Sorption and immobilization of cesium by natural clinoptilolite zeolite modified with nickel hexacyanoferrate
محل انتشار: چهارمین کنفرانس ملی زئولیت ایران
سال انتشار: 1396
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 437
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شناسه ملی سند علمی:
NZEOLITE04_076
تاریخ نمایه سازی: 11 شهریور 1397
چکیده مقاله:
In this study, Nickel Hexacyanoferrate-Clinoptilolite composite (NiHCF-Clino) was prepared and used as an ion exchanger for the removal of cesium from aqueous solution. The effect of various parameter like the pH, contact time, temperature and initial concentration of cesium on adsorption efficiencies of NiHCF-Clino has been studied systematically by batch experiments. The results show that maximum adsorption capacity of cesium onto NiHCFClino adsorbent was found to be 108.69 mg.g-1. Then, the cesium-loaded adsorbents were heated at different temperature and the leach test carried out on all the heat-treated samples. Leaching results show that immobilizationability of ion cesium in the heated-treated materials increased as the treatment temperature was increased
نویسندگان
Parisa Sedighi
Department of Chemistry, University of Maragheh, Maragheh, ۵۵۱۸۱۸۳۱۱۱, Iran
Reza Davarkhah
Nuclear Science and technology Research Institute, P. O. Box ۱۱۳۶۵-۸۴۸۶, Tehran, Iran
Armen Avanes
Department of Chemistry, University of Maragheh, Maragheh, ۵۵۱۸۱۸۳۱۱۱, Iran
Hamid Sepehrian
Nuclear Science and technology Research Institute, P. O. Box ۱۱۳۶۵-۸۴۸۶, Tehran, Iran