کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7074086 | 1459950 | 2015 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Characterization of a multi-metal binding biosorbent: Chemical modification and desorption studies
ترجمه فارسی عنوان
خصوصیات متشکل از متورم های متالورژی: مطالعات اصلاح شیمیایی و تخلیه
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
This work attends to preparation and characterization of a novel multi-metal binding biosorbent after chemical modification and desorption studies. Biomass is a combination of tea waste, maple leaves and mandarin peels with a certain proportion to adsorb cadmium, copper, lead and zinc ions from aqueous solutions. The mechanism involved in metal removal was investigated by SEM, SEM/EDS and FTIR. SEM/EDS showed the presence of different chemicals and adsorbed heavy metal ions on the surface of biosorbent. FTIR of both unmodified and modified biosorbents revealed the important role of carboxylate groups in heavy metal biosorption. Desorption using different eluents and 0.1Â M HCl showed the best desorption performance. The effectiveness of regeneration step by 1Â M CaCl2 on five successive cycles of sorption and desorption displays this multi-metal binding biosorbent (MMBB) can effectively be utilized as an adsorbent to remove heavy metal ions from aqueous solutions in five cycles of sorption/desorption/regeneration.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 193, October 2015, Pages 477-487
Journal: Bioresource Technology - Volume 193, October 2015, Pages 477-487
نویسندگان
Atefeh Abdolali, Huu Hao Ngo, Wenshan Guo, John L. Zhou, Bin Du, Qin Wei, Xiaochang C. Wang, Phuoc Dan Nguyen,