NDLI: Metallic nanoparticles immobilized in magnetic metal–organic frameworks: preparation and application as highly active, magnetically isolable and reusable catalysts

Content Provider	Royal Society of Chemistry (RSC)
Author	Niu, Xiao-ying Hu, Jing Zhang, Hai-juan Chen, Hong-li Ren, Cui-ling Chen, Xing-guo Qi, Sheng-da
Copyright Year	2014
Abstract	Separation and recycling of catalysts after catalytic reactions are critically required to reduce the cost of catalysts as well as to avoid the generation of waste in industrial applications. In this paper, ultrafine noble metallic nanoparticles are incorporated into cauliflower-like porous magnetic metal–organic frameworks (MOFs). With the restriction effects of the pore/surface structure in the MOFs, “surfactant-free” metallic nanoparticles are successfully obtained on a 2–3 nm scale. In addition, both the thickness of MOFs shell and the content of noble metallic NPs are tunable on the MOFs coating. Moreover, the microspheres exhibit excellent performance for the catalytic reduction of p-nitrophenol with a turnover frequency of 3094 h−1. The uniform cavities in the MOFs shell provide docking sites for p-nitrophenol and act as confinement nanoreactors, which greatly improves the catalytic performance. Most importantly, the magnetically responsive microspheres can be easily recovered by a magnetic field and show excellent reusability. The as-prepared catalyst also shows good activity for the reduction of other nitrobenzenes. Consequently, this work provides a highly active, magnetically isolable, and recyclable catalyst, which can be used for various catalytic industrial processes. The fundamental model can be further employed in a variety of biomedical fields including drug delivery and biological molecules separation.
Starting Page	3013
Ending Page	3024
Page Count	12
File Format	HTM / HTML PDF
ISSN	20444753
Volume Number	4
Issue Number	9
Journal	Catalysis Science & Technology
DOI	10.1039/c4cy00072b
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	4-Nitrophenol Nitrobenzene Drug delivery Magnetic field
Content Type	Text
Resource Type	Article
Subject	Catalysis

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