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Vol. 32 No. 3 (2020): Vol 32 Issue 3

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Co-Doped SnO2 Supported on Activated Carbon: An Efficient Solar Photocatalyst for the Degradation of Rhodamine B

https://doi.org/10.14233/ajchem.2020.22406
S.R. Kande
Research Centre, Department of Chemistry, New Arts, Commerce and Science College, Ahmednagar-414001, India
B.H. Zaware
Research Centre, Department of Chemistry, New Arts, Commerce and Science College, Ahmednagar-414001, India
G.G. Muley
Department of Physics, Sant Gadge Baba Amravati University, Amravati-444602, India
A.B. Gambhire
Department of Chemistry, Shri Anand College, Pathardi-414102, India

Corresponding Author(s) : A.B. Gambhire

abg_chem@ymail.com

Asian Journal of Chemistry, Vol. 32 No. 3 (2020): Vol 32 Issue 3

Abstract

A series of SnO2/activated carbon (AC) nanomaterials were prepared by co-doping V(III), Cr(III), Mn(II), Fe(III), Co(III), Ni(II), Cu(II), Zn(II) with nitrogen and sulphur, separately by co-precipitation method, combined with surfactant incorporation method. The as-prepared sample were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectra (XPS), Brunauer-Teller method (BET), diffuse reflectance spectroscopy (DRS), photoluminescence (PL) and Raman spectroscopy. The results showed that the phase composition, crystallite size, BET surface area and optical absorption of samples varied significantly with the nature dopants. The photocatalytic activities of these co-doped SnO2/AC catalysts were investigated by degradation rhodamine B in aqueous solution under solar-light illumination. The results showed an appreciable enhancement in the photoactivity of Fe/N/SnO2/AC as compared to other co-doped SnO2/AC because of smaller particle size, higher specific surface area, photogenerated carrier′s separation and solar light absorption. The degradation rate of rhodamine B dye reached 98 % in 30 min, which is about 10 times higher than that of pure SnO2.

Keywords

Activated carbon Co-dopant Rhodamine B Solar photocatalysis
Kande, S., Zaware, B., Muley, G., & Gambhire, A. (2020). Co-Doped SnO2 Supported on Activated Carbon: An Efficient Solar Photocatalyst for the Degradation of Rhodamine B. Asian Journal of Chemistry, 32(3), 519–527. https://doi.org/10.14233/ajchem.2020.22406
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