Evaluation of cassava peel waste as lowcost biosorbent for Ni-sorption: Equilibrium, kinetics, thermodynamics and mechanism

Kurniawan, Alfin and Kosasih, Aline Natasia and Febrianto, Jonathan and Yi-Hsu, Ju and Sunarso, Jaka and Indraswati, Nani and Ismadji, Suryadi (2011) Evaluation of cassava peel waste as lowcost biosorbent for Ni-sorption: Equilibrium, kinetics, thermodynamics and mechanism. Chemical Engineering Journal, 172 (1). pp. 158-166. ISSN 1385-8947

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Chemical Engineering Journal 172 (2011) 158– 166.pdf

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Official URL: http://www.sciencedirect.com/science/article/pii/S...

Abstract

The feasibility of cassava peel waste for Ni-sorption is evaluated in this work. The biosorbents are characterized by Boehm titration, Fourier transform-infra red (FTIR) spectroscopy, Nitrogen sorption, scanning electron microscopy-energy dispersive X-ray (SEM-EDX) analysis (e.g. elemental mapping) and X-ray photoelectron spectroscopy (XPS). Adsorption experiments are performed in batch mode at 30◦C (303.15K), 45◦C (318.15K)and 60◦C (333.15 K). The performance of several temperature dependence forms of isotherm models e.g. Langmuir, Freundlich, Sips and Toth to represent the adsorption equi-librium data is evaluated and contrasted. Sips model demonstrates the best fitting with the maximum uptake capacity for Ni(II) ions of 57 mg/g (0.971mmol/g) at pH 4.5. For kinetic data correlation, pseudo-second order model shows the best representation. The chemisorption mechanism and thermodynamics aspect are also discussed.

Item Type: Article
Uncontrolled Keywords: Cassava peel, isotherm, nickel, biosorption
Subjects: Engineering > Chemical Engineering
Divisions: Faculty of Engineering > Chemical Engineering Study Program
Depositing User: Suryadi. Ismadji
Date Deposited: 24 May 2017 03:29
Last Modified: 19 Jul 2018 06:20
URI: http://repository.wima.ac.id/id/eprint/10772

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