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Biosorption of nickel from aqueous solution onto Liagora viscida : Kinetics, isotherm, and thermodynamics
Author(s) -
Komarabathina Srikanth,
Pulipati King,
Pujari Murali,
Kodavaty Jagadeeshwar
Publication year - 2019
Publication title -
environmental progress and sustainable energy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.495
H-Index - 66
eISSN - 1944-7450
pISSN - 1944-7442
DOI - 10.1002/ep.13330
Subject(s) - biosorption , freundlich equation , sorption , langmuir , aqueous solution , endothermic process , chemistry , nickel , langmuir adsorption model , kinetics , nuclear chemistry , thermodynamics , adsorption , organic chemistry , physics , quantum mechanics
The present article addresses the effect of various parameters on batch biosorption of nickel using an inexpensive Liagora viscida algae as a biosorbent. The experimental studies revealed that for an initial metal solution concentration of 20–200 ppm, the equilibrium is achieved after 50 min and the maximum sorption at a pH of 5. Isotherms such as Temkin, Freundlich, and Langmuir were examined. The data are well suitable by using the Langmuir isotherm with a sorption uptake of 22.77 mg/g, confirming that L. viscida can be considered as a low‐cost biosorbent. The dynamic experimental data were represented well by pseudo‐first‐order kinetics. The thermodynamic study revealed that the biosorption of nickel on to L. viscida was endothermic and spontaneous.