Degradation of azo dyes under different wavelengths of UV light with chitosan-SnO2 nanocomposites
Author
dc.contributor.author
Gupta, Vinod Kumar
Author
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Saravanan, R.
Author
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Agarwal, Shilpi
Author
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Gracia Caroca, Francisco
Author
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Khan, Mohammad Mansoob
Author
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Qin, Jiaqian
Author
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Mangalaraja, R. V.
Admission date
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2019-05-29T13:10:43Z
Available date
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2019-05-29T13:10:43Z
Publication date
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2017
Cita de ítem
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Journal of Molecular Liquids 232 (2017) 423–430
Identifier
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01677322
Identifier
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10.1016/j.molliq.2017.02.095
Identifier
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https://repositorio.uchile.cl/handle/2250/168860
Abstract
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In this study, synthesis of novel binary chitosan-SnO2nanocomposites is reported. Different physical and chemical techniques were used to characterize and analyze the characteristics of the chitosan-SnO2nanocomposites as photocatalysts. The prepared novel photocatalysts were used to degrade the model dyes such as methyl orange (MO) and rhodamine B (RhB) under different wavelengths (254, 310 and 365 nm) of UV light. The photocatalytic degradation results suggest that the prepared binary chitosan-SnO2(50:50) nanocomposite shows superior degradation efficiency compared with pure SnO2and binary chitosan-SnO2(75:25) nanocomposite owing to its high crystallinity, high surface area, and small particle size. It was also observed that chitosan-SnO2(50:50) nanocomposite under different wavelengths (254 nm, 310 nm, and 365 nm) of UV light showed highest photocatalytic degradation of methyl orange and rhodamine B at 365 nm irradiation.