کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5748525 | 1619100 | 2017 | 37 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Removal of cadmium ions from aqueous solutions using TMU-16-NH2 metal organic framework
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
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چکیده انگلیسی
In this research, removal of cadmium from aqueous samples by TMU-16-NH2 metal-organic framework was investigated. In a batch process method, the effect of pH, initial concentration, contact time, temperature and sorbent weight on sorption process was studied. Equilibrium isotherms were fitted by Langmuir and Freundlich equations. The maximum adsorption capacity of Cd(II) was determined 126.6 mg gâ1. The metal-organic framework was successfully applied to the quick extraction of trace amounts of Cd(II) ions in water samples. The maximum removal percentage was obtained 98.91 at pH 6.0 and 30 min contact time. The Gibbs free energy â(ÎG0â), the enthalpy (ÎH0), and the entropy (ÎS0) were also calculated from thermodynamic studies. âThe positive values of ÎH0, ÎS0 and the negative value of ÎG0, confirmed the endothermic nature, randomness and spontaneity of adsorption process.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Nanotechnology, Monitoring & Management - Volume 7, May 2017, Pages 89-96
Journal: Environmental Nanotechnology, Monitoring & Management - Volume 7, May 2017, Pages 89-96
نویسندگان
Mahmoud Roushani, Zahra Saedi, Yar Mohammad Baghelani,