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Oxygen vacancies promoted interfacial charge carrier transfer of CdS/ZnO heterostructure for photocatalytic hydrogen generation
Xie, Ying Peng; Yang, Yongqiang; Wang, Guosheng; Liu, Gang; Xie, YP (reprint author), Shenyang Univ Chem Technol, Coll Chem Engn, Key Lab Inorgan Mol Based Chem Liaoning Prov, 11 St Econ & Technol Dev Zone, Shenyang 110142, Peoples R China.; Liu, G (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua RD, Shenyang 110016, Peoples R China.
2017-10-01
发表期刊JOURNAL OF COLLOID AND INTERFACE SCIENCE
ISSN0021-9797
卷号503页码:198-204
摘要The solid-state Z-scheme trinary/binary heterostructures show the advantage of utilizing the high-energy photogenerated charge carriers in photocatalysis. However, the key factors controlling such Z-scheme in the binary heterostructures are still unclear. In this paper, we showed that oxygen vacancies could act as an interface electron transfer mediator to promote the direct Z-scheme charge transfer process in binary semiconductor heterostructures of CdS/ZnS. Increasing the concentration of surface oxygen vacancies of ZnO crystal can greatly enhance photocatalytic hydrogen generation of CdS/ZnO heterostructure. This was attributed to the strengthened direct Z-scheme charge transfer process in CdS/ZnO, as evidenced by steady-state/time-resolved photoluminescence spectroscopy and selective photodeposition of metal particles on the heterostructure. (C) 2017 Elsevier Inc. All rights reserved.; The solid-state Z-scheme trinary/binary heterostructures show the advantage of utilizing the high-energy photogenerated charge carriers in photocatalysis. However, the key factors controlling such Z-scheme in the binary heterostructures are still unclear. In this paper, we showed that oxygen vacancies could act as an interface electron transfer mediator to promote the direct Z-scheme charge transfer process in binary semiconductor heterostructures of CdS/ZnS. Increasing the concentration of surface oxygen vacancies of ZnO crystal can greatly enhance photocatalytic hydrogen generation of CdS/ZnO heterostructure. This was attributed to the strengthened direct Z-scheme charge transfer process in CdS/ZnO, as evidenced by steady-state/time-resolved photoluminescence spectroscopy and selective photodeposition of metal particles on the heterostructure. (C) 2017 Elsevier Inc. All rights reserved.
部门归属[xie, ying peng ; wang, guosheng] shenyang univ chem technol, coll chem engn, key lab inorgan mol based chem liaoning prov, 11 st econ & technol dev zone, shenyang 110142, peoples r china ; [yang, yongqiang ; liu, gang] chinese acad sci, shenyang natl lab mat sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china ; [liu, gang] univ sci & technol china, sch mat sci & engn, 96 jinzhai rd, hefei 230026, peoples r china
关键词Direct Z-scheme Oxygen Vacancies Interface Electron Transfer Cds/zno Hydrogen
学科领域Chemistry, Physical
资助者National Natural Science Foundation of China [51402199, 51422210]; Education Department of Liaoning Province [LZ2015060]
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/78007
专题中国科学院金属研究所
通讯作者Xie, YP (reprint author), Shenyang Univ Chem Technol, Coll Chem Engn, Key Lab Inorgan Mol Based Chem Liaoning Prov, 11 St Econ & Technol Dev Zone, Shenyang 110142, Peoples R China.; Liu, G (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua RD, Shenyang 110016, Peoples R China.
推荐引用方式
GB/T 7714
Xie, Ying Peng,Yang, Yongqiang,Wang, Guosheng,et al. Oxygen vacancies promoted interfacial charge carrier transfer of CdS/ZnO heterostructure for photocatalytic hydrogen generation[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2017,503:198-204.
APA Xie, Ying Peng,Yang, Yongqiang,Wang, Guosheng,Liu, Gang,Xie, YP ,&Liu, G .(2017).Oxygen vacancies promoted interfacial charge carrier transfer of CdS/ZnO heterostructure for photocatalytic hydrogen generation.JOURNAL OF COLLOID AND INTERFACE SCIENCE,503,198-204.
MLA Xie, Ying Peng,et al."Oxygen vacancies promoted interfacial charge carrier transfer of CdS/ZnO heterostructure for photocatalytic hydrogen generation".JOURNAL OF COLLOID AND INTERFACE SCIENCE 503(2017):198-204.
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