Kirana, Utari Puspa and Hakami, Mohammed Wali and Chafidz, Achmad and Suhartono, Jono (2021) Characterization of PES/CNTp-TiO2 and PES/CNTp-ZnO Composite Membranes Using Solute Transport Method. In: The 3rd Faculty of Industrial Technology International Congress 2021 International Conference, 28-29 October, 2021, Bandung.

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Abstract

Membrane technology can be applied in various industrial fields. Membrane characterization play significant role in membrane application to determine suitable membrane for the demanded process. In this study, the characteristics of (polyether sulfone) PES membranes with impregnated carbon nanotubes, TiO2 and ZnO nanoparticles were investigated. The membranes were fabricated using phase inversion technique that involved Dimethylformamide (DMF) as solvent, DI water as coagulant and PES as the polymer. The resulting composite membranes were analyzed for its porosity, rejection, pore size and pore distribution where pore size and distribution was determined by solute transport method. The porosity analysis of pure PES membrane obtained was slightly higher than the PES/CNTp-TiO2 and PES/CNTp-ZnO composite membranes, which are 42.9%, 35.55%, 33.4%, respectively. However, the resulting rejection of the solute diameter and molecular weight indicated that pure PES membranes had the lowest rejection values compared to PES/CNTp-TiO2 and PES/CNTp-ZnO composite membranes. The membrane pore size distributions were among 0.1 to 50 nm where the highest probability of pore size for pure PES, PES/CNTp-TiO2, and PES/CNTp-ZnO were 5 nm, 4 nm and 3 nm, respectively. These tests show that the addition of nanoparticles may increase the rejection value and reduce the pore size of the resulting membrane.

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