شماره ركورد كنفرانس :
4865
عنوان مقاله :
Kinetic and Isotherm Modeling Studies of the V(V) Extraction from Sulfate Solution Using an Aliquat® 336/PVDF-Co-HFP Polymer Inclusion Membrane
پديدآورندگان :
Bahramia S bahrami_salar@znu.ac.ir The University of Zanjan , Cheraghia M md.cheraghi@znu.ac.ir The University of Zanjan , Dolatyarib L leiladolatyari@yahoo.com Islamic Azad University, Zanjan , Yaftiana M. R. yaftian@znu.ac.ir The University of Zanjan , Shayani Jama H shayan@znu.ac.ir The University of Zanjan , . Kolevc S. D s.kolev@unimelb.edu.au The University of Melbourne
كليدواژه :
(Extraction , Isotherm , Kinetic , Polymer Inclusion Membrane , V(V
عنوان كنفرانس :
بيست و دومين كنفرانس ملي شيمي فيزيك ايران
چكيده فارسي :
A polymer inclusion membrane (PIM) composed of poly(vinylidenefluoride-co-hexafluoropropylene) (PVDF-HFP) base polymer, tricaprylmethylammonium chloride (Aliquat® 336) extractant, and dibutyl phthalate (DBP) plasticizer with the 50/40/10 wt% ratio was prepared and characterized. This PIM was able to efficiently extract vanadium(V) from sulfate solutions adjusted to pH 2.5. The fabricated membrane was further used for the kinetic and isotherm studies. The process kinetic was well described by the pseudo-second order model. The adsorption isotherm was best fitted by the Langmuir equation, and the calculated maximum sorption capacity of V(VI) into the studied PIM was found to be 61 mg vanadium(V)/g PIM. The kinetic and isotherm experiments confirm that the sorption process of V(V) into the optimal plasticized PVDF-HFP based PIM is taken place via a chemisorption mechanism.
