کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1385205 | 982435 | 2006 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Study on adsorption behavior of crosslinked cationic starch maleate for chromium(VI)
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
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چکیده انگلیسی
Crosslinked cationic starch maleates (CCSM) containing quaternary ammonium cationic groups were prepared by a dry reaction. The adsorption behavior of crosslinked cationic starch maleates for Cr(VI) was investigated. Physicochemical factors such as equilibrium time, temperature, and initial solution pH affecting magnitude of Cr(VI) adsorption were studied. Their adsorption behavior was found to follow langmuir isotherm. The adsorption capacity decreased with increasing DS of anionic maleic groups. The thermodynamic investigation demonstrated that the adsorption process was exothermic, and thermodynamic parameters were calculated at different DS.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 66, Issue 2, 27 October 2006, Pages 246–251
Journal: Carbohydrate Polymers - Volume 66, Issue 2, 27 October 2006, Pages 246–251
نویسندگان
Guo-xiu Xing, Shu-fen Zhang, Ben-zhi Ju, Jin-zong Yang,