Magnetic nanocatalysts with PAMAM dendrimer for Rhodamine degradation

Three types of novel magnetically recoverable core-shell heterogeneous nanoparticle catalysts were prepared by individual grafting of Poly(amidoamine) dendrimer with generation G(0), G(1) and G(2) on Fe3O4-Poly(4-MS-DVB-GMA) core-shell as a common matrix followed by stabilization of AuNPs. The activity of these three catalysts were assessed based on the reduction of Rh-B. The reduction of Rhodamine B reveals that Fe3O4-Poly(4-MS-DVB-GMA)-PAMAM-G(2) is 6 times (kobs = 35.28×10-3 min-1) active than the G(0) dendrimer catalyst and its activity is maintained upto 5th cycle thus enlightening the recyclability and stability.These core-shell magnetic nanocomposites possess many future biological applications.

Autorentext

Dr.E.Murugan,Associate Professor has received his PhD from Department of Physical Chemistry, University of Madras, Tamil Nadu, India. His field of specialization includes phase transfer catalysts, carbon nanotubes, dendrimer catalysis and polymer nanocomposites. To his credit, he has published more than 30 research articles in journals of repute.