Photocatalytic detoxification of lemon yellow food additive by Novel AC@ZnO/CuO/WO3 quaternary composites via Citrus sinensis and solid-state-reaction method
The quantities of food colorants in food and environment should be limited to a safer range, and hence, cost-effective and environmental friendly technologies for their detoxification are urgently required for environmental protection and food safety. In this study, ZnO, CuO and WO3 were synthesized by simple coprecipitation method. The novel ternary composites ZnO/CuO/WO3 and AC@ZnO/CuO/WO3 quaternary composites were synthesized by green synthesis method using Citrus sinensis extract and solid-state-reaction method respectively. The synthesized products were characterized by scanning electron microscopy, X-ray diffraction, photoluminescence, UV–visible spectroscopy and energy dispersive x-ray spectroscopies to evaluate their characteristic properties. The findings illustrated the best characteristics of AC@ZnO/CuO/WO3 were superior to other nanomaterials under study. It provided a tuned bandgap of 1.89 eV with least rate of recombination of charges and an average crystallite size of ∼25 nm. BET analysis provided the validity of enhancement in specific surface area by making ternary composite (28.21 m2/g) and it was much increased due to inclusion of activated carbon (83.27 m2/g). Pure ZnO showed 37.96 % and optimized AC@ZnO/CuO/WO3 have shown 98.6 % LY detoxification in 60 min. Theoretical calculations and simulations validated the experimental findings about LY detoxification using synthesized photocatalysts. The findings proved the potential photocatalytic detoxification application of synthesized ternary and quaternary composites.
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In recent years, the detection of tyrosine has gained substantial attention because of its potential use as a biomarker for various diseases. The metabolomic methods used for this purpose are time…
The quantities of food colorants in food and environment should be limited to a safer range, and hence, cost-…