Thermodynamic aspects of sorption of Fe2+ onto unbleached Kraft fibres

C H Chia; Tuan D Duong; Kien L Nguyen; S Zakaria

doi:10.1016/j.jcis.2006.11.037

Thermodynamic aspects of sorption of Fe2+ onto unbleached Kraft fibres

J Colloid Interface Sci. 2007 Mar 1;307(1):29-33. doi: 10.1016/j.jcis.2006.11.037. Epub 2006 Nov 30.

Authors

C H Chia¹, Tuan D Duong, Kien L Nguyen, S Zakaria

Affiliation

¹ School of Applied Physics, Faculty of Science and Technology, University Kebangsaan Malaysia, 43600 Bangi, Selangor Darul Ehsan, Malaysia.

PMID: 17174968
DOI: 10.1016/j.jcis.2006.11.037

Abstract

The sorption of Fe(2+) onto unbleached kraft fibre was investigated at different conditions such as pH, temperature, and concentrations. The sorption, which increased with concentration and temperature, followed the Langmuir isotherm. Thermodynamically, the process was spontaneous and endothermic. It was found that the precipitation of Fe(2+) was highly dependent on pH and reached 100% when pH exceeded approximately 8.