Abstract
ABSTRACTNitrogen-enriched nanobiopolymer has been fabricated using (2,3-epoxypropyl) trimethylammonium chloride (EPTMAC) and explored for the removal of Cr(VI) from tannery effluent. The removal efficiency of nanobiopolymer was found to be 23.99 mg g−1 (95.94%) under optimized conditions. The sorption data agrees well with the Langmuir and pseudo-second-order model. Equilibrium parameter (RL) and sorption energy show the favorability and physical binding of Cr(VI) on the nanobiopolymer’s backbone. The values of ∆G° (−7.84 kJ mol−1), ∆S° (65.97 J mol−1K−1) and ∆H° (11.82 kJ mol−1) reflect the feasible nature of the sorption process. Reusability study was also conducted to state the performance of the nanobiopolymer.
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