Title: Comparison of Two Synthesis Routes to Obtain Gold Nanoparticles in Polyimide
Authors: Vanherck, Katrien ×
Verbiest, Thierry
Vankelecom, Ivo #
Issue Date: Jan-2012
Publisher: American Chemical Society
Series Title: Journal of Physical Chemistry C vol:116 issue:1 pages:115-125
Abstract: Gold nanoparticle containing polymer materials find applications in catalysis, facilitated transport, sensing, and separations. In this study, two routes to obtain stable gold nanoparticles in a polymer matrix, namely, in situ chemical reduction of a gold salt and the use of preformed poly(vinylpyrrolidone) protected gold nanoparticles, were followed to prepare gold containing polyimide hybrid membranes. The influence of the synthesis method on the nanoparticle size, dispersion, and surface plasmon behavior was investigated by transmission electron microscopy, UV vis spectroscopy, and diffuse reflectance spectroscopy. Significant differences were found concerning the dispersion and aggregation of the nanoparticles. The influence of the synthesis method on the membrane structure and performance was also studied by scanning electron microscopy and in filtrations of dye solutions in ethanol and isopropanol. The filtrations were repeated while the gold nanoparticles were plasmonically heated by a green Argon ion laser beam, resulting in localized heating of the membrane and increased fluxes.
ISSN: 1932-7447
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Imaging and Photonics
Centre for Surface Chemistry and Catalysis
× corresponding author
# (joint) last author

Files in This Item:

There are no files associated with this item.

Request a copy


All items in Lirias are protected by copyright, with all rights reserved.

© Web of science