Fabrication and electrochemical property modification of mixed matrix heterogeneous cation exchange membranes filled with Fe3O4/PAA core-shell nanoparticles
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In the current research, iron oxide nanoparticles were functionalized by acrylic acid polymerization. The Fe3O4/PAA core-shell nanoparticles were utilized for the modification of cation exchange membranes. Ion exchange membranes were prepared by solution casting technique using cation exchange resin powder as functional group agent and tetrahydrofuran as solvent. FTIR analysis proved the formation of PAA on nanoparticles. The SOM images also showed uniform particle distribution for the prepared membrane relatively. The membrane water content was declined from 30 to 17 % by increase of nanoparticle content ratio in membrane matrix. The contact angle measurements showed that membrane surface hydrophilicity was improved by utilizing of nanoparticles in the membrane matrix. The membrane potential, permselectivity, and transport number were improved initially by increase of nanoparticle concentration in the casting solution and then began to decrease by more additive concentration. Membrane ionic flux and permeability were enhanced initially by increase of nanoparticle loading ratio up to 0.5 %wt in membrane matrix and then showed decreasing trend by more increase of nanoparticle concentration from 0.5 to 4 %wt. Membrane areal electrical resistance was decreased sharply by utilization of nanoparticles up to 0.5 %wt in membrane matrix then began to increase by more additive concentration. The prepared membranes exhibited superior selectivity and low ionic flux at neutral condition compared to other acidic and alkaline environments.
KeywordsElectrochemical characterization Fe3O4/PAA core-shell nanoparticles Ion exchange membrane Mixed matrix pH effect
The authors gratefully acknowledge Arak University for the financial support during this research.
- 10.Hosseini SM, Rahzani B, Asiani H, Khodabakhshi AR, Hamidi AR, Madaeni SS, Moghadassia CAR, Seidypoor A (2014) Surface modification of heterogeneous cation exchange membranes by simultaneous using polymerization of (acrylic acid-co-methyl methacrylate): membrane characterization in desalination process. Desalination 345:13–20CrossRefGoogle Scholar
- 15.Caprarescu S, Purcar V, Vaireanu DI (2012) Separation of copper ions from synthetically prepared electroplating wastewater at different operating conditions using electrodialysis. Sep Sci Technol 47(16):2273–2280Google Scholar
- 24.Ghaemi N, Madaeni SS, Daraei P, Rajabi H, Zinadini S, Alizadeh A, Heydari R, Beygzadeh M, Ghouzivand S (2015) Polyethersulfone membrane enhanced with iron oxide nanoparticles for copper removal from water: application of new functionalized Fe3O4 nanoparticles. Chem Eng J 263:101–112CrossRefGoogle Scholar
- 29.Ye CZ, Ariya PA, Co-adsorption of gaseous benzene, toluene, ethyl benzene, m-xylene (BTEX) and SO2 on recyclable Fe3O4 nanoparticles at 0–101% relative humidities.Google Scholar
- 31.Ma W, Xu S, Li J, Guo J, Lin Y, Wang C, Hydrophilic Dual-Responsive Magnetite/PMAA Core/Shell Microspheres with High Magnetic Susceptibility and pH Sensitivity via Distillation-Precipitation Polymerization, Published online 27 April 2011 in Wiley Online Library.Google Scholar
- 37.Sata T (2004) Ion exchange membranes: preparation, characterization, modification and application. The Royal Society of Chemistry, Cambridge, United KingdomGoogle Scholar
- 40.Tanaka Y (2007) Ion exchange membranes: fundamentals and applications, membrane science and technology series, vol 12. Elsevier, NetherlandsGoogle Scholar
- 46.Lide DR, (2006–2007) CRC Handbook of Chemistry and Physics, 87th ed. CRC PressGoogle Scholar