Preparation of Cu-doped Cd0.1Zn0.9S solid solution by hydrothermal method and its enhanced activity for hydrogen production under visible light irradiation

Kimi, Melody and Leny, Yuliati and Mustaffa, Shamsuddin (2012) Preparation of Cu-doped Cd0.1Zn0.9S solid solution by hydrothermal method and its enhanced activity for hydrogen production under visible light irradiation. Journal of Photochemistry and Photobiology A: Chemistry, 230. pp. 15-22. ISSN 1010-6030/

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Official URL: http://www.elsevier.com/locate/jphotochem

Abstract

A series of Cu-doped Cd0.1Zn0.9S solid solution with various amounts of Cu dopant was successfully prepared by hydrothermal method. The properties and the photocatalytic activity of the prepared samples for hydrogen production under visible light irradiation were compared to those prepared by co-precipitation method. The Cu-doped Cd0.1Zn0.9S samples prepared by hydrothermal method showed both improved crystallinity and photoabsorption ability as compared to the undoped sample. On the other hand, even though Cu-doped Cd0.1Zn0.9S prepared by co-precipitation method also showed improved photoabsorption ability in the visible light region, the samples showed poor crystallinity compared to the undoped one. With the same amount of Cu dopant, all samples prepared by hydrothermal method were found to exhibit higher photocatalytic activity for hydrogen production than the samples prepared by co-precipitation method. It was revealed that the amount of Cu dopant, crystallinity and narrow band gap energy are important factors to obtain highly active and stable photocatalysts.

Item Type: Article
Uncontrolled Keywords: Cu-doped Cd0.1Zn0.9S, Hydrothermal, Co-precipitation, Visible light, Hydrogen production, unimas, university, universiti, Borneo, Malaysia, Sarawak, Kuching, Samarahan, ipta, education, research, Universiti Malaysia Sarawak, undergraduate, postgraduate
Subjects: Q Science > QD Chemistry
Divisions: Academic Faculties, Institutes and Centres > Centre for Pre-University Studies
Depositing User: Farah Liyana bt Azizan
Date Deposited: 14 Apr 2015 08:20
Last Modified: 10 Sep 2015 07:07
URI: http://ir.unimas.my/id/eprint/7015

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