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- Title
Sorptive potential of glutaraldehyde cross-linked epoxyaminated chitosan for the removal of Pb(II) from aqueous media: kinetics and thermodynamic profile.
- Authors
Rijith, Sreenivasan; Anirudhan, Thayyath Sreenivasan; Sumi, Vijayakumari Sasidharan nair; Shripathi, Thoudinja
- Abstract
In this study, the removal of Pb(II) ion from aqueous solutions by glutaraldehyde-cross-linked epoxyaminated chitosan (GA-C-ENCS) was investigated. The adsorbent (GA-C-ENCS) was characterized by FTIR, SEM–EDS, X-ray photoelectron spectroscopy, and potentiometric titration. Equilibrium sorption experiments were carried out at different operational conditions such as concentration, temperature, and pH values. Among the equilibrium studies the Langmuir isotherm model yields a much better fit than the Freundlich and Dubinin–Radushkevich models. The kinetics of sorption was investigated. The response time evaluation and batch adsorber design analysis was carried out using operational lines. Thermodynamic parameters reveal the spontaneous nature of sorption.
- Subjects
LEAD removal (Water purification); CHITOSAN; GLUTARALDEHYDE; EPOXY compounds; AQUEOUS solutions; AMINATION; THERMODYNAMICS; ADSORPTION kinetics
- Publication
Desalination & Water Treatment, 2016, Vol 57, Issue 32, p15083
- ISSN
1944-3994
- Publication type
Article
- DOI
10.1080/19443994.2015.1079252