Abstract
The palladium-loaded montmorillonite (Pd@Mt) was mixed with polycarbonate (PC) solution to obtain Pd@Mt/PC composite. A different solvent was used to treat the Pd@Mt/PC coating so as to induce crystallisation of PC and fabricate a porous surface. The scanning electron microscopy and surface area measurement results proved this successful change. The Pd@Mt/PC that was treated by isopropanol fabricated a porous surface coating on glass microsphere (Pd@Mt/PC-M), which was found to be a conveniently obtained environment-friendly catalyst in the Suzuki reaction, as the Pd content was only 0.2012 ppm in the product solution. Notably, it exhibited high efficiency, affording the corresponding product in good to excellent yields for 20 reactants (in the range of 78–99%, only two reactants gained yield below 90%). As a heterogeneous catalyst, it could be easily recovered by simple filtration from the reaction mixture and a high yield of more than 90% at a third run was remained.
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