Tailoring the Effects of Titanium Dioxide (TiO2) and Polyvinyl Alcohol (PVA) in the Separation and Antifouling Performance of Thin-Film Composite Polyvinylidene Fluoride (PVDF) Membrane

Membranes

Shobha Muthukumaran¹  Shruti Sakarkar²  Veeriah Jegatheesan² 

[1] College of Engineering and Science, Victoria University, Melbourne, VIC 8001, Australia;School of Engineering, RMIT University, Melbourne, VIC 3000, Australia;

关键词: dip-coating;    dyes;    membrane;    nanocomposite;    polyvinylidene fluoride;    titanium dioxide;   

DOI  :  10.3390/membranes11040241

来源: DOAJ

【 摘 要 】

In this study, thin-film composite (TFC) polyvinylidene fluoride (PVDF) membranes were synthesized by coating with titanium dioxide (TiO₂)/polyvinyl alcohol (PVA) solution by a dip coating method and cross-linked with glutaraldehyde. Glutaraldehyde (GA) acted as a cross-linking agent to improve the thermal and chemical stability of the thin film coating. The incorporation of TiO₂ in the film enhanced the hydrophilicity of the membrane and the rejection of dyes during filtration. The layer of TiO₂ nanoparticles on the PVDF membranes have mitigated the fouling effects compared to the plain PVDF membrane. The photocatalytic performance was studied at different TiO₂ loading for the photodegradation of dyes (reactive blue (RB) and methyl orange (MO)). The results indicated that the thin film coating of TiO₂/PVA enhanced photocatalytic performance and showed good reusability under UV irradiation. This study showed that nearly 78% MO and 47% RB were removed using the TFC membrane. This work provides a new vision in the fabrication of TFC polymeric membranes as an efficient wastewater treatment tool.

【 授权许可】

Unknown