有序介孔PMOs-Ti复合材料的制备及其苯乙烯催化氧化性能

Preparation of ordered mesoporous PMOs-Ti composites and their catalytic performance for styrene oxidation

采用一步共缩合结合水热合成技术,以1,2-双(三乙氧基硅基)乙烷为有机硅源,TiCl3为无机钛源,三嵌段共聚物P123为结构导向剂,制备了有序介孔PMOs-Ti复合材料.利用各种表征技术对复合材料的表面形貌和结构组成进行了表征,随后研究了PMOs-Ti复合材料对苯乙烯的催化氧化活性,并对其循环使用情况进行了考察.

Using 1,2-bis(triethoxysilyl)ethone as organosilicon source,TiCl3 as inorganic titanium source and triblock copolymer P123 as structure directing agent,one-step co-condensation combined with hydrothermal synthesis strategy was used to prepare the ordered mesoporous PMOs-Ti composites.The surface morphology and structural composition of the composites were characterized using various characterization techniques.Then the catalytic oxidation activity of PMOs-Ti composites on styrene was studied.Finally,the reusability of the catalysts was evaluated.