Selectively constructing sandwich-like heterostructure of CdS/PbTiO3/TiO2 to improve visible-light photocatalytic H-2 evolution

doi:10.1007/s40843-022-2067-5

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	Selectively constructing sandwich-like heterostructure of CdS/PbTiO3/TiO2 to improve visible-light photocatalytic H-2 evolution
	Wan, Gedeng 4,5; Yang, Yongqiang 5; Zhu, Huaze 4,5; Zhen, Chao 5; Xu, Xiaoxiang 3; Wang, Lianzhou 1,2; Liu, Gang 4,5
刊名	SCIENCE CHINA-MATERIALS
	2022-06-24
页码	7
关键词	photocatalysis ferroelectric PbTiO3 water splitting heterostructure
ISSN号	2095-8226
DOI	10.1007/s40843-022-2067-5
通讯作者	Liu, Gang(gangliu@imr.ac.cn)
英文摘要	Fast migration and efficient spatial separation of photogenerated charges in photocatalytic materials are indispensable to efficient solar water splitting reactions. Here, we construct a three-phase heterostructure of CdS/PbTiO3/TiO2 by selectively depositing CdS and TiO2 at oppositely poled crystal facets of PbTiO3 using single-domain ferroelectric PbTiO3. The heterostructure has matching band edge alignments and strong interfacial connections at different moieties. The heterostructure combines the interfacial electrical and ferroelectric fields because of their peculiar microstructures, which provide a strong driving force throughout the whole bulk to separate photogenerated charges. Almost two orders of magnitude improvement of visible-light-driven photocatalytic H-2 production has been realized in CdS/PbTiO3/TiO2 compared with bare PbTiO3/TiO2, showing the efficiency of charge separation in the heterostructure. The idea of combining ferroelectrics with potential light capture semiconductor provides a paradigm to accurately design charge migration pathways, bringing a step closer to efficient solar water splitting.
资助项目	National Key R&D Program of China[2021YFA1500800] ; National Natural Science Foundation of China[51825204] ; National Natural Science Foundation of China[52120105003] ; National Natural Science Foundation of China[52072379]
WOS研究方向	Materials Science
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000820944300002
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/174849]
专题	金属研究所_中国科学院金属研究所
通讯作者	Liu, Gang
作者单位	1.Univ Queensland, Australian Inst Bioengn & Nanotechnol, St Lucia, Qld 4072, Australia 2.Univ Queensland, Nanomat Ctr, Sch Chem Engn, St Lucia, Qld 4072, Australia 3.Tongji Univ, Sch Chem Sci & Engn, Shanghai 200060, Peoples R China 4.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 5.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Wan, Gedeng,Yang, Yongqiang,Zhu, Huaze,et al. Selectively constructing sandwich-like heterostructure of CdS/PbTiO3/TiO2 to improve visible-light photocatalytic H-2 evolution[J]. SCIENCE CHINA-MATERIALS,2022:7.
APA	Wan, Gedeng.,Yang, Yongqiang.,Zhu, Huaze.,Zhen, Chao.,Xu, Xiaoxiang.,...&Liu, Gang.(2022).Selectively constructing sandwich-like heterostructure of CdS/PbTiO3/TiO2 to improve visible-light photocatalytic H-2 evolution.SCIENCE CHINA-MATERIALS,7.
MLA	Wan, Gedeng,et al."Selectively constructing sandwich-like heterostructure of CdS/PbTiO3/TiO2 to improve visible-light photocatalytic H-2 evolution".SCIENCE CHINA-MATERIALS (2022):7.