Fabrication of an antifoulingGO‐TiO₂/PESultrafiltration membrane

Abstract

PES ultrafiltration membrane is widely used in various fields due to its high‐filtration efficiency. However, due to its hydrophobicity, PES ultrafiltration membrane has poor antifouling performance, this reduced service life and increased industrial cost. Blending is a common method in ultrafiltration membrane hydrophilic modification. Adding a small amount of inorganic nanoparticles into the polymer membrane can improve the properties of the polymer membrane. However, nanoparticles are not uniformly dispersed in polymer membrane, which hindering the modification ability of nanoparticles to ultrafiltration membrane. In this paper, GO‐TiO2 materials were prepared by hydrothermal method, and GO‐TiO2/PES blended ultrafiltration membranes were fabricated by nonsolvent induced phase separation (NIPs). The experimental results show that GO‐TiO2 disperse uniformly in GO‐TiO2/PES ultrafiltration membrane, which greatly improved the antifouling performance of the membrane. When the addition amount of GO‐TiO2 is 0.6%, the water flux of membrane reaches 194.5 (L m−2 h−1), and the rejection rate of BSA reaches 89.4%. After three pollutions‐cycles, the flux recovery rate of the membrane is 90.2%.

Photodegradation of imidacloprid insecticide using polyethersulfone membranes modified with iron doped cerium oxide

“…The improvement in hydrophilicity of the membranes was attributed due to the incorporation of hydrophilic Fe‐CeO 2 photocatalyst. The hydroxyl groups present on the membrane surface due to CeO 2 has greater affinity with the water molecules and because of their interaction the CA of the membranes reduces upon modification with the hydrophilic materials 60 …”

“…The hydroxyl groups present on the membrane surface due to CeO 2 has greater affinity with the water molecules and because of their interaction the CA of the membranes reduces upon modification with the hydrophilic materials. 60 Porosity measurements were done for the prepared membranes and are presented in Figure 2(b). Membrane porosity increased with increasing Fe-CeO 2 nanomaterial content from 60.1% for the pristine membranes (M0) to 70.1% (M1), 89.2 (M2) up to 96.5% (M3) as the loading of Fe-CeO 2 increased.…”

A Mini Review on Treatment of Wastewater with Membrane Technology

“…A certain polymer is selected as a membrane material based on a number of extremely precise characteristics, including molecular weight, chain flexibility, chain interaction, etc. [42,43]. The structure of ultra-filtration membrane is a symmetric or symmetric.…”