USING OF POMEGRANATE PEEL CARBON FOR REMOVAL OF Fe II FROM AQUEOUS SOLUTION

سال انتشار: 1392
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 1,004

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شناسه ملی سند علمی:

NCNC01_062

تاریخ نمایه سازی: 14 شهریور 1392

چکیده مقاله:

Pomegranate peel carbon was tested for its ability to adsorb iron (II) ions from solutions with the altering the parameters such as pH, contact time, sorbentweight, metal concentration and temperature. The adsorption process was analyzed on the basis of pseudo-first-order, pseudo-second-order kineticmodels and also by Freundlich and Langmuir isotherm models. The maximum adsorption capacity for pomegranate peel activated carbon as calculatedby Langmuir model were found to be 18.52 mg g−1 at pH 6.0, 1 g L-1 of biosorbent concentration and 29 oC. The ability of new sorbent compared with otherbiomass waste materials. Thermodynamic parameters such as the changes of free energy, enthalpy andentropy were also evaluated. The results indicated that the sorption of Iron(II) ions onto the pomegranate peel carbon was a exothermic process that could be well fit with Langmuir adsorption model and pseudo-first-order kinetic model.

نویسندگان

Masoud Rohani Moghadam

Department of Chemistry, Faculty of Science, Vali-e-Asr University, Rafsanjan, Iran, ۷۷۱۸۸۹۷۱۱۱

Zienab Dashti

Islamic Azad University, Yazd, Iran

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