کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
577019 | 1453096 | 2014 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fabrication of glycine-functionalized maghemite nanoparticles for magnetic removal of copper from wastewater
ترجمه فارسی عنوان
ساخت نانو ذرات مغناطش مغناطیسی گلیسین برای حذف مغناطیسی مس از فاضلاب
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
نانوذرات مغناطیسی، گلیسین عامل فاضلاب، جذب مس،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
چکیده انگلیسی
Maghemite nanoparticles (MNPs) were functionalized with glycine, by a cost-effective and environmentally friendly procedure, as an alternative route to typical amine-functionalized polymeric coatings, for highly efficient removal of copper ions from water. MNPs were synthesized by co-precipitation method and adsorption of glycine was investigated as a function of ligand concentration and pH. The efficiency of these functionalized nanoparticles for removal of Cu2+ from water has been explored and showed that adsorption is highly dependent of pH and that it occurs either by forming chelate complexes and/or by electrostatic interaction. The adsorption process, which reaches equilibrium in few minutes and fits a pseudo second-order model, follows the Langmuir adsorption model with a very high maximum adsorption capacity for Cu2+ of 625Â mg/g. Furthermore, these nanoadsorbents can be used as highly efficient separable and reusable materials for removal of toxic metal ions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 264, 15 January 2014, Pages 153-160
Journal: Journal of Hazardous Materials - Volume 264, 15 January 2014, Pages 153-160
نویسندگان
Natálie C. Feitoza, Thamires D. Gonçalves, Jéssica J. Mesquita, Jucely S. Menegucci, Mac-Kedson M.S. Santos, Juliano A. Chaker, Ricardo B. Cunha, Anderson M.M. Medeiros, Joel C. Rubim, Marcelo H. Sousa,