Abstract
Fly ash modified copper oxide photocatalyst (FA/CuO) has been successfully synthesized via a green method using copper sulphate pentahydrate and F-type fly ash. The physico-chemical properties of prepared FA/CuO were examined by various techniques such as FEG-SEM, XRD, FT-IR and UV-visible spectroscopy. The photocatalytic activity of the synthesized FA/CuO has been evaluated by performing the degradation of methyl orange (MO) dye in aqueous solution under direct sunlight irradiation. The photocatalyst was associated with band gap energy of 2.09 eV. The ash provided a strong support of the copper oxides responsible for photocatalytic degradation. A rapid MO dye degradation (99.1%) occurred at 40 min over the surface of FA/CuO photocatalyst.
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