Journal
OPTICAL MATERIALS
Volume 143, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.optmat.2023.114167
Keywords
ZnO:TiO2 ??????? nanospheres; Sol -gel; Photocatalysis; MB dye; Levofloxacin; Visible light
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Wastewater from textiles and pharmaceutical industries contains harmful pollutants that are harmful to aquatic life and human health. Photocatalytic degradation, using Ce doped ZnO: TiO2 nanocomposite powder samples, shows promising results in minimizing these problems. The synthesized samples were characterized and showed polycrystalline nature, nanosphere like morphology, and a bandgap varying from 3.36 eV to 2.62 eV.
Wastewater from the textiles and pharmaceutical industries contains harmful inorganic and organic pollutants, which is not only harmful for aquatic life but also mutagenic to human. To minimize these problems, photocatalytic degradation is the one of the most promising remediation method. In the present work Ce doped ZnO: TiO2 nanocomposite powder samples, taking concentration as 0, 0.5, 1, and 1.5 at% coded as CZT1, CZT2, CZT3 and CZT4, respectively were synthesized. As prepared powder samples were characterized by various techniques including XRD, FE-SEM, UV-Vis Spectrophotometer and Photoluminescence. The X-ray diffraction pattern examined, all samples contains polycrystalline nature and their crystallite size was, from 5.06 nm to 2.3 nm as the doping concentration of Ce was increased. Field-emission scanning electron microscopy (FE-SEM) demonstrates the surface morphology of powder samples and determined the nanosphere like morphology. The bandgap of the samples varying from 3.36 eV to 2.62 eV, whereas the photoluminescence spectra (PL) of the sample show the visible emission at 475 nm. The CZT nanocomposite powder samples were characterized for the photocatalytic degradation of the Levofloxacin and MB dye. The degradation efficiency of the samples for was obtained for MB and levofloxacin i.e. 98% and 97.5% respectively.
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