| Selectively constructing sandwich-like heterostructure of CdS/PbTiO3/TiO2 to improve visible-light photocatalytic H-2 evolution | |
| Wan, Gedeng1,2; Yang, Yongqiang1; Zhu, Huaze1,2; Zhen, Chao1; Xu, Xiaoxiang3; Wang, Lianzhou4,5; Liu, Gang1,2 | |
| Corresponding Author | Liu, Gang(gangliu@imr.ac.cn) |
| 2022-06-24 | |
| Source Publication | SCIENCE CHINA-MATERIALS
 |
| ISSN | 2095-8226 |
| Pages | 7 |
| Abstract | 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. |
| Keyword | photocatalysis ferroelectric PbTiO3 water splitting heterostructure |
| Funding Organization | National Key R&D Program of China ; National Natural Science Foundation of China |
| DOI | 10.1007/s40843-022-2067-5 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Materials Science |
| WOS Subject | Materials Science, Multidisciplinary |
| WOS ID | WOS:000820944300002 |
| Publisher | SCIENCE PRESS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/174850 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Liu, Gang |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Tongji Univ, Sch Chem Sci & Engn, Shanghai 200060, Peoples R China 4.Univ Queensland, Nanomat Ctr, Sch Chem Engn, St Lucia, Qld 4072, Australia 5.Univ Queensland, Australian Inst Bioengn & Nanotechnol, St Lucia, Qld 4072, Australia |
| Recommended Citation 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. |
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