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A series of zirconium polyphenolate-decorated-(metallo)porphyrin metal–organic frameworks (MOFs), ZrPP-n (n = 1, 2), featuring infinite ZrIV-oxo chains linked via polyphenolate groups on four peripheries of eclipse-arranged porphyrin macrocycles, are successfully constructed through a top–down process from simulation to synthesis. These are the unusual examples of Zr-MOFs (or MOFs in general) based on phenolic porphyrins, instead of commonly known carboxylate-based types. Representative ZrPP-1 not only exhibits strong acid resistance (pH = 1, HCl) but also remains intact even when immersed in saturated NaOH solution (≈20 m), an exceptionally large range of pH resistance among MOFs. The metallation at the porphyrin core gives rise to materials with enhanced sorption and catalytic properties. In particular, ZrPP-1-Co, with precise and uniform distribution of active centers, exhibits not only high CO2 trapping capability (≈90 cm3 g−1 at 1 atm, 273 K, among the highest in Zr-MOFs) but also high photocatalytic activity for reduction of CO2 into CO (≈14 mmol g−1 h−1) and high selectivity over CH4 (>96.4%) without any cocatalyst under visible-light irradiation (λ > 420 nm). Given the strong chemical resistance under extreme alkali conditions, these catalysts can be recycled without appreciable loss of activity. The possible mechanism for photocatalytic reduction of CO2-to-CO over ZrPP-1-Co is also proposed. © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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Advanced Materials
ISSN: 0935-9648
Year: 2018
Issue: 2
Volume: 30
2 5 . 8 0 9
JCR@2018
2 7 . 4 0 0
JCR@2023
ESI HC Threshold:284
JCR Journal Grade:1
CAS Journal Grade:1
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 0
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