The adsorption capacity of robusta coffee peel-activated charcoal on the aqueous of lead and cadmium ions

The metal ion adsorption process is strongly influenced by the pH conditions and the amount of adsorbent used. The purpose of this study was to determine the optimum pH and weight of coffee peel-activated charcoal in the adsorption of lead (Pb) and cadmium (Cd) ions. Determination of the optimum pH...

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Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2024-06, Vol.1355 (1), p.12001
Main Authors: Ratman, Perodo, C A K, Poba, D, Napitupulu, M, Walanda, D K
Format: Article
Language:English
Subjects:
Activated carbon
Activated charcoal
Adsorption
Cadmium
Charcoal
Coffee
Ion adsorption
Lead
Metal ions
pH effects
Weight
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Summary:The metal ion adsorption process is strongly influenced by the pH conditions and the amount of adsorbent used. The purpose of this study was to determine the optimum pH and weight of coffee peel-activated charcoal in the adsorption of lead (Pb) and cadmium (Cd) ions. Determination of the optimum pH for adsorption of activated charcoal on coffee peels was carried out by varying the pH of 4, 5, 6, 7, and 8. In contrast, the weight of the activated charcoal was 50, 75, 100, 125, and 150 mg, respectively. The study results showed that the optimum pH for adsorption of activated charcoal on lead (Pb) and cadmium (Cd) ions was pH 4 and 8, namely 99.80% and 96.95%. Meanwhile, the optimum adsorption weight of activated charcoal for Lead (Pb) and Cadmium (Cd) ions is 75 mg and 150 mg, namely 99.95% and 99.45%.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/1355/1/012001