کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
623674 | 1455354 | 2014 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrodialysis heterogeneous anion exchange membrane modified by PANI/MWCNT composite nanoparticles: Preparation, characterization and ionic transport property in desalination
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
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چکیده انگلیسی
In this research polyaniline (PANI)-co-multi walled carbon nanotubes (MWCNTs)/polyvinylchloride (PVC) nano-composite heterogeneous anion exchange membranes were prepared by solution casting technique. The effect of PANI/MWCNT nanoparticle concentration on membrane electrochemical properties was studied. Membrane water content was decreased by the increase of nanoparticle concentration. Ion exchange capacity (IEC) was improved initially by the increase of nanoparticle concentration up to 2Â wt.% and then showed decreasing trend by more additive content from 2 to 4Â wt.%. IEC was enhanced again with more increase in additive concentration from 4 to 16Â wt.%. Fixed ionic concentration (FIC) also showed increasing trend by an increase in nanoparticle content. Membrane potential, transport number and selectivity were improved in NaCl and Na2SO4 ionic solutions by the increase of PANI/MWCNT nanoparticles. Also membranes exhibited lower selectivity and transport number for bivalent ions compared to monovalent type. Membrane permeability and flux were enhanced initially in both monovalent and bivalent ionic solutions by an increase in additive concentration up to 1Â wt.% and then showed decreasing trends by more additive content from 1 to 16Â wt.%. Prepared membranes showed lower permeability and flux for bivalent ions compared to monovalent type. Modified membranes showed better performance in comparison with pristine membrane.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 341, 15 May 2014, Pages 107-114
Journal: Desalination - Volume 341, 15 May 2014, Pages 107-114
نویسندگان
S.M. Hosseini, F. Jeddi, M. Nemati, S.S. Madaeni, A.R. Moghadassi,