Abstract
Nowadays, increasing population and advanced industrialization have extended the use of synthetic dyes in day-to-day life which further results in dye pollution. Large numbers of photocatalysts are being used in industry to reduce pollution. In the present study, the Erbium doped silica nanocomposites were synthesised by sol gel method and used for photocatalytic applications. The characterization of catalysts was carried out by Powder X-ray diffraction analysis (XRD), Flame Emission scanning electron microscopy (FESEM), Energy-dispersed X-ray analysis (EDX), High Resolution transmission electron microscopy (HR-TEM), Ultra Violet Spectroscopy (UV) and Fourier Transform Infra-Red Spectroscopy (FTIR). The photocatalytic response of nanocomposites was evaluated for different synthetic dyes. Acidic dyes like methyl orange, methyl red, congo red and basic dyes such as methylene blue, rhodamine B and crystal violet were studied in aqueous solution under visible light irradiation. The composite showed enhanced photocatalytic activity for these synthetic dyes.
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