Ordered Mesoporous Metal–Organic Frameworks Incorporated with Amorphous TiO₂ As Photocatalyst for Selective Aerobic Oxidation in Sunlight Irradiation

Abstract

Among the very few efforts for preparation of stable mesoporous metal−organic frameworks (MOFs), there is no report of an additive-free example via a surfactant-assisted templating method. On the other hand, photocatalytic aerobic oxidation of alcohols mediated by crystalline TiO 2 has been known as a green route, which has the potential to replace current technology with transition-metal-containing heterogeneous systems. Here, a simple procedure for preparation of HKUST-1 containing ordered mesoporous domains has been developed using nonionic block copolymer in DMF as the solvent. All materials have been thoroughly characterized by FTIR, FESEM, HRTEM, XRPD, EDS, and TG analysis. Subsequently, it has been demonstrated that incorporation of amorphous TiO 2 within the prepared mesoporous MOF could successfully develope a new type of photocatalyst system for selective aerobic oxidation of benzylic alcohols with moderate to high yields in sunlight irradiation.

Metal–Organic Framework (MOF) Compounds: Photocatalysts for Redox Reactions and Solar Fuel Production

“…[141] Different amounts of P123 were used to determine the optimum surfactant in the surfactant-assisted synthesis of HKUST-1 (SHK). [141] Different amounts of P123 were used to determine the optimum surfactant in the surfactant-assisted synthesis of HKUST-1 (SHK).…”

Ag2CO3/UiO-66(Zr) composite with enhanced visible-light promoted photocatalytic activity for dye degradation

“…Afterwards, research focus was placed on MOFs with visible-light photocatalytic activity. For example, it was found that MIL-88A [39], NTU-9 [40] and a series of MIL-53 MOFs (MIL-53(Fe), MIL-53(Cr) and MIL-53(Al)) [41,42] [44]. Cu 3 (BTC) 2 MOF was formed a core-shell structure with TiO 2 , and the resulting composite was used as a platform to photocatalyze gaseous reactions [45].…”

Template synthesis of hierarchical porous metal–organic frameworks with tunable porosity

“…20,29 The triblock copolymers P123 and F127, which are widely applied to synthesize mesoporous zeolites, have also been used as templates to prepare stable HPMOFs (e.g., Cu-BTC). [30][31][32] Other new kinds of templates have also been reported for the synthesis of HP-MOFs, such as amphiphilic dodecanoic acid (DDA),…”