期刊
INORGANIC CHEMISTRY
卷 58, 期 18, 页码 12433-12440出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.9b02114
关键词
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资金
- Science and Technology Project of Jiangxi Province [20192BAB216014]
- Science and Technology Research Projects of Jiangxi Province Education Department through the Youth Project [GJJ180346]
- National Natural Science Foundation of China [21865010, 21865009, 21872049]
Metal-organic framework (MOF)-based magnetic Pt catalyst Fe3O4@Pt@MIL-100(Fe) core-shell heterostructures were prepared through transforming Fe3O4 into MIL-100(Fe) in benzene-1,3,5-tricarboxylic acid solution along with encapsulating the Pt nanoparticles successively adsorbed onto the surface of the Fe3O4 nanosphere and the continuously forming surfaces of the growing MIL-100(Fe) crystals. This method circumvented the obstacles, controlling the formation of metal nanoparticles (MNPs) inside MOFs or regulating growth of MOFs around the MNPs, for preparing an MNP-MOF composite catalyst. The obtained well-defined Fe3O4@Pt@MIL-100(Fe) core-shell heterostructure was shown promoting catalytic activity on the reduction of 4-nitrophenol due to the synergistic effect between the Pt nanoparticles and the MIL-100(Fe) shell and recycling convenience due to the rapid separation of the Fe3O4 core under an external magnetic field.
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