UiO-66-NH2/TTACP/Ni@Pd MNPs exhibited excellent catalytic activity for the reduction of 2-nitroaniline and 4-nitrophenol.

This study investigated the potential application of an efficient, easily recoverable, and reusable KCC-1 nanoparticle catalyst, which supported Cu (II)-b-cyclodextrin complex for 3-aryl-2oxazolidinones synthesis from CO 2 , ethylene oxide, and anilines. KCC-1/b-CD/Cu (II) NPs were thoroughly characterized by using TEM, SEM, TGA, FT-IR, ICP-MS, and BET. The observations were exploited in the direct and selective chemical fixation of CO 2 to afford high degrees of CO 2 capture and conversion. Analysis of the recycled catalyst by ICP-MS revealed only minor changes in its morphology after the reaction and thus confirmed the robustness of the catalyst.

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Novel heterogeneous catalyst systems comprised of a fibrous nanosilica-supported nano-Ni@Pd-based ionic liquid (KCC-1/IL/Ni@Pd) are described for the cyclization of propargylic amines with CO 2 to provide 2-oxazolidinones.KCC-1 with high surface area was functionalized with IL acting as a robust anchor so that the nano-Ni@Pd was well dispersed on the fibres of the KCC-1 microspheres, without aggregation. Because of the amplification effect of IL, high loading capacities of the nanocatalysts were achieved. The reported synthesis includes several advantages like solvent-free conditions, operational simplicity, short reaction times, environmentally benign reaction conditions, cost effectiveness, high atom economy and excellent yields, making it a genuinely green protocol.