文件名称：PS小球的制备及其应用
文件大小：1.46MB
文件格式：PDF
更新时间：2017-09-05 04:31:44
PS AuNPs
A unique method of fabricating PS/AuNPs composite particles in ex situ mode is proposed on the basis of thermodynamically driving mechanism. It is facile and versatile as it eliminates the need for surface functionalizations and modifications of both PS microspheres and AuNPs. The PS/AuNPs composite particles take on a raspberry-like morphology with controllable coverage according to some thermodynamic factors, which have been extensively characterized by scanning electron microscopy, transmission electron microscopy, and thermogravimetric analysis. More importantly, the PS/AuNPs composite particles hold higher catalytic efficiency and better repeatability than the previously reported results, which are confirmed in two oxidation– reduction reactions of 2-nitroaniline/NaBH 4 and rhodamine B/NaBH 4 .