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- 저자 : Farrokh Mohammadnezhad (검색결과 1 건)
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A novel Ce-MOF/PES mixed matrix membrane; synthesis, characterization and antifouling evaluation
Farrokh Mohammadnezhad,Mostafa Feyzi,Sirus Zinadini 한국공업화학회 2019 Journal of Industrial and Engineering Chemistry Vol.71 No.-
A new polyethersulfone (PES) nanofiltration membrane, modified with nanocrystalline Ce(III)metal–organic framework (MOF), was produced via the phase inversion method and characterizedusing scanning electron microscopy (SEM), atomic force microscopy (AFM), water contact angle andporosity measurements. The morphology and performance of these membranes were investigated interms of pure waterflux, water contact angle, fouling parameters and dye removal. Modified PESmembranes showed an increase in the pure waterflux relative to the bare membrane. The changes insublayer and skin layer of modified membranes and also increased pore size and porosity is obvious fromthe SEM images of PES membranes porosity measurements. Moreover, the surface hydrophilicity of theMOF embedded membranes was improved due to the tendency of water to the membrane surface. Theantifouling properties of the membranes were evaluated by powder milk solution and measuring thefluxrecovery ratio (FRR). The results revealed the modified membrane with 0.5 wt.% of MOF nanoparticle(NPs) had the best antifouling property and also the highest porosity and waterflux. Nanofiltrationperformance of membranes was appraised by probing of the retention of Direct Red 16. The resultshowed that all the modified membranes have a higher dye rejection capacity than the bare PESmembrane.
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