ArticleScientific reports2025
Optimization of PES-based Hollow fiber membranes incorporating MgO-modified activated carbon via response surface methodology for enhanced pure water permeability.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
This research aims to optimize the fabrication of polyethersulfone (PES)-based composite hollow fiber membranes via phase inversion. For this purpose, MgO-modified activated carbon (AC) particles were synthesized and incorporated into the polymer matrix. High-resolution transmission electron microscopy (HR-TEM), scanning electron microscopy (SEM), and X-ray diffraction (XRD) were utilized to examine the morphological and chemical properties of the AC-MgO particles. To optimize the fabrication process, the effects of four key parameters: AC-MgO particle concentration (0.09-0.36 wt%), bore fluid flow rate (3.5-9.5 ml/min), dope solution flow rate (1.5-3.5 ml/min), and air gap distance (2-42 cm), were analyzed using response surface methodology (RSM) with a central composite design. The performance of the membranes was assessed in terms of pure water permeability (PWP). The results of experimental tests conducted under the optimal conditions obtained using the RSM method for particle concentration and process parameters were in close agreement with the model predictions, confirming the model's accuracy. Moreover, it was found that particle concentration and air gap distance significantly influenced membrane performance. The AC-MgO particles significantly enhanced membrane properties by reducing the water contact angle, indicating improved hydrophilicity, and promoting the formation of a more porous membrane structure.
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