采用溶胶-凝胶法制备SiO2纳米微球,以KH-550为粘结剂,利用简单的化学还原法,成功制备出Au-SiO2复合纳米微球,并通过扫描电子显微镜,透射电子显微镜,X射线衍射仪,紫外-可见分光光度计和多功能成像光电子能谱仪对其进行表征.结果表明,Au-SiO2复合纳米微球粒径约130 ～ 160 nm,且颗粒较均匀、分散性较好.样品中金纳米粒子均匀分散于SiO2纳米微球表面,粒径约4～9 nm,具有良好的面心立方结构,晶型良好,且Au物种主要以零价金属态存在.
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