کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
579452 1453141 2011 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Adsorption of chromium (VI) from aqueous solutions by cellulose modified with β-CD and quaternary ammonium groups
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
Adsorption of chromium (VI) from aqueous solutions by cellulose modified with β-CD and quaternary ammonium groups
چکیده انگلیسی
Cellulose powder was grafted with the vinyl monomer glycidyl methacrylate using ceric ammonium nitrate as initiator and was further derived with β-CD and quaternary ammonium groups to build Cell-g-GMA-β-CDN+ adsorbent. Epoxy cellulose was made up of Cell-g-GMA and Cell-hydro-g-GMA, and was found to contain 3.71 mmol g−1 epoxy groups. The adsorption process of the modified cellulose was described by the Langmuir model of adsorption well, and the maximum adsorption capacity of chromium (VI) reached 61.05 mg g−1. The adsorption-desorption tests of β-CDN+-type cellulose derivatives exhibited that the reproducibility of the adsorbent was well and the adsorbent could be reused five times at least.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 187, Issues 1–3, 15 March 2011, Pages 303-310
نویسندگان
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