Study on Non-Selective Photocatalytic Degradation of Organic Dyes in Presence of Hollow CdS Nanospheres

Han Wang; Jing Tang Zheng; Xing Zheng

doi:10.4028/www.scientific.net/AMM.700.302

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 700Study on Non-Selective Photocatalytic Degradation...

Study on Non-Selective Photocatalytic Degradation of Organic Dyes in Presence of Hollow CdS Nanospheres

Abstract:

In this study, template method was applied to synthesize CdS hollow nanospheres via sonochemical method. The morphology, size of the nanospheres and crystal structure of the synthesized hollow CdS were characterized. The results showed that the hollow CdS nanospheres formed have pure cubic sphalerite structure and exhibit good monodispersity and size uniformity. The photocatalytic activity of the samples was evaluated by the decoloration of Rhodamine B (RhB), Methylene Blue (MB) and Methyl Orange (MO) aqueous solution under UV-vis light irradiation. The results indicated the hollow CdS had a good photocatalytic activity and show little selectivity of attack and are able to oxidize various organic pollutants. Moreover, the results of hydroxyl radical (^•OH) detection using fluorescent probe method was in accordance with the RhB decolorization efficiency, which the ^•OH is likely to be the main active species responsible for dye degradation.

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Periodical:

Applied Mechanics and Materials (Volume 700)

Pages:

302-305

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.700.302

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Online since:

December 2014

Authors:

Han Wang, Jing Tang Zheng*, Xing Zheng

Keywords:

Hollow CdS Nanosphere, Hydroxyl Radical, Photocatalysis, Wastewater Remediation

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