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This report attempts to elucidate the potential of plant seed extract assisted synthesis of graphite‐based zinc oxide nanoparticles (C‐ZnO NPs) towards removal of chromium(VI) ions from water samples. The graphite‐based zinc oxide (C‐ZnO) composites were characterized using thermogravimetric analysis (TGA), X‐ray diffraction (XRD), Fourier‐transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM). The C‐ZnO nanocomposites have found to remove chromium from the sample through an adsorption process. The sensitivity of chromium removal through adsorption is found to be in the range of 40 to 240 mg. The adsorption behaviour was found to be fitting with Langmuir isotherm model and the adsorption reaction follows pseudo second‐order kinetics.

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