کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1985569 | 1540227 | 2016 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Removal of Pb(II) ions by using magnetic chitosan-4-((pyridin-2-ylimino)methyl)benzaldehyde Schiff's base
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موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
زیست شیمی
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چکیده انگلیسی
A novel crosslinked magnetic chitosan-4-((pyridin-2-ylimino)methyl)benzaldehyde Schiff's Base (m-CSPIB) was prepared by crosslinking of magnetic iron oxide nanoparticles with chitosan-4-((pyridin-2-ylimino)methyl)benzaldehyde schiff's base and used as an biosorbent for the removal of Pb(II) ions from aqueous environment. The biopolymer has been characterized by XRD, FT-IR, SEM, TEM, 1H NMR and VSM analysis. Kinetic studies were performed, and the data were fitted well with the pseudo-second-order model. The equilibrium data followed Langmuir isotherm model and the maximum monolayer sorption capacity was found to be 104.16 for Pb(II) ions at 323Â K. Different thermodynamic parameters namely, change in Gibbs free energy, enthalpy change, and entropy changes were also evaluated from the temperature dependence, and the results suggested that the sorption of Pb(II) onto m-CSPIB was feasible, spontaneous and endothermic in nature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Biological Macromolecules - Volume 93, Part A, December 2016, Pages 408-417
Journal: International Journal of Biological Macromolecules - Volume 93, Part A, December 2016, Pages 408-417
نویسندگان
Gutha Yuvaraja, Munagapati Venkata Subbaiah,