Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 8, Issue 6, Pages 3168-3179Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9ta12099h
Keywords
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Funding
- National Key RAMP
- D Program of China [2019YFA0110600, 2019YFA0110601, 2016YFC1103000]
- Fundamental Research Funds for the Central Universities
- National Natural Science Foundation of China [51903178, 81971622, 51803134, 51703141, 51773127, 51603134]
- State Key Laboratory of Polymer Materials Engineering [sklpme2019-2-03]
- Sichuan Province's Science and Technology Planning Project [2016GZ0350]
- Postgraduate Course Construction Project of Sichuan University [2017KCSJ036]
- Alexander von Humboldt Fellowship
- Thousand Youth Talents Plan
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Fenton-like reactions activated by peroxymonosulfate for the efficient and environmentally friendly degradation of refractory pollutants have gained significant attention in recent years. However, the fabrication of Fenton-like catalysts with adequate activity and stability towards toxic benzene derivates is still a long-term goal. Herein, we report a novel Fenton-like 2D porous carbon catalyst with co-anchored Co-N-x sites and nanocrystalline Co by annealing core-shell bimetallic metal-organic framework (MOF)-coated graphene oxide. During carbonization, the N-ligands in the MOF provide self-pyrolyzed reducing gases, while the Co2+ salts and gradually formed nanocrystalline Co serve as the in situ catalysts for the growth of Co/Co-N-x co-doped carbon nanotubes, which avoids the use of the chemical vapor deposition process. Benefiting from the unique core-shell MOF nanostructures, the fabricated 2D hierarchical catalysts display delicate micro/mesoporous structures, conductive carbon frameworks, and abundant Co/Co-N-x/pyridinic-N active sites. These unique advantages endow the catalysts with high degradation efficiencies towards different toxic benzene-derived compounds, such as bisphenol A, phenol, biphenyl, naphthalene, and even benzene-derived macromolecules. This research not only provides Fenton-like catalysts with excellent potential for the water remediation of benzene-derived contaminants, but also takes a step toward the production of advanced metal/metal-N co-doped 2D porous carbon for diverse catalytic and energy applications.
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