Synthesis of a Free-Standing Ternary WO3/CNT/ZnO–Chitosan Composite Photocatalytic Membrane for the Mitigation of Protein Fouling in Membranes
Wei Tze Chong, Sze Mun Lam, Yit Thai Ong, Trong-Ming Don
TL;DR
A new composite membrane was developed to reduce protein fouling in filtration processes using a photocatalytic material and chitosan.
Contribution
A free-standing ternary WO3/CNT/ZnO–chitosan composite membrane was fabricated to mitigate protein fouling in membranes.
Findings
The composite membrane achieved 86% efficiency in degrading bovine serum albumin under sunlight.
Higher photocatalyst loading increased BSA rejection but reduced permeation flux due to lower porosity.
The membrane showed 82% fouling resistance and 18% irreversible fouling, indicating good antifouling properties.
Abstract
The application of membrane filtration, particularly micro- and ultra-filtration, in food and pharmaceutical industries often faces the issue of protein fouling. In this study, we aimed to fabricate a free-standing ternary tungsten trioxide/carbon nanotube/zinc oxide (WO3/CNT/ZnO)–chitosan composite photocatalytic membrane via wet processing and infiltration techniques to address the fouling issue. Infiltration with low molecular weight chitosan was found to enhance the mechanical stability of the ternary composite photocatalytic membrane. The ternary composite photocatalytic membrane with a 0.16 g ternary photocatalyst load demonstrated 86% efficiency in the degradation of bovine serum albumin (BSA) under sunlight irradiation for 120 min. A reduction in permeation flux accompanied by an increase in BSA rejection was observed as the loading of the ternary photocatalyst in the ternary…
Genes, proteins, chemicals, diseases, species, mutations and cell lines named across the full text — each resolved to its canonical identifier and authoritative record.
Click any figure to enlarge with its caption.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsMembrane Separation Technologies · Electrochemical sensors and biosensors · Advanced Nanomaterials in Catalysis