doi: 10.18178/ijesd.2018.9.3.1077
Adsorption of Fe Ions from Aqueous Solution Using α-Keratin-Coated Alginate Biosorbent
G. Fadillah
, , ,
E. V. Maylinda ,
- Institute of Technology Bandung, Indonesia
Abstract
The biosorbent α-keratin-alginate (KA) wasprepared by using the encapsulation technique in CaCl2 2 %(w/v) solution. The biosorbent was characterized by FourierTransform Infrared (FTIR) and Scanning Electron Microscope(SEM). The extent of adsorption was found to be a function ofthe composition of α-keratin and alginate, the pH of solutionand contact time. The optimum adsorption of Fe ions inaqueous solution was found at the composition of α-keratin andalginate of 1:2 (w/w), the pH at 7.0 and contact time at 60minutes. The adsorption of Fe ions on KA biosorbent wascomparatively higher than α-keratin and alginate only. Theadsorption capacity of KA biosorbent has the maximumadsorption capacity of 658.4 mg/g while biosorbent α-keratinand alginate are 464.7 mg/g and 528.1 mg/g, respectively.Adsorption of Fe ions in aqueous solution followed theFreundlich adsorption isotherm, and the dynamic adsorptionmodel could be described through a pseudo-second orderkinetics.
Keywords
- α-keratin
- adsorption
- alginate
- biosorbent
- Fe
How to Cite
G. Fadillah, E. N. K. Putri, S. Febrianastuti, E. V. Maylinda, and C. Purnawan, "Adsorption of Fe Ions from Aqueous Solution Using α-Keratin-Coated Alginate Biosorbent," International Journal of Environmental Science and Development, vol. 9, no. 3, pp. 82-85, 2018. https://doi.org/10.18178/ijesd.2018.9.3.1077
Copyright & License
Copyright © 2018 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).