Sulfonated Polyethersulfone Membranes for Brackish Water Desalination: Fabrication, Characterization, and Electrodialysis Performance Evaluation
Year: 2024
Type: article
Abstract: The widespread application of electrodialysis is constrained by the high cost of ion exchange membranes, necessitating the development of affordable alternatives. This study focuses on the fabrication and performance evaluation of cation exchange membranes made from polyethersulfone (PES) and sulfonated polyethersulfone (sPES). Membranes were synthesized through phase inversion with varying solvent evaporation times, using N-Methyl-2-Pyrrolidone (NMP) as the solvent. The structural and functional modifications were confirmed using FTIR, XPS, and AFM techniques. Performance tests identified optimal electrodialysis results for PES membranes with a 3 h solvent evaporation time and for sPES membranes with a 1 h evaporation time. Under varying operational conditions, including applied voltage, flow rates, and feed solutions, sPES membranes demonstrated superior performance, underscoring their potential for cost-effective brackish water desalination applications.
Source: Applied Sciences
DOI: 10.3390/app15010216
Authors: Li Chen, Eva M. Deemer, XiuJun Li, W. Shane Walker
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,728
Awards: NSF Nanosystems Engineering Research Center for Nantechnology Enabled Water Treatment Systems (NEWT), MRI: Acquisition of a Next-Generation XPS for Research and Education in the Southwest Borderlands, Rapid Point-of-care Detection of Ovarian Cancer Biomarkers Using a Common Thermometer for Low-Resource Settings, PFI-TT: Development of Point-of-Care Biochips for the Rapid and Sensitive Detection of Multiple Respiratory Pathogens, G7075089946, Point-of-care microdevices for simultaneous detection of multiple pertussis-like respiratory diseases from Bordetella species, G8139328803
OpenAlex ID: W4405943871