The study demonstrates efficient removal of Congo Red and Cr(vi) in wastewater, highlighting its reusability.
A sustainable graphene–aminated lignin (MG–AL) composite achieves dual removal of Cr( vi ) and Congo Red from wastewater via synergistic amine functionalization, defect-rich graphene, high chemisorption, and excellent reusability.
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Billah et al. (2026) studied this question.
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