Electrospun PVA/Co₃O₄ Nanofibers: A Sustainable Catalyst for Peroxymonosulfate-Mediated Degradation of Tetracycline.

ABSTRACT: This study develops a poly-(vinyl alcohol) (PVA) nanofiber incorporated with cobalt oxide (Co₃O₄) for catalytic degradation of antibiotics using peroxymonosulfate (PMS) to generate sulfate radical (SO₄ ^•-) (E° = 2.5-3.1 V vs NHE). 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^-1) and citric acid (15% w/w polymer). Thermal cross-linking at 160 °C for 2 h enhanced the material's aqueous stability and mechanical properties. Scanning electron microscopy revealed uniform fibers (627-645 nm diameter), while X-ray diffrac

SUBMITTER: Kirchhoff FG 

PROVIDER: S-EPMC12242669 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature