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Photocatalytic hydrogen production under visible light over Cd0.1SnxZn0.9-2xS solid solution photocatalysts

Kimi, Melody and Yuliati, Leny and Shamsuddin, Mustaffa (2011) Photocatalytic hydrogen production under visible light over Cd0.1SnxZn0.9-2xS solid solution photocatalysts. International Journal of Hydrogen Energy, 36 (16). pp. 9453-9461. ISSN 0360-3199

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Official URL: http://dx.doi.org/10.1016/j.ijhydene.2011.05.044

Abstract

A series of Cd0.1SnxZn0.9-2xS solid solution was successfully synthesized by hydrothermal method and employed as photocatalyst for photocatalytic hydrogen evolution under visible light irradiation. The structures, optical properties and morphologies of the solid solutions were studied by X-ray diffraction, diffuse reflectance UV–visible spectroscopy and field emission scanning electron microscopy. From the characterizations, it was confirmed that Sn can form solid solution with Cd0.1Zn0.9S and the high crystallinity can be maintained as well. Among all samples, the highest photocatalytic activity was observed on Cd0.1Sn0.01Zn0.88S photocatalyst, with average rate of hydrogen production 3.52 mmol/h, which was ca. 1.5 times higher than the Cd0.1Zn0.9S photocatalyst. In addition to the high activity, the Cd0.1Sn0.01Zn0.88S also showed high stability at long irradiation time. The role of Sn in preventing electron-hole recombination and photocorrosion was proposed.

Item Type:Article
Uncontrolled Keywords:Cd0.1SnxZn 0.9-2xS, hydrogen, photocatalyst, solid solution, visible light
Subjects:Q Science > Q Science (General)
Divisions:Science
ID Code:29628
Deposited By: Yanti Mohd Shah
Deposited On:19 Mar 2013 08:04
Last Modified:25 Apr 2019 01:18

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