Abstract
Acid and Alkali pretreated Rice husk-Graphene Oxide nanomaterial was synthesized using Probe Sonicator and employed for the adsorptive removal of Chromium (Cr(VI) in water. The mechanism of adsorption was predicted by Modelling of experiment by Minitab software. The present work employed three linear adsorption isotherm models, namely, Langmuir, Freundlich and Temkin to correlate adsorption isotherm data obtained by batch tests. The results were compared and indicated that Langmuir model could best fit for the data with highest R2 and maximum adsorption capacity of 0.9987 and 943.3962 mg/g respectively and followed pseudo-second order kinetics.
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