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        Montmorillonite-Supported BiVO4 nanocomposite: Synthesis, interface characteristics and enhanced photocatalytic activity for Dye-contaminated wastewater

        Parveen Akhter,Iqrash Shafiq,Faisal Ali,Faiza Hassan,Roeya Rehman,Nasir Shezad,Ashfaq Ahmed,Farrukh Jamil,Murid Hussain,Young-Kwon Park 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.123 No.-

        Textile effluents may harm the human body as well as cause environmental pollution. For several decadesresearchers have been attempting to overcome this issue by introducing environmentally friendly technologiesthat degrade bulk dyes to mitigate hazards. Synthetic dyes are carcinogenic for humans as wellas for other living organisms. Various techniques have been developed for the removal of these toxiccompounds, advanced oxidation processes (AOPs) being the most used processes. In this study,Montmorillonite (MMT) supported BiVO4 nanocomposite was prepared by the sol–gel method to degradeBrilliant Red 80 dye using photocatalysis. The BiVO4/MMT composite was comprehensively characterizedby several characterization techniques including X-ray diffraction (XRD), Fourier-transform infraredspectroscopy (FTIR), Scanning electron microscopy (SEM), Raman, Photoluminescence spectroscopy(PL), and UV–Vis diffuse reflectance spectroscopy (UV–Vis-DRS). Interestingly, the composite materialshowed a narrow bandgap of 2.26 eV with strong light absorption in the visible range. A 1000-wattXenon Lamp was used for activity performance measurement. The photocatalytic Brilliant Red 80 degradationactivity was observed to be 99% degraded within 120 min of illumination compared to conventionalBiVO4 which showed around 80% degradation. Moreover, in this work, an acidic media wasfound to favor the degradation of Brilliant Red 80 dye.

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