Kurniawan, Alfin, Kosasih, Aline Natasia, Febrianto, Jonathan, Yi-Hsu, Ju, Sunarso, Jaka, 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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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 |
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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.ukwms.ac.id/id/eprint/10772 |
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