HEAVY METAL REMOVAL FROMAQUEOUS SOLUTION BY NANOCOMPOSITE ALGINATE_MCM-41
سال انتشار: 1390
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 447
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شناسه ملی سند علمی:
UFGNSM03_156
تاریخ نمایه سازی: 10 تیر 1396
چکیده مقاله:
In this study, a new nanocomposite adsorbent was synthesized by encapsulation of the nanoporous MCM-41 in the biopolymeric matrix of calcium alginate and its adsorption behavior for some of toxic metals (Pb, Zn, Hg, Co, Ni) was investigated. The nanocomposite alginate-MCM-41 (NCAMCM-41) was characterized using powder X-ray diffraction and nitrogen adsorption-desorption isotherm data. The effect of pH, contact time, temperature, initial concentration and adsorption kinetics were studied by batch method. The results show that the NCA-MCM-41 has high affinity for adsorption of lead and cobalt compared with alginate. Freundlich and Longmuir models were used for mathematics description of the adsorption isotherm.
کلیدواژه ها:
نویسندگان
H. TAVAKOLI
Faculty of Science, Islamic Azad University, Nour Branch Nour, Iran
H. SEPEHRLAN
NFCRS, Nuclear science and technology Research Institute, AEOI Tehran, Iran
R. CHERAGHALI
Chemistry Department, Islamic Azad University, Saveh Branch Saveh, Iran