使用短链二元羧酸(包括草酸、戊二酸、柠檬酸和酒石酸)为模板剂,采用溶胶-凝胶法合成了具有大比表面积,孔径在3～7 nm的钛硅介孔分子筛. EDX和紫外可见漫反射光谱的研究结果表明,所合成的钛硅介孔分子筛中钛的分布均匀,钛物种以孤立态四面体构型为主. 本方法所合成的钛硅介孔分子筛对环己烯环氧化反应具有很高的催化活性和选择性.
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