Please use this identifier to cite or link to this item:
https://hdl.handle.net/10356/144357
Title: | A photoresponsive rutile TiO2 heterojunction with enhanced electron-hole separation for high-performance hydrogen evolution | Authors: | Gao, Chaomin Wei, Tao Zhang, Yanyan Song, Xiaohan Huan, Yu Liu, Hong Zhao, Mingwen Yu, Jinghua Chen, Xiaodong |
Keywords: | Engineering::Materials | Issue Date: | 2019 | Source: | Gao, C., Wei, T., Zhang, Y., Song, X., Huan, Y., Liu, H., . . . Chen, X. (2019). A Photoresponsive Rutile TiO2 Heterojunction with Enhanced Electron-Hole Separation for High-Performance Hydrogen Evolution. Advanced Materials, 31(8), 1806596-. doi:10.1002/adma.201806596 | Journal: | Advanced materials | Abstract: | Rutile titanium dioxide (TiO2 ) is a promising photocatalyst due to its high thermodynamic stability and few intragrain defects. However, it has not yet achieved photocatalytic activity comparable to that of anatase TiO2 owing to its higher recombination rate of electron-hole pairs. To effectively separate the electron-hole pairs in rutile TiO2 , a facet heterojunction (FH) structure to prolong the lifetime of the photogenerated electrons is proposed. Ultrathin TiO2 nanosheets with different facets are coated in situ onto TiO2 nanorod (NR) substrates, where FHs are built among the nanosheets as well as between the nanosheets and NR substrates. The as-prepared rutile TiO2 , with an FH structure (FH-TiO2 ), serves as an effective photocatalyst for water splitting. More than 45 and 18 times higher photogenerated current density and H2 production rate, respectively, are obtained compared to those of pure rutile TiO2 NRs. Moreover, FH-TiO2 delivers a 0.566 mmol g-1 h-1 H2 production rate even in pure water. This study offers important insights into the rational design of rutile TiO2 structures for highly efficient photocatalytic reactions. | URI: | https://hdl.handle.net/10356/144357 | ISSN: | 0935-9648 | DOI: | 10.1002/adma.201806596 | Schools: | School of Materials Science and Engineering | Rights: | This is the accepted version of the following article: Gao, C., Wei, T., Zhang, Y., Song, X., Huan, Y., Liu, H., . . . Chen, X. (2019). A Photoresponsive Rutile TiO2 Heterojunction with Enhanced Electron-Hole Separation for High-Performance Hydrogen Evolution. Advanced Materials, 31(8), 1806596-., which has been published in final form at doi:10.1002/adma.201806596. This article may be used for non-commercial purposes in accordance with the Wiley Self-Archiving Policy [https://authorservices.wiley.com/authorresources/Journal-Authors/licensing/self-archiving.html]. | Fulltext Permission: | open | Fulltext Availability: | With Fulltext |
Appears in Collections: | MSE Journal Articles |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
A Photoresponsive Rutile TiO2 Heterojunction with Enhanced Electron–Hole Separation for High-Performance Hydrogen Evolution.pdf | 13.47 MB | Adobe PDF | View/Open |
SCOPUSTM
Citations
1
249
Updated on Mar 25, 2024
Web of ScienceTM
Citations
1
223
Updated on Oct 25, 2023
Page view(s)
393
Updated on Mar 27, 2024
Download(s) 10
429
Updated on Mar 27, 2024
Google ScholarTM
Check
Altmetric
Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.