Synthesize of hybrid membranes using Amylose modified MWCNTs as additives for potent HA removal

Up to now, a variety of polysaccharide additives materials such as cellulose, chitosan, starch, etc. were embedded in the casting solution of a polymeric membrane matrix to modify polymeric membranes. This result in improvement of the pore formation, the upgrading of surface hydrophilicity, enhancement of antifouling property as well as improved separation, reaction and sorption capacity.1-2 Starch is specially one of the most promising natural polymers in many researches which was blended with various polymers and used for purpose of membrane fabrication.3-4 In this work we were extracted amylose biopolymer from starch and used it for loading of MWCNTs by noncovalent interactions. Then their surfaces were modified with CA molecules by esterification reaction. Afterward, Am-MWCNTs-CA/PES mixed matrix membranes were fabricated. Finally, the effects of Am-MWCNTs-CA on the membrane properties such as performance, morphology, hydrophilicity, antifouling, and Humic acid (HA) removal were studied. AFM, SEM, ATR-IR etc. analyses have also been employed to characterize the obtained nanocomposite membranes

کلیدواژه ها:

Polysaccharide ، Am-MWCNTs-CA ، Citric acid ، polymeric membrane