ANTIBACTERIAL ACTIVITY OF A NANOFILTRATION MEMBRANE FUNCTIONALIZED WITH STABLE TiO2 NANOPARTICLE SOLUTION PREPARED BY USING NEWLY MODIFIED HYDROTHERMAL METHOD

Authors : Aslı ÇOBAN, Cengiz KAYA, Eyüp DEBİK, Gül KAYKIOĞLU

Pages : 61-68

View : 35 | Download : 9

Publication Date : 2017-03-01

Article Type : Research Paper

Abstract :Stable nanoparticle solution is the key parameter to obtain a uniform coating layer on the membrane surface without any aggregation for an efficient photocatalytic activity. In this study, a commercial titanium dioxide insert ignore into journalissuearticles values(TiO2, P25); was used to functionalize the nanofiltration insert ignore into journalissuearticles values(NF); membrane surface to be able to increase the water disinfection effects of the membrane. A polymer insert ignore into journalissuearticles values(Polyethyleneimine, PEI); bonding was used to be able to disperse TiO2 evenly in the solution by using newly modified hydrothermal method. Stability tests were conducted to test the stability of the nanomaterial in suspension. For surface coating, the NF membrane was incubated in contact with the uniform/stable nanoparticle solution. Contact angle measurements were conducted to evaluate the surface characteristic of the functionalized membrane and antibacterial tests were performed to evaluate the water disinfection effects of the functionalized membrane.
Keywords : Nanoparticle, TiO2, membrane, surface coating, antibacterial activity

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