Modification of Lead Adsorbent from Activated Carbon of Cassava Peel Waste (Manihot esculenta) using Sodium Alginate

  • Aliyah Zahra Fauziyyah Chemical Analyst, Faculty of Vocational School, IPB University, Vocational School, IPB University, Jl. Raya Pajajaran No.15, Babakan, Bogor 16128, Indonesia.
  • Mohamad Alief Ramdhan Chemical Analyst, Faculty of Vocational School, IPB University, Vocational School, IPB University, Jl. Raya Pajajaran No.15, Babakan, Bogor 16128, Indonesia.
DOI: https://doi.org/10.30598/ijcr.2026.14-ali
Keywords: adsorbent, cassava peel, lead metal, sodium alginate

Abstract

The study aimed to address lead (Pb) contamination in aquatic environments by utilizing an adsorbent derived from cassava peel waste. The adsorbent was prepared by carbonizing cassava peel at 350 °C, followed by chemical activation using NaOH. To enhance its adsorption performance, the activated carbon was modified with sodium alginate. The adsorption process was evaluated to determine optimum conditions, including variations in adsorbent mass, solution pH, and contact time. Experimental results showed that the optimum conditions for Pb removal were achieved at pH 6, with 0.1 g of adsorbent and a contact time of 30 minutes. Under these conditions, the adsorbent exhibited an efficiency of 99.33% and an adsorption capacity of 1.9827 mg/g. The process followed the Langmuir isotherm model, and regeneration studies showed low recovery percentages ranging from 0.2% to 0.6%. These results indicate that cassava peel waste modified with sodium alginate is a promising, low-cost material for the removal of Pb from contaminated water systems.

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Published
2026-09-16
How to Cite
(1)
Fauziyyah, A.; Alief Ramdhan, M. Modification of Lead Adsorbent from Activated Carbon of Cassava Peel Waste (Manihot Esculenta) Using Sodium Alginate. Indo. J. Chem. Res. 2026, 14, 105-115.
Issue
Vol 14 No 2 (2026): Edition for September 2026
Section
Research articles

Copyright (c) 2026 Aliyah Zahra Fauziyyah, Mohamad Alief Ramdhan

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