期刊
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
卷 681, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.colsurfa.2023.132721
关键词
RTIPS method; BiOCl/PVP nanomaterials; Organic membrane fouling; Photocatalytic; Self-cleaning mechanism
Membrane separation technology is widely used in wastewater treatment due to its cost-effectiveness and productivity. However, organic membrane fouling caused by humic acid is a major barrier to its further development. This study successfully addressed this issue through the production of composite materials and self-cleaning membranes, providing beneficial strategies and solutions for membrane contamination problems.
Due to its cost-effectiveness and productivity, membrane separation technology is widely utilized in the treatment of wastewater, but a major barrier to its further development is organic membrane fouling, which is mainly caused by humic acid (HA). To address this issue, BiOCl/polyvinylpyrrolidone (PVP) composites were produced using the ambient stirring method, while polyethersulfone (PES)/BiOCl/PVP self-cleaning membranes were manufactured using the reverse thermally induced phase separation (RTIPS) method. Considering the pure water flux of 3566.67 L m- 2 h-1 and HA retention of 87.24 %, the 0.3 wt% PES/BiOCl/PVP (PB2-65) composite membrane had excellent permeability. The flux recovery of the composite membrane was 76.19 % after three photocatalytic cycles, and cycling experiments proved that the PB2-65 self-cleaning mechanism was stable. The performance of PB2-65 was not compromised when the use cycle was noticeably prolonged under light irradiation. The membranes in this study offer beneficial strategies and solutions for membrane contamination issues.
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