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采用水玻璃为硅源、三氯化钛为钛源,在四丙基氢氧化铵(TAPOH)和阳离子聚合物共模板的条件下,成功地合成了介孔TS-1沸石。采用X-射线衍射、N2-物理吸附、扫描电镜、透射电镜、红外光谱和紫外光谱对合成的介孔TS-1沸石进行了表征。结果表明,合成的样品具有很好的结晶度和良好的四配位骨架Ti,并且沸石晶体内存在丰富的介孔结构。对大分子二苯基硫醚和二苄基硫醚的氧化实验结果显示,与微孔TS-1相比,含有介孔的TS-1沸石具有更好的催化性能。
The mesoporous TS-1 zeolite was successfully synthesized using sodium silicate as the silicon source and titanium trichloride as the titanium source under the conditions of tetrapropylammonium hydroxide (TAPOH) and cationic polymer co-template. The synthesized mesoporous TS-1 zeolites were characterized by X-ray diffraction, N2-physisorption, scanning electron microscopy, transmission electron microscopy, infrared spectroscopy and UV spectroscopy. The results show that the synthesized sample has good crystallinity and good four-coordinate framework Ti, and the mesoporous structure exists in the zeolite crystal. The experimental results of oxidation of the macromolecular diphenyl sulfide and dibenzyl sulfide show that TS-1 zeolite with mesopore has better catalytic performance than microporous TS-1.