Fe2V4O13 assisted hetero-Fenton mineralization of methyl orange under UV-A light irradiation
Journal: Iranian Chemical Communication (Vol.6, No. 1)Publication Date: 2018-01-01
Authors : Kaliyamoorthy Gowthami; Palusamy Suppuraj; Ganesamoorthy Thirunarayanan; Balu Krishnakumar; Abílio José Fraga do Nascimento Sobral; Meenakshisundaram Swaminathan; Inbasekaran Muthuvel;
Page : 97-108
Keywords : Fe2V4O13; methyl orange; wastewater treatment; hetero-Fenton reaction; photocatalysis;
Abstract
Fe2V4O13 is prepared and characterized by X-ray diffraction (XRD), Fourier transform infrared (FT-IR), UV-diffuse reflectance spectroscopy (UV-DRS), high resolution scanning electron microscopy (HR-SEM) using energy dispersive X-ray spectroscopy (EDX) analysis. The hetero-Fenton catalyst can be used to mineralize Methyl Orange (MO) under UV-A light. The mineralization rate is influenced by hydrogen peroxide (H2O2) concentration, pH, and catalyst loading. The reusability of Fe2V4O13 is analyzed by five successive runs. At the maximum of 95% of degradation is observed in all five cycles. Therefore, the Fe2V4O13 catalyst is found to be reusable. The mineralization is confirmed by chemical oxygen demand (COD) measurements. Mechanism of the heterophoto-Fenton process is also proposed.Keywords: Fe2V4O13; Methyl Orange; wastewater treatment; hetero-Fenton reaction; photocatalysis
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