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Confinement pyrolysis boosting metal organic frameworks to N-doped hierarchical carbon for non-radical dominated advanced oxidation processes

Abstract

Development of metal organic frameworks (MOFs) derived carbon materials toward advanced oxidation processes (AOPs) is essential for environment-friendly catalysts. In this work, a confinement pyrolysis strategy to prepare N-doped hierarchical carbon (NDHC) catalysts for non-radical advanced oxidation processes is proposed. After simply pyrolyzing phenolic resin (PR) coated zeolite imidazole frames (ZIFs) particles, NDHC with favorable structural and compositional properties is obtained. To present the catalytic performance of resultant NDHC, bisphenol A (BPA) is selected as the targeted contaminant. The results show that 98% of BPA (20 ppm) was removed by NDHC in 5 min, which is superior to many other peroxymonosulfate (PMS) catalysts. Based on electron paramagnetic resonance (EPR) analysis and scavenger experiments, singlet oxygen-dominated non-radical mechanism is confirmed in the degradation process. In addition, the influencing factors including solution pH, catalyst/PMS dosage, BPA concentration, reaction temperature, anion/organic matter are also investigated. This confinement pyrolysis strategy endows MOFs derived carbon materials wide application prospects in environmental remediation.

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Publication details

The article was received on 18 Mar 2019, accepted on 09 Apr 2019 and first published on 09 Apr 2019


Article type: Paper
DOI: 10.1039/C9TA02931A
Citation: J. Mater. Chem. A, 2019, Accepted Manuscript

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    Confinement pyrolysis boosting metal organic frameworks to N-doped hierarchical carbon for non-radical dominated advanced oxidation processes

    M. Zhang, R. Luo, C. Wang, W. Zhang, X. Yan, X. Sun, L. Wang and J. Li, J. Mater. Chem. A, 2019, Accepted Manuscript , DOI: 10.1039/C9TA02931A

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