PHOTOCATALYTIC AND ANTIMICROBIAL ACTIVE POLYMER NANOCOMPOSITES MEMBRANE FOR WATER PURIFICATION

摘要

Titania-coated nickel ferrite composite nanoparticles, processed by combining reverse micelle and chemical hydrolysis, were successfully dispersed in a cellulose triacetate polymeric membrane with consequent formation of a hybrid polymer nanocomposites structure. Photocatalytic titania shell provides photocatalytic and anti-microbial activity and a magnetic ferrite core, needed to help the removal of particle from the sprayed surface using small magnetic field. This polymeric membrane consisting of composite nanoparticles acts as a filter for water purification characterized by metal cations trapping and antimicrobial activity. Titania contributes to antimicrobial activity while nickel ferrite facilitates removal of the membrane with the help of small magnetic field. The performance of the hybrid structure and the factors that influence its performance are discussed.