High performance, low‐fouling nanocomposite membrane with TiO2 nanomaterial in polysulfone matrix for advanced water treatment

Abstract

AbstractIn the present article, nanocomposite TiO2/polysulfone membranes were prepared for advanced water treatment and removal of surfactant and dye from water were evaluated. The nanocomposite membranes demonstrated enhanced antifouling properties. Scanning electron microscopy, energy‐dispersive X‐ray spectroscopy, atomic force microscopy, and transmission electron microscopy were conducted to characterize particles and fabricated nanocomposite membranes. The antifouling characteristics of the membrane were assessed by ultrafiltration of model foulants such as sodium alginate and egg albumin and it was found that the nanocomposite membranes were less prone to fouling. Separation performance of Congo red dye and non‐ionic surfactant Triton X‐100 were evaluated and the nanocomposite membranes have shown encouraging results. With incorporation of TiO2 nanoparticles, ultimate tensile strength increased while elongation at break decreased. Decrement in pore size with incorporation of nanomaterial and change in surface characteristics were responsible for improved performance of membrane.