| Literature DB >> 19917518 |
Feng-Chin Wu1, Ru-Ling Tseng, Ruey-Shin Juang.
Abstract
A literature survey on liquid-phase adsorption of selected heavy metals including Cu(II), Zn(II), Ni(II), Cd(II), Pb(II), Hg(II), and Cr(VI) on chitosan (CTS) and its derivatives was made from the viewpoint of adsorption capacity. This parameter was obtained from the Langmuir fit of isotherm data. The magnitude of adsorption capacity of heavy metals on pristine CTS was also used to discuss the mechanism of adsorption; that is, how many amino groups in CTS chains would coordinate with one heavy metal ion. Furthermore, a newly defined parameter, the approaching equilibrium factor R(L), was proposed to quantitatively indicate the favorability of the related adsorption process and to judge the correctness of adsorption capacity determined by the Langmuir equation. Copyright 2009 Elsevier Ltd. All rights reserved.Entities:
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Year: 2009 PMID： 19917518 DOI： 10.1016/j.jenvman.2009.10.018
Source DB: PubMed Journal: J Environ Manage ISSN： 0301-4797 Impact factor: 6.789