Generalized Approach for Rapid Aqueous MOF Synthesis by Controlling Solution pH

• DOI: 10.1021/acs.cgd.0c00895
• Publication Date: 2020-09-01T19:45:05Z
• Authors: Luke Huelsenbeck; Hongxi Luo; Prince Verma; Jillian Dane; Rachel Ho; Emily Beyer; Hailey Hall; Geoffrey M. Geise; Gaurav Giri
• Keywords: Filtration (mathematics)

Metal–organic frameworks (MOFs) are a promising class of functional materials with applications in catalysis, separations, electronics, and drug delivery, among others. Despite range techniques utilized for MOF synthesis, generalizable scalable approach has yet to be developed producing MOFs without using environmentally damaging organic solvents. Here, we look at synthesis as reaction an aqueous medium propose new methods measuring conversion selectivity. We show that controlling reactant speciation via pH is the prototypical UiO-66, UiO-66-NH2, ZIF-L, HKUST-1 space–time yields (STY) over 2250 kg m–3 day–1, which 1 order magnitude improvement zirconium-based MOFs. UiO-66-NH2 crystallization complete 5 min room temperature, 70% extent completed by 30 s. Finally, apply rapid coating cotton fabric up 20 wt % sequential dip-coating (SQD) technique demonstrate particulate matter (PM1–4) filtration 85%. This work shows green-chemistry-based, pathway multiple demonstrates its utility applications. The ability produce alternative especially relevant under pandemic conditions, where SQD offers high-throughput manner providing air modifying commonly available textile materials.