Premium
Facile and Controlled Fabrication of Functional Gold Nanoparticle‐coated Polystyrene Composite Particle
Author(s) -
Li Yunxing,
Pan Yunfei,
Zhu Lili,
Wang Zhaoqun,
Su Dongmeng,
Xue Gi
Publication year - 2011
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201100377
Subject(s) - polystyrene , materials science , composite number , scanning electron microscope , transmission electron microscopy , nanoparticle , particle (ecology) , colloidal gold , chemical engineering , nanotechnology , particle size , dynamic light scattering , raman spectroscopy , fabrication , composite material , optics , polymer , medicine , oceanography , physics , alternative medicine , pathology , geology , engineering
Gold nanoparticles‐coated polystyrene (AuNPs‐coated PS) composite particles with raspberry‐like morphology are successfully prepared with the aid of a unique thermodynamically driving effect. It is of considerable interest that the AuNPs generate and self‐assemble with raw, ordinary PS microspheres that preexist in the oxidation–reduction systems. The synthesized AuNPs‐coated PS composite particles have been extensively characterized using scanning electron microscope, transmission electron microscope, and UV–Vis‐NIR spectroscopy. The results indicate that the morphology of the resultant composite particles is governed by simply changing the amount and type of reductants and the concentration of PS microspheres. The AuNPs‐coated PS composite particles also exhibit the good surface‐enhanced Raman scattering and catalytic performances.