Abstract
A series of aluminum-based coordination polymers or metal–organic frameworks (Al–MOFs), i.e., DUT-4, DUT-5, MIL-53, NH2-MIL-53, and MIL-100, have been facile prepared by microwave (MW)-assisted reactions and used as catalysts for selective sulfoxidation reactions. The MW-assisted synthesis drastically reduced the reaction time from few days to hours. The prepared MOFs have smaller and uniform particle sizes and better yield compared to conventional hydrothermal method. Furthermore, the Al–MOFs have been successfully demonstrated as catalysts in oxidation reaction of methyl phenyl sulfide with H2O2 as oxidant, even under mild conditions, with more than 95% conversion.
Highlights
Porous coordination polymers (PCPs) or metal–organic frameworks (MOFs) containing abundant metals have fascinated the academic as well as industrial based researchers around the world
Our recent research interests are mainly devoted on the synthesis, properties and application studies of nanoporous aluminum MOFs [10,11,12,13,14]
The MOFs were synthesized by MW-assisted hydrothermal reactions at temperatures between 120 and 210 ◦ C, which led to significant yields (67–91%) within 2 h of reaction time
Summary
Porous coordination polymers (PCPs) or metal–organic frameworks (MOFs) containing abundant metals have fascinated the academic as well as industrial based researchers around the world. In this regard, aluminum-based MOFs (Al–MOFs) are considered to be one of the better choices because of their high stability and porosity [1,2,3,4,5]. The synthesis of MOFs has been mainly achieved by conventional heating through hydrothermal/solvothermal reactions, which requires several days to weeks [15] In this context, a new microwave (MW) assisted reaction has been introduced as a more rapid way to reduce the synthesis time with increasing production rate [16]. Our group reported microwave (MW) assisted synthesized calcium and strontium MOFs with selective carbon dioxide adsorption [22]
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