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Vol. 25 No. 13 (2013): Vol 25 Issue 13

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Photophysical and Photochemical Properties of Nanosized Cobalt-Doped TiO2 Photocatalyst

https://doi.org/10.14233/ajchem.2013.14458
Pallabi Goswami
Department of Chemistry, Gauhati University, Gauhati-781 014, India
Rajib Kumar Debnath
Department of Chemistry, Gauhati University, Gauhati-781 014, India
Jatindra Nath Ganguli
Department of Chemistry, Gauhati University, Gauhati-781 014, India

Corresponding Author(s) : Jatindra Nath Ganguli

jatin_ganguli_gu@yahoo.co.in

Asian Journal of Chemistry, Vol. 25 No. 13 (2013): Vol 25 Issue 13

Abstract

Cobalt-doped TiO2 nanoparticles were prepared by the sol-gel and hydrothermal synthesis methods by using a stable precursor potassium titanium oxalate as Ti source and Co(NO3)2·6H2O was used for doping titania. Physicochemical properties of the samples were characterized by XRD, FTIR, RAMAN spectroscopy, DRS, EPR, etc. EDX confirmed the presence of cobalt. DRS and TEM revealed that doping has taken place. The calcined materials contained cobalt in (II) state and were found to be room temperature ferromagnetic. The photocatalytic activity of the samples was evaluated by photodecomposition of the dye sunset yellow.

Keywords

Titania Photocatalysis Co-doped titania Sunset yellow dye
Goswami, P., Kumar Debnath, R., & Nath Ganguli, J. (2013). Photophysical and Photochemical Properties of Nanosized Cobalt-Doped TiO2 Photocatalyst. Asian Journal of Chemistry, 25(13), 7118–7124. https://doi.org/10.14233/ajchem.2013.14458
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