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These radicals efficiently degrade tetracycline through selective oxidation, offering advantages over conventional hydroxyl radical-based processes. The nanofiber fabrication involved electrospinning of PVA (8% w\/v) containing cobalt oxide suspension (5 g L\u20131) and citric acid (15% w\/w polymer). Thermal cross-linking at 160 \u00b0C for 2 h enhanced the material\u2019s aqueous stability and mechanical properties. Scanning electron microscopy revealed uniform fibers (627\u2013645 nm diameter), while X-ray diffraction, thermal analyses, and spectroscopy confirmed increased crystallinity in PVA\/Co3O4 composites. Optimization studies through factorial design identified pH and PMS concentration as key parameters, achieving 60% tetracycline degradation within 60 min. The successful integration of Co3O4 into biodegradable PVA nanofibers presents a sustainable, cost-effective approach for water treatment applications, particularly targeting emerging pharmaceutical contaminants.<\/jats:p>","DOI":"10.1021\/acsomega.5c01013","type":"journal-article","created":{"date-parts":[[2025,6,25]],"date-time":"2025-06-25T03:54:06Z","timestamp":1750823646000},"page":"27883-27893","source":"Crossref","is-referenced-by-count":7,"title":["Electrospun PVA\/Co3O4 Nanofibers:\nA Sustainable Catalyst for Peroxymonosulfate-Mediated Degradation\nof Tetracycline"],"prefix":"10.1021","volume":"10","author":[{"given":"Felipe G.","family":"Kirchhoff","sequence":"first","affiliation":[{"name":"Universidade Estadual do Oeste do Parana\u0301 (UNIOESTE) , Rua da Faculdade 645 , , ,","place":["Toledo, Parana\u0301, Brazil, 85903-000"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gabriel N.","family":"Fraga","sequence":"additional","affiliation":[{"name":"Universidade Estadual do Oeste do Parana\u0301 (UNIOESTE) , Rua da Faculdade 645 , , ,","place":["Toledo, Parana\u0301, Brazil, 85903-000"]},{"name":"Universidade Estadual de Maringa\u0301 (UEM) , , Av. Colombo, 5790\ue5f8Zona 7 , , ,","place":["Maringa\u0301, Parana\u0301, Brazil, 87020-900"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Reinaldo A.","family":"Bariccatti","sequence":"additional","affiliation":[{"name":"Universidade Estadual do Oeste do Parana\u0301 (UNIOESTE) , Rua da Faculdade 645 , , ,","place":["Toledo, Parana\u0301, Brazil, 85903-000"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7870-097X","authenticated-orcid":true,"given":"Douglas C.","family":"Dragunski","sequence":"additional","affiliation":[{"name":"Universidade Estadual do Oeste do Parana\u0301 (UNIOESTE) , Rua da Faculdade 645 , , ,","place":["Toledo, Parana\u0301, Brazil, 85903-000"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4500-1173","authenticated-orcid":true,"given":"Guilherme G.","family":"Bessegato","sequence":"additional","affiliation":[{"name":"Universidade Tecnolo\u0301gica Federal do Parana\u0301 (UTFPR) , Dois Vizinhos Campus, Estrada para Boa Esperanc\u0327a, km 04 , , ,","place":["Dois Vizinhos, Parana\u0301, Brazil, 85660-000"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2025,6,25]]},"reference":[{"issue":"December 2021","key":"2026081812081015800_cit1","doi-asserted-by":"publisher","first-page":"112609","DOI":"10.1016\/j.envres.2021.112609","article-title":"Emerging\nContaminants of High Concern for the Environment: Current Trends and\nFuture Research","volume":"207","author":"Khan","year":"2022","journal-title":"Environ. 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