Catalysis by multifunctional polyelectrolyte capsules

Gold nanoparticles and nanocomposites have high catalytic performance for several chemical reactions. Here we present gold and iron oxide nanoparticle modified polymer capsules as porous and multifunctional platforms for catalysis. Layer-by-layer polyelectrolyte microcapsules were formed on calcium...

Full description

Saved in:
Bibliographic Details
Published in:RSC advances 2016-01, Vol.6 (85), p.81569-81577
Main Authors: Hussain, Syed Zajif, Zyuzin, Mikhail V, Hussain, Irshad, Parak, Wolfgang J, Carregal-Romero, Susana
Format: Article
Language:English
Subjects:
Borohydrides
Catalysis
Catalysts
Gold
Iron oxides
Nanocomposites
Nanoparticles
Polyelectrolytes
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Gold nanoparticles and nanocomposites have high catalytic performance for several chemical reactions. Here we present gold and iron oxide nanoparticle modified polymer capsules as porous and multifunctional platforms for catalysis. Layer-by-layer polyelectrolyte microcapsules were formed on calcium carbonate template cores loaded with gold nanoparticles, allowing for high gold loading of the capsules. Magnetic nanoparticles were incorporated in the polymeric shells of the capsules, allowing for magnetic separation. The influence on the catalytic behaviour of gold was studied in terms of the nanoparticle size, the presence of a polymeric shell, and the presence of the magnetic nanoparticles in the shell, by using the model electron transfer reaction between hexacyanoferrate( iii ) and borohydride. Gold and iron oxide modified polyelectrolyte capsules have been used as multifunctional platforms for catalysis and magnetic separation. Gold nanoparticle size and shell composition had an influence on their catalytic activity.
ISSN:2046-2069
2046-2069
DOI:10.1039/c6ra08171a