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ISSN: 2161-0525

Journal of Environmental & Analytical Toxicology
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Research Article

Magnesium Doped Titania for Photocatalytic Degradation of Dyes in Visible Light

Balaram Kiran Avasarala1*, Siva Rao Tirukkovalluri2 and Sreedhar Bojja3
1Department of Chemistry, Jazan University, Jazan, Kingdom of Saudi Arabia
2Department of Inorganic and Analytical Chemistry, Andhra University, Visakhapatnam, India
3Inorganic and Physical Chemistry Division, Indian Institute of Chemical Technology, Hyderabad, India
*Corresponding Author : Balaram Kiran Avasarala
Department of Chemistry
Jazan University, Jazan
Kingdom of Saudi Arabia
Tel: 9868398132
E-mail: [email protected]
Received February 01, 2016; Accepted February 29, 2016; Published March 03, 2016
Citation: Avasarala BK, Tirukkovalluri ST, Bojja S (2016) Magnesium Doped Titania for Photocatalytic Degradation of Dyes in Visible Light. J Environ Anal Toxicol 6:358. doi:10.4172/2161-0525.1000358
Copyright: © 2016 Avasarala BK, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Magnesium doped titanium dioxide (Mg+2-TiO2) with varying magnesium weight percentages (0.25 - 1.0 wt.%) has been synthesized by sol-gel method and is characterized by XRD, UV-Visible, XPS, SEM and FT-IR methods. XRD data has shown anatase crystalline phase in Mg+2-TiO2 catalysts indicating that Mg+2 did not influence the crystal patterns of TiO2. Absorption shift due to the presence of Mg+2 ions in the TiO2 structure is significant. SEM image revealed that doped catalyst has smaller particle size and higher surface area than undoped TiO2. FT-IR spectral study along with XPS established the substitution of Mg+2 into TiO2 lattice. The photocatalytic efficiency of the synthesized catalysts was investigated by performing photocatalytic degradation of methyl orange dye (MO) under visible light irradiation and it has been found that the Mg+2-TiO2 catalysts possess better catalytic activity than undoped TiO2. The effect of dopant concentration, pH, catalyst, dosage and pollutant concentrations was studied for obtaining optimal degradation conditions.

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