Preparation and Photocatalytic Performance of One-Dimensional CdS/TiO2

doi:10.3724/SP.J.1088.2011.10605

Abstract

Abstract: By using hydrogen titanate nanotubes as support and titanium sol composed of CdCl₂ and thiourea as modifying precursor, one-dimensional CdS/TiO₂ catalysts with different CdS contents were prepared after calcination. The prepared materials were characterized by X-ray diffraction, transmission electron microscopy, N₂ adsorption, UV-Vis diffuse reflectance spectroscopy, and X-ray photoelectron spectroscopy. Using methyl orange solution as wastewater, the photocatalytic activity of CdS/TiO₂ was investigated under UV light and simulated sunlight irradiation. The results indicate that the tubular structure of titanate nanotubes is damaged and one-dimensional TiO₂ crystals form after the calcination process at high temperature. After TiO₂ is modified by CdS, improved photocatalytic performance is obtained, and 3% CdS/TiO₂ calcined at 400 ºC exhibits the best catalytic performance.

Key words: hydrogen titanate nanotube, support, cadmium sulfide, titanium dioxide, photocatalytic activity

ZHU Bao-Lin, ZHAO Wei-Ling, ZENG Chen-Jie, CHEN Jie, HAN Qi-Wei, HUANG Wei-Ping. Preparation and Photocatalytic Performance of One-Dimensional CdS/TiO₂[J]. Chinese Journal of Catalysis, 2011, 32(10): 1651-1655.

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URL: https://www.cjcatal.com/EN/10.3724/SP.J.1088.2011.10605

https://www.cjcatal.com/EN/Y2011/V32/I10/1651

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Preparation and Photocatalytic Performance of One-Dimensional CdS/TiO₂

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