Publicação
Preparation of cobalt based organic metal framework ZIF-67 catalyst for activating PMS and its catalytic system for rapid degradation of various high concentration dyes
| datacite.subject.fos | Engenharia e Tecnologia | |
| datacite.subject.sdg | 09:Indústria, Inovação e Infraestruturas | |
| dc.contributor.author | Cai, Yangyi | |
| dc.contributor.author | Liu, Xiaocan | |
| dc.contributor.author | Yang, Weiye | |
| dc.contributor.author | Peng, Hongyan | |
| dc.contributor.author | Meng, Lijian | |
| dc.contributor.author | Zhao, Shihua | |
| dc.date.accessioned | 2026-01-20T11:41:22Z | |
| dc.date.available | 2026-01-20T11:41:22Z | |
| dc.date.issued | 2025 | |
| dc.description.abstract | Persistent organic pollutants pose significant long-term risks to environmental and human health due to their carcinogenic, mutagenic, and teratogenic properties. This study focuses on the efficient activation of peroxymonosulfate (PMS) through the rational design of a cobalt-based metal–organic framework (ZIF-67) catalyst, enabling rapid degradation of high-concentration dye pollutants. By optimizing the molar ratio of 2-methylimidazole (2-MeIM) to Co(NO3)2·6H2O and employing a hydrothermal synthesis method, we fabricated ZIF-67 (4 : 1) with high crystallinity, large specific surface area (1656.68 m2 g−1), and stable degradation performance. The ZIF-67 (4 : 1)/PMS system achieved complete degradation of 20 mg L−1 and 100 mg per L Rhodamine B (RhB) within 60 seconds and 6 minutes, respectively, surpassing recent reported efficiencies. The system also maintained high activity over a broad pH range (3–9). Radical quenching experiments and electron paramagnetic resonance (EPR) analysis identified sulfate radicals (˙SO4−4) and singlet oxygen (1O2) as the dominant reactive species. Furthermore, the catalyst exhibited excellent recyclability with no significant loss in activity after five consecutive cycles. This work provides a facile and scalable strategy for preparing highly active cobalt-based catalysts, demonstrating great potential for practical applications in industrial wastewater treatment and environmental remediation. | eng |
| dc.identifier.citation | Cai, Y., Liu, X., Yang, W., Peng, H., Meng, L., & Zhao, S. (2025). Preparation of cobalt based metal organic framework ZIF-67 catalyst for activating peroxymonosulfate and its catalytic system for rapid degradation of Rhodamine B and other dyes at high concentrations. RSC Adv., 15, pp. 49875-49888. https://doi.org/10.1039/D5RA08184J | |
| dc.identifier.doi | https://doi.org/10.1039/d5ra08184j | |
| dc.identifier.uri | http://hdl.handle.net/10400.22/31572 | |
| dc.language.iso | eng | |
| dc.peerreviewed | yes | |
| dc.publisher | The Royal Society of Chemistry | |
| dc.relation.hasversion | https://pubs.rsc.org/en/content/articlelanding/2025/ra/d5ra08184j | |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
| dc.title | Preparation of cobalt based organic metal framework ZIF-67 catalyst for activating PMS and its catalytic system for rapid degradation of various high concentration dyes | eng |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.endPage | 49888 | |
| oaire.citation.startPage | 49875 | |
| oaire.citation.title | RSC Advances | |
| oaire.citation.volume | 15 | |
| oaire.version | http://purl.org/coar/version/c_970fb48d4fbd8a85 |