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Olayinka Oderinde,Imtiaz Hussain,Mengmeng Kang,Yuanfeng Wu,Kalulu Mulenga,Ismaeel Adebayo,Fang Yao,Guodong Fu 한국공업화학회 2019 Journal of Industrial and Engineering Chemistry Vol.80 No.-
In this study, we report the utilization of different water contents (0–40 vol.%) as cosolvent to ethaline,ChCl:EG (deep eutectic solvent) at the mole ratio of 1:2 to prepare binary oxide of tungsten oxide-molybdenum oxide nanocomposite in an ambient environment, followed by characterization using XRD,FTIR, SEM, TEM, TGA, XPS and UV–vis spectroscopy. The as-prepared composite composed of aggregatedparticles at low temperature of 60 C, in the crystallite sizes ranging from~48.40 to 71.97 nm, with watercosolvent acting as bad solvent. Further characterizations revealed that the atomic percentage ratios oftungsten and molybdenum components increase with decrease in carbon content as the water contentincreases, while the morphology changes from cubic to prismatic polyhedral-like structures at lowtemperature, in addition to retaining ~73% of its original weight above 700 C. The UV–vis analysisrevealed broad absorption at 239–374 nm with a threshold value of 527 nm and can attain maximumphotochromic response in less 60 s on exposure to UV–vis light irradiation.