| Patterning alternate TiO2 and Cu2O strips on a conductive substrate as film photocatalyst for Z-scheme photocatalytic water splitting | |
| Zhu, Honglei1,2; Zhen, Chao1; Chen, Xiangtao1,3; Feng, Shun1; Li, Bo1,2; Du, Yufei1,2; Liu, Gang1,2; Cheng, Hui-Ming1,4 | |
| Corresponding Author | Zhen, Chao(czhen@imr.ac.cn) ; Liu, Gang(gangliu@imr.ac.cn) |
| 2022-12-15 | |
| Source Publication | SCIENCE BULLETIN
 |
| ISSN | 2095-9273 |
| Volume | 67Issue:23Pages:2420-2427 |
| Abstract | Semiconductor heterostructures mediated by electrical conductors are very promising for Z-scheme pho-tocatalytic water splitting. In contrast to conventional particulate heterostructures, alternate TiO2 and Cu2O film stripes patterned parallel on a fluorine-doped tin oxide (FTO) conductive substrate was fabri-cated as a model film photocatalyst to study the characteristics of the photogenerated charge transfer process. The Z-scheme transfer process with an effective transport distance of up to 5lm occurs only in regions distant from the TiO2/Cu2O strip edges through the FTO substrate from the bottom. In contrast, the transfer of charge around their contact regions follows the conventional transfer process through the TiO2/Cu2O strip interface. These results indicate that the Z-scheme transfer process occurring in such a large region dominates the charge transfer processes in the TiO2/FTO/Cu2O pattern film heterostructure. Importantly, unlike the single component film, which is inactive for photocatalytic overall water splitting, the modified TiO2/Cu2O pattern film can induce photocatalytic overall water splitting at a stoichiometric H2/O2 ratio close to 2:1. These findings have significant implications in designing efficient heterostruc-tures by employing a Z-scheme charge transfer process. (c) 2022 Science China Press. Published by Elsevier B.V. and Science China Press. All rights reserved. |
| Keyword | Photocatalyst Pattern film Heterostructure Z-scheme Water splitting |
| Funding Organization | National Key Research and Development Program of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; International Partnership Program of the Chinese Academy of Sciences ; Natural Science Foundation of Liaoning Province |
| DOI | 10.1016/j.scib.2022.11.018 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key Research and Development Program of China[2021YFA1500800] ; National Natural Science Foundation of China[51825204] ; National Natural Science Foundation of China[52072377] ; National Natural Science Foundation of China[52188101] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2020192] ; International Partnership Program of the Chinese Academy of Sciences[174321KYSB20200005] ; Natural Science Foundation of Liaoning Province[2021 -MS -014] |
| WOS Research Area | Science & Technology - Other Topics |
| WOS Subject | Multidisciplinary Sciences |
| WOS ID | WOS:000912381900001 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/175395 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Zhen, Chao; 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.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China 4.Chinese Acad Sci, Inst Technol Carbon Neutral, Shenzhen Inst Adv Technol, Shenzhen 518055, Peoples R China |
| Recommended Citation GB/T 7714 | Zhu, Honglei,Zhen, Chao,Chen, Xiangtao,et al. Patterning alternate TiO2 and Cu2O strips on a conductive substrate as film photocatalyst for Z-scheme photocatalytic water splitting[J]. SCIENCE BULLETIN,2022,67(23):2420-2427. |
| APA | Zhu, Honglei.,Zhen, Chao.,Chen, Xiangtao.,Feng, Shun.,Li, Bo.,...&Cheng, Hui-Ming.(2022).Patterning alternate TiO2 and Cu2O strips on a conductive substrate as film photocatalyst for Z-scheme photocatalytic water splitting.SCIENCE BULLETIN,67(23),2420-2427. |
| MLA | Zhu, Honglei,et al."Patterning alternate TiO2 and Cu2O strips on a conductive substrate as film photocatalyst for Z-scheme photocatalytic water splitting".SCIENCE BULLETIN 67.23(2022):2420-2427. |
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