Cadmium(II)‐Loaded Fe3O4@MPTS Nanoparticles: Preparation and Application as Catalyst for C‐N Coupling Reactions. Issue 40 (25th October 2019)

• Record Type: Journal Article
• Authors: Rathod, Prakash B.; Chappa, Sankararao; Kumar, K. S. Ajish; Pandey, Ashok K.; Athawale, Anjali A.
• Is Part Of: ChemistrySelect. Volume 4:Issue 40(2019)
• Page Start: 11796
• Page End: 11800
• Publication Date: 2019-10-25
• Subjects: C−N bond formation -- Magnetic sorbent -- Mercapto functionalization -- Nanocatalyst -- Toxic metal ions; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/slct.201902432
• Languages: English
• ISSNs: 2365-6549

Abstract

Abstract: Surface of Fe3 O4 nanoparticles (NPs) was coated with (3‐mercaptopropyl)trimethoxysilane (MPTS) to form Fe3 O4 @MPTS NPs. Thus formed Fe3 O4 @MPTS NPs were studied for preconcentration of the representative Cd(II), Pb(II), and As(III) ions, and loading capacities toward these ions were found to be 17(±0.7), 29(±0.3), and 13(±0.5) mg g −1, respectively. As an example of safe utilization of toxic metal ions strongly bonded on magnetically retrievable NPs for catalytic applications, the Cd(II) loaded Fe3 O4 @MPTS NPs were successfully utilized for conducting the C−N bond formation reaction in comparable yields with that were reported in the literature but exhibited higher turnover number and turnover frequency. Abstract : The magnetic iron oxides (MNPs) functionalized with mercapto groups bind strongly with a number of toxic heavy metal ions, and thus can be used to load desired heavy metal ions for catalyzing the organic reactions such as C−N bond formation by Cd(II) loaded MNPs and subsequent recycling without contaminating products with toxic metal ions.