Magnetically separable palladium nanocluster supported iron based metal–organic framework (MIL-88B) catalyst in efficient hydrogenation reactions

Abstract

A facile process to fabricate a magnetically separable palladium nanocluster (Pd NCs) supported iron based metal–organic framework, Pd@MIL-88B catalyst is reported. Highly active Pd NCs are obtained by a simple in situ chemical reduction of immobilized metal salts within the porous MIL-88B. Structure and morphology analysis of the Pd@MIL-88B catalyst is characterized by X-ray diffraction (XRD), and transmission electron microscopy (TEM). The Pd@MIL-88B exhibits excellent catalytic activity towards the reduction of 4-nitrophenol completed in only 15 s at room temperature, even when the Pd content was 2.7 wt%. Moreover, the catalyst can be reused several times with significant recycling stabilities on magnetic separation.