Visible-Light Overall Water Splitting by CdS/WO3/CdWO4 Tricomposite Photocatalyst Suppressing Photocorrosion

被引：51

作者：

Nagakawa, Haruki ^{[1
,2
]}

Ochiai, Tsuyoshi ^{[2
,3
,4
]}

Konuma, Seiji ^{[5
]}

Nagata, Morio ^{[1
]}

机构：

[1] Tokyo Univ Sci, Grad Sch Engn, Dept Ind Chem, Shinjuku Ku, 12-1 Ichigayafunagawara Cho, Tokyo 1620826, Japan

[2] Kanagawa Inst Ind Sci & TEChnol KISTEC, Photocatalyst Grp, Res & Dev Dept, Local Independent Adm Agcy, Ebina, Kanagawa 2130012, Japan

[3] KISTEC, Kawasaki Tech Support Dept, Mat Anal Grp, Ebina, Kanagawa 2130012, Japan

[4] Tokyo Univ Sci, Photocatalysis Int Res Ctr, Chiba 2788510, Japan

[5] KISTEC, Kawasaki Tech Support Dept, Nanostruct Anal Grp, Ebina, Kanagawa 2130012, Japan

来源：

ACS APPLIED ENERGY MATERIALS | 2018年 / 1卷 / 12期

关键词：

water splitting; photocorrosion; Z-scheme; cadmium sulfide; tungsten oxide; cadmium tungstate; REDUCED GRAPHENE OXIDE; HYDROGEN EVOLUTION; CADMIUM-SULFIDE; REDOX MEDIATOR; EFFICIENT; H-2; INHIBITION; OXYGEN;

D O I：

10.1021/acsaem.8b01600

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Photocatalytic water splitting under visible light has attracted attention as a possible solution to the energy exhaustion problem. Hitherto, water splitting has been generally achieved using several oxynitrides, oxysulfides, and nitrides, and only a few studies report water splitting using cadmium sulfide (CdS) as a photocatalyst. A major reason for this is that CdS undergoes photocorrosion. In this study, we achieved an overall water splitting under visible light using a CdS/WO3/CdWO4 tricomposite photocatalyst. In the process, photocorrosion of CdS was suppressed by covering it with WO3 and CdWO4, and the oxidation reaction progressed in WO3 by the Z-scheme type photocatalytic reaction.

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页码：6730 / +

页数：11

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