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Nonwoven Bio-Based Membranes for Removal of Micropollutants from Aqueous Water
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Researchers developed bio-based electrospun membranes from polylactic acid and polyhydroxybutyrate, with and without chitosan and activated carbon coatings, for removing micropollutants from water. The membranes achieved effective removal of target contaminants and represent a more sustainable alternative to conventional synthetic polymer filters.
The aim of this paper is to obtain two types of bio-based membranes by electrospinning process: one based on polylactic acid (PLA), and PLA/polyhydroxybutyrate (PHB), and the second by coating the PLA/PHB membrane with chitosan (CS) and CS/activated coal (AC), respectively for removal of micropollutants from aqueous water. The designed bio-based electrospun membranes were analyzed through scanning electron microscopy (SEM), attenuated total reflectance (ATR) - Fourier transform infrared spectroscopy (FT-IR), differential scanning calorimetry (DSC), the removal of solid suspension and Pb (II) from aqueous water. The quality of filtrates was evaluated by physical-chemical methods, while the retaining of Pb (II) from wastewaters was reported.
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