将硅胶微球浸渍于钛硅分子筛(TS-1)合成液中,经晶化、焙烧制得负载TS-1分子筛硅胶微球催化剂.用XRD、IR和SEM测试技术对其进行表征,将其用于过氧化氢氧化苯合成苯酚的反应中.结果显示,TS-1分子筛能够很好地负载于硅胶表面,晶化温度160℃,晶化时间72 h,焙烧温度550℃,焙烧时间6 h时,获得的催化剂显示良好的催化性能.在苯和H2O2初始原料量分别为0.5和0.1 mol、催化剂加入量为8 g、反应温度为60℃条件下,经过3 h的反应,苯的转化率达到10.32%,苯酚选择性达到97.12%.9次重复使用后的苯转化率为9.42%,苯酚选择性为93.14%.
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