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From Biomass to Adsorbent: A Comprehensive Review on Bio-Derived Carbons for Dye Removal
Buvaneswari Kuppusamy1, Fathima Rigana Mohamed Ismail1, Preethi Balakrishnan2
1Department of Chemistry, KCG College of Technology, Karapakkam, Chennai-97 600097, Tamilnadu, India.
Abstract:
The escalating release of synthetic dyes from textile and allied industries has become a pressing global environmental issue due to their toxicity, persistence, and resistance to biodegradation. Among the various treatment strategies, adsorption has emerged as one of the most efficient, economical, and sustainable techniques for dye removal from aqueous environments. This review highlights recent advances in bio-derived adsorbents-particularly raw biomass powders, biochars, and activated carbons-developed from renewable waste sources such as agricultural residues, fruit peels, shells, and plant fibers. It systematically discusses adsorption mechanisms, the influence of process parameters, kinetic and thermodynamic models, and regeneration performance. Furthermore, the review emphasizes the superior adsorption efficiency and cost-effectiveness of biomass-derived carbons compared to conventional adsorbents. The integration of surface modification, magnetization, and nanocomposite formation has further enhanced dye uptake and reusability. Overall, this study underscores the potential of biomass-derived materials as sustainable alternatives for wastewater treatment and environmental remediation.
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