کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
581782 | 1453161 | 2009 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Removal of fluoride ions from aqueous solution by conducting polypyrrole
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Removal of fluoride ions from aqueous solution by conducting polypyrrole Removal of fluoride ions from aqueous solution by conducting polypyrrole](/preview/png/581782.png)
چکیده انگلیسی
Conducting polypyrrole was found to possess potential efficiency to remove fluoride ions from aqueous solutions. The amount of fluoride ions removed per unit mass of the adsorbent, at 30 °C from 10 mg/L fluoride ion solution, was estimated to be 6.37 mg/g. Batch sorption studies have been carried out to determine the effect of initial concentration of the sorbate, agitation time, adsorbent dose, pH, co-ions and temperature on the removal of fluoride by polypyrrole. The sorptive removal was found to be strongly pH and temperature dependent. The experimental data fitted well to the Freundlich and Dubinin-Radushkevick (D-R) isotherms. Thermodynamic parameters such as ÎH0, ÎS0 and ÎG0 were calculated indicating that the adsorption process was spontaneous and exothermic. FT-IR spectral studies suggested that the mechanism of fluoride ions removal follow chemisorption.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 167, Issues 1â3, 15 August 2009, Pages 300-305
Journal: Journal of Hazardous Materials - Volume 167, Issues 1â3, 15 August 2009, Pages 300-305
نویسندگان
M. Karthikeyan, K.K. Satheeshkumar, K.P. Elango,