Application of Column Chromatography for the Separation of Lead (Pb²⁺) and Cadmium (Cd²⁺) Ions from their Mixture

Author(s)	K. Thirupataiah, K. Damodar Reddy, M. Mallesh
Country	India
Abstract	In this study, a low-cost carbonaceous bio-adsorbent was developed from the powdered fruits of Casuarina equisetifolia, an agricultural waste product. The material was chemically modified through treatment with analytical grade nitric acid and sulfuric acid to enhance its adsorption capabilities. Column chromatography experiments demonstrated that the treated bio-adsorbent exhibits significant sorption capacity for the effective separation and removal of lead (Pb²⁺) and cadmium (Cd²⁺) ions from their aqueous mixture. The research also explores the potential for recovery of these heavy metal ions and the regeneration of the adsorbent, highlighting its reusability and environmental relevance in wastewater treatment applications.
Keywords	Adsorption, Column Chromatography, Bio-adsorbent, Casuarina Equisetifolia, Lead (Pb²⁺), Cadmium (Cd²⁺), Nitrated Material, Sulphonated Material, Heavy Metal Removal
Published In	Conference / Special Issue (Volume 7 \| Issue 5) - One Day National Seminar on “Computational Science: The Intersection of Math, Physics, Chemistry and Computer Science” (SVGASCA-2025) (October 2025)
Published On	2025-10-08
DOI	https://doi.org/10.36948/ijfmr.SVGASCA-2025.1110
Short DOI	https://doi.org/g9543r

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