通过引入水杨醛衍生的Schiff碱功能单体与钛酸正丁酯发生水解共缩聚反应,制备了二氧化钛负载的银纳米粒子催化剂.采用红外光谱分析仪(FTIR)、广角X射线衍射仪(Wide Angle XRD)、高分辨透射电子显微镜(HRTEM)和紫外-可见分光光度计(UV-Vis)等技术手段对制得的样品进行了表征,并考察了样品催化CO氧化反应的活性.结果表明,通过改变Schiff碱功能单体的用量和样品焙烧温度可以调控Ag纳米粒子的粒径和TiO2载体的结构,从而可以调控Ag/TiO2纳米催化剂的活性.当Schiff碱功能单体用量为20％,焙烧温度为873 K时,Ag/TiO2纳米催化剂活性最好,CO转化率达到99.9％.
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