Abstract
The presence of recalcitrant compounds in aquatic systems, such as carbamazepine (CBZ), has intensified due to the wastewater discharge increase. This study aimed to evaluate the PES/mesoparticles-based MMM transport properties and their CBZ adsorption capacities in aqueous solutions with different physicochemical characteristics using a statistical design method. MMMs were synthesized via the phase inversion method using polyethersulfone as a polymeric matrix and mesoparticles as filler materials (MCM-41, NH2-MCM-41, or SH-MCM-41). The MMMs were characterized by ATR-FTIR, DSC, SEM-EDS, TGA, and XRD. CBZ quantification was performed by ultra-performance liquid chromatography. The preliminary adsorption study showed that PES/SH-MCM-41-based MMMs present the highest potential for CBZ adsorption. The multivariate design results indicate that three independent variables (contact time, initial CBZ concentration, and the amount of SH-MCM-41 incorporated in MMM) significantly influence the MMM adsorption capacity, while pH does not affect it. Water permeability tests in MMMs showed a correlation between the H2O permeability and the porosity of the synthesized membranes. PES/SH-MCM-41-based MMM showed high porosity and good ability to remove CBZ from water, regardless of the pH of the aqueous solutions.
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