Jeong, Eunhoo Byun, Jeehye Bayarkhuu, Bolormaa Hong, Seok Won 2024-01-19T15:30:33Z 2024-01-19T15:30:33Z 2021-09-02 2021-03 0926-3373 https://pubs.kist.re.kr/handle/201004/117372 The photocatalytic membrane (PM) is a promising platform to impart membranes with an anti-biofouling property. However, the fabrication of effective PMs remains challenging because the physical loading of photoactive materials on the membrane can cause pore blocking and layer delamination due to repetitive operations. In this study, we demonstrate a chemical grafting of conjugated polyelectrolytes (CPEs) on a PVDF membrane surface to generate visible-light-active PMs with high stability. Using chemical tethering of CPE on the membrane followed by anion exchange, the surficial hydrophilicity of PM is improved significantly without compromising its porosity and water permeability. The hydrophilic PM exhibits excellent performance for photo-degradation of organic dyes, photo-reduction of Cr(VI), and photocatalytic inactivation of mixed-culture biofilm under visible light irradiation. The anti-biofouling property enables > 97 % flux recovery in repeated filtration cycles through the visible light treatment, even after it is fouled with a super-saturated bacterial feed solution (10(9) CFU/mL). English ELSEVIER Hydrophilic photocatalytic membrane via grafting conjugated polyelectrolyte for visible-light-driven biofouling control Article 10.1016/j.apcatb.2020.119587 1 APPLIED CATALYSIS B-ENVIRONMENTAL, v.282 APPLIED CATALYSIS B-ENVIRONMENTAL 282 N scie scopus 000591696500001 2-s2.0-85091941568 Chemistry, Physical Engineering, Environmental Engineering, Chemical Chemistry Engineering Article ULTRAFILTRATION MEMBRANES PVDF MEMBRANES SURFACE MODIFICATION CELLULOSE-ACETATE POLYMER GRAPHENE NANOPARTICLES DEGRADATION INTEGRATION COPOLYMERS Photocatalytic membrane Biofouling Conjugated polyelectrolyte Hydrophilicity Photo-degradation