Direct deposition of gold nanoparticles onto polymer beads and glucose oxidation with H2O2

Tamao Ishida; Kyoko Kuroda; Naoto Kinoshita; Wataru Minagawa; Masatake Haruta

doi:10.1016/j.jcis.2008.02.046

Direct deposition of gold nanoparticles onto polymer beads and glucose oxidation with H2O2

J Colloid Interface Sci. 2008 Jul 1;323(1):105-11. doi: 10.1016/j.jcis.2008.02.046. Epub 2008 Feb 29.

Authors

Tamao Ishida¹, Kyoko Kuroda, Naoto Kinoshita, Wataru Minagawa, Masatake Haruta

Affiliation

¹ Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan.

PMID: 18387617
DOI: 10.1016/j.jcis.2008.02.046

Abstract

Gold nanoparticles (Au NPs) were deposited directly from aqueous solution of diethylenediaminegold(III) complex onto polymer beads commercially available, such as poly(methyl methacrylate) (PMMA), polystyrene (PS), and polyaniline (PANI) without surface modification. The dropwise addition of NaBH4 to reduce Au(III) was found to be very effective to obtain small Au0 NPs with a narrow size distribution except for PANI. The catalytic performance of Au NPs deposited on polymer beads for H2O2 decomposition and glucose oxidation with H2O2 were more significantly affected by the kinds of polymer supports than by the size of Au NPs. The equimolar oxidation of glucose with H2O2 could be operated by controlling the decomposition rate of H2O2 over Au/PMMA.