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- W4283835144 endingPage "113277" @default.
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- W4283835144 abstract "In recent days, the existence of several food colorants has an impact on human health issue that may induce major carcinogenic effects. Therefore, the removal of food colorants must be made in accordance with the necessity of health awareness in life. Photocatalyst treatment using semiconductors shows a promising way to solve these issues. In this relation, this paper presents the novel nanoflower shaped NiO/CuO (0.9:0.1 M and 0.5:0.5 M) photocatalysts developed via co-precipitation method for the destruction of methyl orange (MO) as a model food colorant under visible light irradiation. The X-ray diffraction result proposed that the composite catalysts consist of mixed heterostructures (cubic and monoclinic) with no other impurities. From the images of transmission electron microscope, the catalyst presents nano spherical and cubical mixed morphologies. Besides, NiO/CuO (0.5:0.5 M) catalyst exhibits agglomeration due to the highly contented CuO. The Energy Dispersive X-ray spectra gave the elemental configuration without other impurity traces. The Brunauer-Emmett-Teller surface area of NiO/CuO (0.9:0.1 M) catalyst occupies higher surface area. Unfortunately, NiO/CuO (0.5:0.5 M) sample has lower surface area due to the agglomerated particles. The UV–vis spectra confirmed that the absorption of the catalyst lies in higher wavelength region occupying small band gap. Moreover, the visible light activity of the catalysts showed 75.3% (0.9:0.1 M) and 40.2% (0.5:0.5 M) degrading efficiencies. At the end, the highly efficient catalyst was experienced photocatalytic activity upto 5 repeated runs and the efficiency remained the same. Therefore, the catalyst NiO/CuO (0.9:0.1 M) has prompted the successful degradation of MO food colorant under visible light." @default.
- W4283835144 created "2022-07-07" @default.
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- W4283835144 date "2022-09-01" @default.
- W4283835144 modified "2023-10-13" @default.
- W4283835144 title "Photocatalytic removal of food colorant using NiO/CuO heterojunction nanomaterials" @default.
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- W4283835144 doi "https://doi.org/10.1016/j.fct.2022.113277" @default.
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