Abstract:
Hydrophilic of polyvinylidene fluoride (PVDF) hollow fiber membrane was enhanced through pulse inductively couple plasma (PICP) induced poly(acrylic acid) (PAA) polymerization followed by titanium dioxide nanoparticle (TiO₂-NPs) and zinc oxide nanoparticles (ZnO-NPs) coated. The morphology, chemical composition and hydrophilicity of modified membranes were characterizaed by SEM, EDS, and water contact angle. The analysis of SEM and EDS were found. The TiO₂-NPs and the mix solution of TiO₂-NPs and ZnO-NPs were successfully coated on membrane surface, but ZnO-NPs were rarely coated. As a result, the water contact angle of the membrane was coated with TiO₂-NPs was less than that of the membrane was coated with ZnO-NPs. The mixed solutions of TiO₂-NPs and ZnO-NPs, which were reduced from the original membrane was 77.9° to 74.1°. Also, when testing the water permeability, the membrane was coated with TiO₂-NPs and ZnO-NPs. The highest water permeability was 23.18 L/m²·min. The treated wastewater with Reactive Red 239 at a concentration of 100 mg/L and compared with the three pH values; 2, 4 and 6. The results found that the membrane was coated with TiO₂-NPs, ZnO-NPs, and the mix solution of TiO₂- NPs and ZnO-NPs did not found significantly changed.
Description:
In Partial Fulfillment for the Degree of Bachelor of Science Department of Environmental Science, Faculty of Science, Chulalongkorn University Academic Year 2020
