Application of Polyvinyl Chloride- Halloysite Nanotubes/Uio۶۶-NH۲ Mixed Matrix Membranes in Separation of Sunflower Oil from Water

Membrane technology is known as one of the most efficient and extensive methods for oily wastewater treatment. In this research, polyvinyl chloride (PVC)-based mixed matrix membranes containing Uio۶۶-NH۲ nanoparticles and modified halloysite nanotubes (HNTs) were prepared using the phase inversion method. The synthesized membranes were characterized by field emission scanning electron microscope (FESEM), Fourier transform infrared (FTIR) and contact angle measurement analysis. Then, the effect of these nanoparticles was investigated for oil/water emulsion separation in the ultrafiltration process. To evaluate the prepared membranes, pure water flux, mean pore size, and oil separation ultrafiltration tests were performed. The results exhibited that addition of HNTs to the casting solution enhanced the pure water flux about up to ۴ folds. Overall experimental results showed that due to the uniform distribution of halloysite nanotubes in sample ۲, water contact angle decreased from ۸۱° to ۷۲°. UF results confirmed that sample ۲ had the potential of rejecting ۹۷% of sunflower oil.

کلیدواژه ها:

Ultrafiltration ، Polyvinyl chloride ، Metal-organic framework ، Halloysite nanotubes ، Sodium dodecyl sulfate ، Oil/water emulsion