Degradation of an imidazolium-based ionic liquid in water using monopersulfate catalyzed by Dahlia flower-like cobalt oxide

As the imidazolium-based ionic liquid (IL), 1-Butyl-3-methylimidazolium chloride (BMIMCl), is increasingly employed in various applications, release of BMIM cation into environment has posed serious threats on aquatic ecology. Thus, it imperative to eliminate from water, and, among techniques for eliminating BMIM, chemical oxidation most effective technique. Nevertheless, studies using SO4−-based methods degrading are still very limited; thus this study aims develop an process BMIM. monopersulfate (MPS) as a source SO4−, special cobalt (Co)-based catalyst proposed and developed here by fabricating Co3O4 unique Dahlia flower-like morphology. Such (DFCoO) not only can exhibit flower configuration, but also its floral petal components consist many filament-like nanostructures, making DFCoO possess several advantageous properties over conventional nanoparticle (NP), including higher redox activity, more reactive surface, surface area larger pore volume. shows much catalytic activity than NP activate MPS A dosage reaction temperature enhance degradation + MPS. reusable activating degrade multiple cycles. mechanism pathway elucidated identifying radical species intermediates. The findings offer useful approach developing sulfate-based BMIMCl.