{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/125522"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/125522","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Harnessing redox electro-sorbents and reactive separations for efficient PFAS remediation in water systems","abstract":"Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-02-04 without embargo terms","abstract_html":"Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-02-04 without embargo terms","abstract_has_math":false,"creators":["Baldaguez Medina, Paola A."],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Chemical Engineering","degree_department":null,"school":null,"contributors":["Su, Xiao","Yang, Hong","Sankaran, R. Mohan","Kong, Hyun Joon"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2024,"date_issued":"2024-06-28","date_published":"2024-06-28","updated_at":"2026-07-22T22:25:02Z","subjects":["Pfas","Electrosorption","Redox-polymers"],"languages":["en","eng"],"rights":["Copyright 2024 Paola Baldaguez Medina"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/2142/125522","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Su, Xiao","Yang, Hong","Sankaran, R. Mohan","Kong, Hyun Joon"]},{"key":"dc:creator","label":"Author","values":["Baldaguez Medina, Paola A."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2024-06-28","2024-08"]},{"key":"dc:type","label":"Dc Type","values":["text","Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Chemical Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Pfas","Electrosorption","Redox-polymers"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en","eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2024 Paola Baldaguez Medina"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://hdl.handle.net/2142/125522"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-02-04 without embargo terms","The student, Paola Baldaguez Medina, accepted the attached license on 2024-06-15 at 08:21.","The student, Paola Baldaguez Medina, submitted this Dissertation for approval on 2024-06-15 at 08:37.","This Dissertation was approved for publication on 2024-06-28 at 08:57.","DSpace SAF Submission Ingestion Package generated from Vireo submission #20840 on 2025-02-04 at 21:03:29","Per- and polyfluoroalkyl substances (PFAS) are persistent environmental contaminants with profound health and ecological implications. Redox-polymer materials have emerged as promising solutions for PFAS remediation, offering tailored electrochemical approaches to tackle the challenges posed by these persistent micropollutants. In this study, we present innovative strategies utilizing redox-polymer materials for efficient PFAS removal and destruction. Our investigation begins with the selective electrochemical separation and mineralization of PFAS, particularly GenX, using a redox-copolymer composed of poly(4-methacryloyloxy-2,2,6,6-tetramethylpiperidin-1-oxyl-co-4-methacryloyloxy-2,2,6,6-tetramethylpiperidine) (PTMA-co-PTMPMA). The copolymer's amine functional groups enhance affinity towards anionic PFAS, while redox-active nitroxide radicals enable controlled adsorption and desorption under electrochemical conditions. Optimized electrochemical parameters yield enhanced kinetics and substantial uptake capacities (>475 mg/g). Further exploration focuses on evaluating PTMA-co-PTMPMA for targeted electrochemical removal of PFAS contaminants, emphasizing regeneration capabilities and transitioning to continuous flow cell configurations. The study elucidates electrochemical mechanisms governing PFAS capture and release across diverse pH and water matrices, showcasing the copolymer's efficacy under varying environmental conditions. Additionally, we investigate redox-active metallopolymers to enhance electrochemical reversibility and electrosorption uptake in PFAS remediation. Synthesized metallopolymers with tailored redox potentials demonstrate superior PFAS capture and regeneration efficiencies, highlighting structure-property relationships impacting electron density and contaminant affinity. Innovative PFAS remediation techniques are then showcased, including up-concentration and utilization of PTMA-containing polymers as adsorbents. Integration of advanced oxidative processes with boron-doped diamond (BDD) electrodes achieves complete defluorination post-up-concentration, demonstrating energy-efficient solutions for comprehensive PFAS treatment. Through these investigations, this thesis underscores the efficacy and versatility of redox-polymer materials in addressing complex PFAS contamination scenarios. These findings contribute significant insights towards advancing sustainable and efficient PFAS remediation strategies crucial for safeguarding public health and environmental integrity."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Harnessing redox electro-sorbents and reactive separations for efficient PFAS remediation in water systems"]}]}],"canonical_facts":{"dc:contributor":["Su, Xiao","Yang, Hong","Sankaran, R. Mohan","Kong, Hyun Joon"],"dc:creator":["Baldaguez Medina, Paola A."],"dc:date":["2024-06-28","2024-08"],"dc:description":["Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-02-04 without embargo terms","The student, Paola Baldaguez Medina, accepted the attached license on 2024-06-15 at 08:21.","The student, Paola Baldaguez Medina, submitted this Dissertation for approval on 2024-06-15 at 08:37.","This Dissertation was approved for publication on 2024-06-28 at 08:57.","DSpace SAF Submission Ingestion Package generated from Vireo submission #20840 on 2025-02-04 at 21:03:29","Per- and polyfluoroalkyl substances (PFAS) are persistent environmental contaminants with profound health and ecological implications. Redox-polymer materials have emerged as promising solutions for PFAS remediation, offering tailored electrochemical approaches to tackle the challenges posed by these persistent micropollutants. In this study, we present innovative strategies utilizing redox-polymer materials for efficient PFAS removal and destruction. Our investigation begins with the selective electrochemical separation and mineralization of PFAS, particularly GenX, using a redox-copolymer composed of poly(4-methacryloyloxy-2,2,6,6-tetramethylpiperidin-1-oxyl-co-4-methacryloyloxy-2,2,6,6-tetramethylpiperidine) (PTMA-co-PTMPMA). The copolymer's amine functional groups enhance affinity towards anionic PFAS, while redox-active nitroxide radicals enable controlled adsorption and desorption under electrochemical conditions. Optimized electrochemical parameters yield enhanced kinetics and substantial uptake capacities (>475 mg/g). Further exploration focuses on evaluating PTMA-co-PTMPMA for targeted electrochemical removal of PFAS contaminants, emphasizing regeneration capabilities and transitioning to continuous flow cell configurations. The study elucidates electrochemical mechanisms governing PFAS capture and release across diverse pH and water matrices, showcasing the copolymer's efficacy under varying environmental conditions. Additionally, we investigate redox-active metallopolymers to enhance electrochemical reversibility and electrosorption uptake in PFAS remediation. Synthesized metallopolymers with tailored redox potentials demonstrate superior PFAS capture and regeneration efficiencies, highlighting structure-property relationships impacting electron density and contaminant affinity. Innovative PFAS remediation techniques are then showcased, including up-concentration and utilization of PTMA-containing polymers as adsorbents. Integration of advanced oxidative processes with boron-doped diamond (BDD) electrodes achieves complete defluorination post-up-concentration, demonstrating energy-efficient solutions for comprehensive PFAS treatment. Through these investigations, this thesis underscores the efficacy and versatility of redox-polymer materials in addressing complex PFAS contamination scenarios. These findings contribute significant insights towards advancing sustainable and efficient PFAS remediation strategies crucial for safeguarding public health and environmental integrity."],"dc:format":["application/pdf"],"dc:identifier":["https://hdl.handle.net/2142/125522"],"dc:language":["en","eng"],"dc:rights":["Copyright 2024 Paola Baldaguez Medina"],"dc:subject":["Pfas","Electrosorption","Redox-polymers"],"dc:title":["Harnessing redox electro-sorbents and reactive separations for efficient PFAS remediation in water systems"],"dc:type":["text","Thesis"],"thesis:degree_discipline":["Chemical Engineering"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:25:02Z"}