A Novel three dimensional ZC-MOF/CoFe2O4-MXene Hybrid System for Peroxymonosulfate Activation: Dominant Role of Radical and Nonradical Pathways in Organic Pollutant Elimination

Aml H. S. Habib, Chemistry Department, Faculty of Science (Girls), Al-Azhar University, Cairo, Egypt.
Salwa A. H. Albohy, Chemistry Department, Faculty of Science (Girls), Al-Azhar University, Cairo, Egypt.
Carmen M. Sharaby, Chemistry Department, Faculty of Science (Girls), Al-Azhar University, Cairo, Egypt.
Abdelrahman M. Rabie, Petrochemicals department, Egyptian Petroleum Research Institute (EPRI), Nasr City 11727, Cairo, EgyptFollow

Article Type

Research Paper

Highlights

A 3D ZC-MOF/CF-MXene catalyst was fabricated and applied for PMS activation.
The system achieved rapid degradation of various organic contaminants.
Radical/nonradical ROS (SO₄•⁻, 1O2) participated in the oxidation mechanism.
Singlet oxygen (1O2) was confirmed as the primary reactive pathway.
The catalyst maintained nearly full activity (~99%) after five reuse cycles.

Abstract

Advanced oxidation processes constructed on peroxymonosulfate (PMS) activation have developed as an efficient approach for oxidizing organic pollutants from water. In this current work, a ZC-MOF/CF-MXene composite was synthesized to activate PMS for wastewater treatment. The effects of operational parameters including PMS concentration, catalyst loading, pH, common anions, and catalyst reusability were systematically examined. Under optimized conditions, the ZC-MOF/CF-MXene/PMS system attained 100% oxidation of 20 ppm methylene blue (MB) within 40 min. Comprehensive structural and surface characterizations established the formation of the composite and provided insight into its catalytic behavior. Quenching experiments demonstrated the involvement of singlet oxygen (1O2) and sulfate radicals, with 1O2 recognized as the dominant pathway for pollutant oxidation. Overall, this work introduces a robust and reusable catalyst with strong potential for start PMS activation and the efficient oxidation of organic pollutants in water remediation.

Keywords

Advanced oxidation process (AOP); ZC-MOF/CF-MXene Catalyst; singlet oxygen (1O2); Peroxymonosulfate (PMS); Organic pollutant

Recommended Citation

Habib, Aml H. S.; Albohy, Salwa A. H.; Sharaby, Carmen M.; and Rabie, Abdelrahman M. (2026) "A Novel three dimensional ZC-MOF/CoFe2O4-MXene Hybrid System for Peroxymonosulfate Activation: Dominant Role of Radical and Nonradical Pathways in Organic Pollutant Elimination," Egyptian Journal of Petroleum: Vol. 35 : Iss. 1 , Article 6.
Available at: https://doi.org/10.62593/2090-2468.1098

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