Kim, Jung Gyu Ku, Jinsuk Jung, Jiyoon Park, Young Sang Choi, Gwan Hyun Hwang, Seung Sang Lee, Jung-Hyun Lee, Albert S. 2024-04-24T08:01:45Z 2024-04-24T08:01:45Z 2024-03-13 2024-01 0959-6526 https://pubs.kist.re.kr/handle/201004/149721 This study presents the design, characterization, and application of a novel multifunctional membrane specifically developed for an electrochemical system similar to electrodialysis, with the objective of removing lowconcentration copper ions from semiconductor wastewater. The membranes were fabricated using the porefilling method, where porous polytetrafluoroethylene (PTFE) substrates were impregnated with monomer blend solutions containing vinyl phosphonic acid (VPA) and crosslinking agents, such as polyethyleneglycol dimethacrylate (PEGDMA), acrylated thiourea (ATU), and acrylated tannic acid (ATA), with the ladder two synthesized crosslinkers serving roles as sorptive functionality. These pore-filling membranes exhibited excellent mechanical and dimensional stability, rendering them suitable for application in the electrochemical metal ion sorption system. To evaluate the performance of the fabricated membrane, several key parameters were assessed, including ion exchange capacity (IEC), ionic conductivity (similar to 110.6 mS/cm), and excellent reusability. Batch-type sorption experiments were conducted to investigate the sorption performance at pH 5 and pH 7, and as a result of applying the membranes to the electrochemical sorption removal system, the membranes demonstrated remarkable efficacy, reducing the copper concentration from 1 ppm to 0.01 ppm. Finally, we confirmed the membrane's ability to remove less than 0.01 ppm of copper even in industrial semiconductor wastewater, validating its practical applicability. English Elsevier BV Ion-exchangeable and sorptive reinforced membranes for efficient electrochemical removal of heavy metal ions in wastewater Article 10.1016/j.jclepro.2024.140779 1 Journal of Cleaner Production, v.438 Journal of Cleaner Production 438 N scie scopus 001172856400001 2-s2.0-85183207235 Green & Sustainable Science & Technology Engineering, Environmental Environmental Sciences Science & Technology - Other Topics Engineering Environmental Sciences & Ecology Article PHOSPHORIC-ACID RAPID REMOVAL ELECTRODIALYSIS RESIN DIVALENT STYRENE URANIUM CD(II) PB(II) Sorptive membrane Heavy metal removal Pore-filling Electrochemical metal ion sorption Ion exchange membrane