Abstract
The present work states the removal of organic compound using CuS photocatalyst under visible light irradiation. The CuS photocatalysts were synthesized by hydrothermal method by using copper nitrate as copper precursor and thiourea, sodium thiosulphate as sulfur precursors via hydrothermal route. The reaction was carried out at 150°C for 24h using water as a solvent. The prepared CuS nanostructures were analyzed by X-ray diffraction, FE-SEM, photoluminescence (PL), UV–vis spectroscopy and Fourier transform infrared spectroscopy (FT-IR). A detailed mechanism on the effect of sulfur source on CuS morphology has been elucidated. The catalytic process efficiency mainly depends upon the adsorption and electron transfer between the dye molecules. The successive decrement in the absorbance at 400nm shows the effective decrease in 4-nitrophenol pollutant as monitored by UV–vis spectrophotometer. The as prepared CuS catalyst showed highly efficient and versatile photocatalytic activities as well as excellent recyclability in degrading organic contaminant viz. nitrobenzene and 4-nitrophenol under visible light irradiation.
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