3C-SiC nanocrystals/TiO2 nanotube heterostructures with enhanced photocatalytic performance
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Article number | 231902 |
Journal / Publication | Applied Physics Letters |
Volume | 104 |
Issue number | 23 |
Publication status | Published - 9 Jun 2014 |
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DOI | DOI |
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Attachment(s) | Documents
Publisher's Copyright Statement
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Link to Scopus | https://www.scopus.com/record/display.uri?eid=2-s2.0-84902438746&origin=recordpage |
Permanent Link | https://scholars.cityu.edu.hk/en/publications/publication(650f2a4b-972b-4356-8b46-d4f18c3e0c94).html |
Abstract
p-type ultrathin 3C-SiC nanocrystals are coated on heat-treated n-type TiO2 nanotube arrays formed by electrochemical etching of Ti sheets to produce heterostructured photocatalysts. Depending on the amounts of 3C-SiC nanocrystals on the TiO2 nanotubes, photocatalytic degradation of organic species can be enhanced. The intrinsic electric field induced by the heterojunction promotes separation of the photoexcited electrons-holes in both the TiO2 nanotubes and 3C-SiC nanocrystals. Hence, holes can more effectively travel to the surface of 3C-SiC nanocrystals and there are more electrons on the surface of TiO2 nanotubes consequently forming more •O2
- and •OH species to degrade organic molecules. © 2014 AIP Publishing LLC.
Research Area(s)
Citation Format(s)
3C-SiC nanocrystals/TiO2 nanotube heterostructures with enhanced photocatalytic performance. / Zhang, J.; Liu, L. Z.; Yang, L. et al.
In: Applied Physics Letters, Vol. 104, No. 23, 231902, 09.06.2014.
In: Applied Physics Letters, Vol. 104, No. 23, 231902, 09.06.2014.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
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