Effect Of Thermal Treatment On The Characteristics Of PES/PVA Nanocomposite Membranes Modified With TiO2 Nanoparticles :A Comparison Between 1-step and 2-step Thermal Treatment

PES/PVA thin film composites were modified with TiO2 nanoparticles via dip coating method. Thermal treatment of total modified membranes plays a semi- catalytic role incoating process. Hence, 4-temprature levels were selected and investigated, noticing that there is an important restriction dueto the stability limitation of polymers under thermal treatment process. This phenomenon also leads to the concept of 2-steptreatment. 2-step thermal treatment is a more moderate process which leads to a more stable structure