delta) Water Splitting Photocatalyst h(2) Na(2)s/Na(2)So(3) System
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1016/j.ijhydene.2010.01.022
Indexed BySCI
Language英语
WOS KeywordLAYERED PEROVSKITE ; SULFIDE SUSPENSIONS ; UV-IRRADIATION ; LIGHT ; TIO2 ; ENHANCEMENT ; K2LA2TI3O10 ; SRTIO3 ; SERIES
WOS Research AreaChemistry ; Electrochemistry ; Energy & Fuels
WOS SubjectChemistry, Physical ; Electrochemistry ; Energy & Fuels
WOS IDWOS:000277463600016
Citation statistics
Cited Times:30[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/6173
Collection多相复杂系统国家重点实验室
Corresponding AuthorLi, CS
Affiliation1.Nagoya Univ, EcoTopia Sci Inst, Nagoya, Aichi 4648603, Japan
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Wang, Bo,Li, Chunshan,Hirabayashi, Daisuke,et al. Hydrogen evolution by photocatalytic decomposition of water under ultraviolet-visible irradiation over K(2)La(2)Ti(3-x)M(x)O(10+delta) perovskite[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2010,35(8):3306-3312.
APA Wang, Bo,Li, Chunshan,Hirabayashi, Daisuke,Suzuki, Kenzi,&Li, CS.(2010).Hydrogen evolution by photocatalytic decomposition of water under ultraviolet-visible irradiation over K(2)La(2)Ti(3-x)M(x)O(10+delta) perovskite.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,35(8),3306-3312.
MLA Wang, Bo,et al."Hydrogen evolution by photocatalytic decomposition of water under ultraviolet-visible irradiation over K(2)La(2)Ti(3-x)M(x)O(10+delta) perovskite".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 35.8(2010):3306-3312.
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