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
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات علوم زمین و سیاره ای (عمومی)
پیش نمایش صفحه اول مقاله
Surface modification of natural zeolite by chitosan and its use for nitrate removal in cold regions
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
نویسندگان
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