کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8332234 | 1540248 | 2015 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
New heterocycle modified chitosan adsorbent for metal ions (II) removal from aqueous systems
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
زیست شیمی
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چکیده انگلیسی
A new hydrogel based on a modified chitosan CS-B was synthesized and evaluated for its metal ion removal from aqueous systems. The CS-B hydrogel was prepared through modification of chitosan with 4-((1, 3-dioxoisoindolin-2-ylimino) methyl) benzaldehyde as a heterocyclic component. The new hydrogel was analyzed by diverse techniques such as FTIR, XRD, TGA, SEM, and swelling tests. The adsorption capacity of CS-B for metal ions Co2+, Hg2+, Cu2+, Zn2+, and Pb2+ from aqueous systems at different pH values showed various levels of efficiency. The metal ion uptake data over a range of pH values for Co2+ and Hg2+ showed the highest adsorption capacity while Cu2+, Zn2+, and Pb2+ showed moderate adsorption capacity. Selective metal ion efficiency was highest for Co2+ and lowest for Hg2+ in their binary mixture.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Biological Macromolecules - Volume 72, January 2015, Pages 110-116
Journal: International Journal of Biological Macromolecules - Volume 72, January 2015, Pages 110-116
نویسندگان
Nadia G. Kandile, Hemat M. Mohamed, Mansoura I. Mohamed,