Journal
RSC ADVANCES
Volume 11, Issue 16, Pages 9731-9739Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1ra00590a
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Funding
- Natural Science Foundation of China [21101097, 51573124]
- Opening Foundation of Key Laboratory of Laser & Infrared System of Shandong University [2019-LISKFJJ-005]
- North University of China
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The highly stable [ZnHo(CO2)(6)(OH2)] heterometallic framework with outstanding physicochemical properties has wide applications in catalysis and luminescent materials.
The exquisite combination of Zn-II and Ho-III generated the highly robust [ZnHo(CO2)(6)(OH2)]-based heterometallic framework of {[ZnHo(TDP)(H2O)]center dot 5H(2)O center dot 3DMF}(n) (NUC-30, H6TDP = 2,4,6-tri(2 ',4 '-dicarboxyphenyl)pyridine), which featured outstanding physicochemical properties, including honeycomb nanochannels, high porosity, large specific surface area, the coexistence of highly open Lewis acid-base sites, good thermal and chemical stability, and resistance to most organic solvents. Due to its extremely unsaturated metal tetra-coordinated Zn(ii) ions, hepta-coordinated Ho(iii) and high faveolate void volume (61.3%), the conversion rate of styrene oxide and CO2 into cyclic carbonates in the presence of 2 mol% activated NUC-30 and 5 mol% n-Bu4NBr reached 99% under the mild conditions of 1.0 MPa and 60 degrees C. Furthermore, the luminescence sensing experiments proved that NUC-30 could be used as a fast, sensitive and highly efficiency sensor for the detection of Fe3+ in aqueous solution. Therefore, these results prove that nanoporous MOFs assembled from pyridine-containing polycarboxylate ligands have wide applications, such as catalysis and as luminescent materials.
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