Skip to main content

Research Repository

Advanced Search

Improvement of photocatalytic hydrogen generation from CdSe/CdS/TiO2 nanotube-array coaxial heterogeneous structure

Wang, Huiyong; Zhu, Wen; Chong, Baohe; Qin, Ke

Authors

Huiyong Wang

Wen Zhu

Baohe Chong

Ke Qin



Abstract

The fabrication and characterization of CdSe/CdS/TiO2 nanotube-array coaxial heterogeneous structure that has potential applications in photocatalytic water splitting and toxic pollutants degradation are investigated. CdSe(top)/CdS(under) double-layer is conformally deposited onto TiO2 nanotubes by successive ionic layer adsorption and reaction (SILAR) and electrochemical atomic layer deposition (ECALD), respectively, for the CdS under layer and the CdSe top layer. Such double sensitized TiO2 nanotubular photoelectrode exhibits significant enhancements in photoconversion efficiency, visible light response, and efficient hydrogen generation. The detailed synthesis process and the surface morphology, phase structure, elemental analysis, and photoelectrochemical properties of the resulting films with the CdSe/CdS/TiO2 nanotube-array coaxial heterogeneous structure are discussed. The photoconversion efficiency of 9.47% and hydrogen generation rate of 10.24 ml h?1 cm?2 were observed. Both values are a 7-fold enhancement compared with that of the pure TiO2 nanotube. The as-prepared photoelectrode presents potential application for industrialized photocatalytic hydrogen generation in the future.

Citation

Wang, H., Zhu, W., Chong, B., & Qin, K. (2014). Improvement of photocatalytic hydrogen generation from CdSe/CdS/TiO2 nanotube-array coaxial heterogeneous structure. International Journal of Hydrogen Energy, 39(1), 90-99. https://doi.org/10.1016/j.ijhydene.2013.10.048

Journal Article Type Article
Acceptance Date Oct 9, 2013
Online Publication Date Nov 8, 2013
Publication Date 2014-01
Deposit Date Aug 22, 2019
Journal International Journal of Hydrogen Energy
Print ISSN 0360-3199
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 39
Issue 1
Pages 90-99
DOI https://doi.org/10.1016/j.ijhydene.2013.10.048
Public URL https://nottingham-repository.worktribe.com/output/2472051
Additional Information This article is maintained by: Elsevier; Article Title: Improvement of photocatalytic hydrogen generation from CdSe/CdS/TiO2 nanotube-array coaxial heterogeneous structure; Journal Title: International Journal of Hydrogen Energy; CrossRef DOI link to publisher maintained version: https://doi.org/10.1016/j.ijhydene.2013.10.048; Content Type: article; Copyright: Copyright © 2013 Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

Downloadable Citations