Synergistic Effect of Chitosan on the Antibacterial Properties of Polyvinylidene Fluoride (PVDF) Membranes
DOI:
https://doi.org/10.36877/aafrj.a0000571Abstract
Phase inversion is a mixing process where an initially homogeneous polymer solution is controlled to transform from a liquid to a solid phase. This approach has been widely employed in various sectors, including wastewater treatment. However, the use of membrane technology in high-concentration wastewater can lead to pore wetting and clogging due to the accumulation of large foreign particles, resulting in bacterial growth and pollution. To address this issue, the membrane must have a low value of water contact angle, a high percentage of porosity, and must have a great antibacterial property. In this study, it is observed that the addition of chitosan to the polyvinylidene fluoride (PVDF) matrix has improved the water resistance of the membrane, resulting in a decreased value of contact angle. Nevertheless, the 2.0 g chitosan/PVDF membrane is more practical to be used in the wastewater treatment industry compared to the pure PVDF membrane. This is because the chitosan/PVDF membrane has the highest percentage of porosity and the lowest value of water contact angle, which causes the membrane to be less prone to wetting and acts as an excellent barrier against bacterial contamination compared to the other membranes.
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