کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10603259 | 982474 | 2013 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Uptake of perchlorate from aqueous solutions by amine-crosslinked cotton stalk
ترجمه فارسی عنوان
جذب پرکلرات از محلول های آبی توسط ساقه نخی پنبه ای بافت آمین
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
چکیده انگلیسی
Virgin cotton stalk was produced into an effective biosorbent for perchlorate adsorption. Surface analysis including BET surface area and SEM illustrated the reduction of porous structure in amine-crosslinked cotton stalk (AC-CS). Elemental and zeta potential analysis validated the graft of some positively charged amine groups on surface of AC-CS. Spectra analysis (XPS, FTIR and Raman spectra) suggested that interaction between AC-CS and ClO4â should be based on electrostatic attraction. The maximum adsorption capacity (qmax) of AC-CS for perchlorate at different pHs (3.0, 6.0, 9.0 and 11.0) were calculated as 29.6, 42.6, 41.0 and 33.0Â mg/g, respectively. The saturated perchlorate uptakes in column were in range of 25.0-38.1Â mg/g at different pHs. In addition, the exhausted AC-CS column was regenerated by 0.5Â mol/L of NaCl solution, which was adequate for almost complete desorption of the perchlorate.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 98, Issue 1, 15 October 2013, Pages 132-138
Journal: Carbohydrate Polymers - Volume 98, Issue 1, 15 October 2013, Pages 132-138
نویسندگان
Xing Xu, Baoyu Gao, Xin Tan, Xiaoxiao Zhang, DongTing Yue, Qinyan Yue,