Journal
CRYSTENGCOMM
Volume 14, Issue 5, Pages 1613-1617Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c1ce06138k
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Funding
- National Natural Science Foundation of China (NSFC) [20971001, 51002001, 20873128]
- NSFC-CAS [10979014]
- Ministry of Education, China [NCET-08-0617]
- Anhui University
- Chinese Academy of Sciences
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Hierarchically mesostructured MIL-101 metal-organic frameworks (MOFs) were successfully synthesized under solvothermal synthesis conditions by using the cationic surfactant cetyltrimethylammonium bromide as a supramolecular template. The mesostructured MIL-101 MOFs were characterized by powder X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and nitrogen adsorption-desorption isotherms at 77 K. The results suggest that the mesostructured MIL-101 MOFs obtained are composed of numerous MOF nanocrystals. Pore size distribution analyses of the as-synthesized MOF samples reveal that such mesostructured MIL-101 MOFs have well-defined trimodal pore size distributions showing simultaneous existence of meso-and macropore channel systems. Significantly, such hierarchically mesostructured MIL-101 exhibits remarkably accelerated adsorption kinetics for dye removal in comparison with the bulk MIL-101 crystals, which is due to unique hierarchically meso- nd macropores created in the solid.
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