MODIFICATION OF POLYMERIC NANOPOROUS TFC MEMBRANES FOR INCREASING THE MEMBRANE PERFORMANCE

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MANSOURPANAH Y.; JAFARI Z.

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Seminar: IRANIAN CHEMISTRY CONGRESS
Year:2013 | Issue:16

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Title

MODIFICATION OF POLYMERIC NANOPOROUS TFC MEMBRANES FOR INCREASING THE MEMBRANE PERFORMANCE

Author(s)

MANSOURPANAH Y. | JAFARI Z. | Issue Writer Certificate

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Abstract

IN THIS STUDY INTERFACIAL POLYMERIZATION TECHNIQUE WAS EMPLOYED BY APPLYING TRIMESOYLCHOLORIDE (TMC) AND PIPERAZINE (PIP) AS REAGENTS TO PREPARE POLYAMIDE (PA) SKIN LAYER ON A POLYETHERSULFONE (PES) SUPPORT. THE SURFACE OF OBTAINED THIN LAYERS MODIFIED WITH POLY (AMIDOAMINE) (PAMAM) DENDRIMERS. THE DIFFERENT CONCENTRATIONS OF PAMAM [0.5, 1.5, 3WT%] WERE CHOSEN TO MODIFICATION PROCESS. THE DIFFERENT CONCENTRATIONS OF DENDRIMERS IN AQUEOS PHASE AND THEIR EFFECTS ON MORPHOLOGY AND PERFORMANCE OF NANOFILTRATION MEMBRANE WERE INVESTIGATED. THE POLYETHERSULFONE SUPPORT WAS PREPARED BY DISSOLVING PES IN DIMETHYLFORMAMID (DMF) WITH PEG AND ACRYLIC ACID. THIN FILM COMPOSITE MEMBRANE WAS PREPARED VIA POLYMERIZATION BETWEEN AQUEOUS PIP AND ORGANIC TMC SOLUTION. THE PERFORMANCE OF PREPARED MEMBRANES WAS ANALYZED USING A DEAD-END SYSTEM. THE REJECTION OF RESULTING MEMBRANES INCREASED WITH INCREASING CONCENTRATION OF PAMAM AND/OR GENERATION NUMBERS OF PAMAM FOR NACL CONCENTRATION. THE SALTS REJECTIONS SEQUENCE OF RESULTING MEMBRANE IS MGCL2>NACL>NA2SO4, WHICH REFERS TO THE POSITIVELY CHARGED NF MEMBRANE. THE RESULTED MEMBRANES ARE SUITABLE FOR SEPARATING CATIONIC SOLUTES FROM OTHERS. THESE RESULTS DEMONSTRATE THAT THE REJECTION OF SALTS IS NOT ONLY RELATED WITH THE PORE SIZE OF THE MEMBRANE, BUT ALSO LARGELY DEPENDS ON THE ELECTROSTATIC ACTION BETWEEN THE MEMBRANE AND IONS IN SOLUTION. THE REJECTION OF NACL FOR NF WAS 89% AND THE REJECTION OF MGCL2 WAS 92%. FTIR-ATR, XPS, SEM AND WATER CONTACT ANGLE WERE EMPLOYED TO CHARACTERIZE THE CHEMICAL AND PHYSICAL CHANGES IN RESULTING MEMBRANES.

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APA: Copy

MANSOURPANAH, Y., & JAFARI, Z.. (2013). MODIFICATION OF POLYMERIC NANOPOROUS TFC MEMBRANES FOR INCREASING THE MEMBRANE PERFORMANCE. IRANIAN CHEMISTRY CONGRESS. SID. https://sid.ir/paper/914419/en

Vancouver: Copy

MANSOURPANAH Y., JAFARI Z.. MODIFICATION OF POLYMERIC NANOPOROUS TFC MEMBRANES FOR INCREASING THE MEMBRANE PERFORMANCE. 2013. Available from: https://sid.ir/paper/914419/en

IEEE: Copy

Y. MANSOURPANAH, and Z. JAFARI, “MODIFICATION OF POLYMERIC NANOPOROUS TFC MEMBRANES FOR INCREASING THE MEMBRANE PERFORMANCE,” presented at the IRANIAN CHEMISTRY CONGRESS. 2013, [Online]. Available: https://sid.ir/paper/914419/en

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