کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4676335 | 1634493 | 2010 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Surface modification of natural zeolite by chitosan and its use for nitrate removal in cold regions
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موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علوم زمین و سیاره ای (عمومی)
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چکیده انگلیسی
Surface modifications of natural zeolite were performed by coating it with a chitosan layer. The chitosan coated zeolite (Ch-Z) was protonated with either sulfuric or hydrochloric acid and tested for its suitability to capture nitrate from water at 20 and 4 °C. The surface characterization of the Ch-Z was done by SEM, FTIR, TGA and nitrogen adsorption tests. The results of these tests showed evidence of chitosan coating onto zeolite particles. Ch-Z has comparable capacity to other weak anion exchangers with a nitrate ion exchange capacity 0.74 mmol NO3 g− 1 (protonated with HCl).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cold Regions Science and Technology - Volume 62, Issues 2–3, July 2010, Pages 92–97
Journal: Cold Regions Science and Technology - Volume 62, Issues 2–3, July 2010, Pages 92–97
نویسندگان
Meenakshi Arora, Natalia K. Eddy, Kathryn A. Mumford, Yoshinari Baba, Jilska M. Perera, Geoff W. Stevens,