Platinum nanoparticles obtained on S-layer protein/polymer particle systems and their performance as catalysts

SERRADELL, M. DE LOS A.; BOLLA, P.A.; PERUZZO, P.J.; HUGGIAS, S.; CASELLA M.L.

Mar del Plata

Congreso; XVI Latin-American Plymer Simposuim, Mar del Plata; 2018

INTEMA, UNMdP

The adsorption of proteins in polymeric particles has a significant importance in various applications1. Among them, its use as a support for nanocatalysts based on precious metals is a promising field2. In particular, the S-layer proteins (bacterial surface proteins) have been used as a biotemplate to obtain metal arrangements with precise spatial distribution due to the regular paracrystalline structure that they can adopt. With this on mind, this work presents the synthesis of Pt nanoparticles on polymer particle/S-layer protein systems and their performance as catalysts.Based on the capacity of the S-layer proteins to act as a biotemplate for metal clusters, it was possible to obtain Pt nanoparticles/protein-polymer composites at mild conditions. These catalysts were active for the reduction of p-nitrophenol in the presence of NaBH4, with high conversion percentages.