Hybridization\nof Metal Nanoparticles with Metal–Organic Frameworks Using\nProtein as Amphiphilic Stabilizer

Abstract

Here,\na facile strategy is reported to efficiently hybridize metal nanoparticles\n(MNPs) with typical metal–organic frameworks (MOFs) of ZIF-8\n(zeolitic imidazolate framework-8), which employs bovine serum albumin\n(BSA, a serum albumin protein derived from cows) as the amphiphilic\nstabilizer to increase the affinity of MNP toward MOFs. For instance,\nthe as-synthesized PdNPs/ZIF-8 composites with diameter from 100 to\n200 nm always maintain well-defined crystalline structure, and the\nPdNPs with small size of ∼2 nm are well-dispersed in the crystal\nof MOFs without serious aggregations due to the BSA stabilizer. In\nSuzuki cross-coupling reactions of aryl halide, the PdNPs/ZIF-8 as\ncatalysts have exhibited high activity and satisfied reusability owing\nto the use of BSA stabilizer as well as the fixing of MOFs matrixes.\nIn addition, the strategy also can be extended to synthesize other\nkinds of MNPs/MOFs hybrid composites with tunable particle size, which\nbrings more opportunity for functional MOFs hybrid materials.