Journal
GREEN CHEMISTRY
Volume 16, Issue 8, Pages 3796-3802Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4gc00313f
Keywords
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Funding
- EPSRC
- University of Nottingham
- CVCP
- CONACyT
- Leverhulme Trust Early Career Research Fellowship
- Nottingham Research Fellowship
- Engineering and Physical Sciences Research Council [EP/I011870/1] Funding Source: researchfish
- EPSRC [EP/I011870/1] Funding Source: UKRI
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A continuous flow process for the synthesis of a metal-organic framework using only water as the reaction medium and requiring only short residence times is described. This affords a new route to scale-up of materials incorporating many of the principles of Green Chemistry. The process is demonstrated by the synthesis MIL-53(Al) via continuous flow reaction requiring only 5-6 minutes with a space time yield of 1300 kg m(-3) d(-1). We have demonstrated the synthesis of 500 g of MIL-53(Al) using this process, which can be scaled-up further by simply feeding further solutions of metal salt and ligand through the reactor. The product has a higher surface area and a better colour than a commercially produced sample of this MOF. In addition, a new and effective method for the extraction of terephthalic acid from within the pores of MIL-53(Al) using supercritical ethanol has been developed, representing a new methodology for activation and removal of substrates from porous hosts.
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