【摘要】 以正硅酸乙酯为硅源、钛酸四丁酯为钛源、四丙基氢氧化铵为模板剂，采用聚乙二醇作为结构导向剂制备了片层结构钛硅分子筛，进行了表征和分析。结果表明：聚乙二醇辅助合成的钛硅分子筛（PTS）具有明显的片层结构、较高的比表面积和多级孔道结构；以1 000 mg/L噻吩-正辛烷为模拟油、H₂O₂为氧化剂进行脱硫性能实验，在相同脱硫时间内PTS-30（硅钛比为30）对噻吩脱除性能较传统钛硅分子筛提高近10%,循环7次后PTS-30分子筛脱硫性能仍保持60.2%。更多还原

【Abstract】 The lamellar-structured titanium-silicon molecular sieves were prepared using ethyl orthosilicate as the silicon source, tetrabutyl titanate as the titanium source, tetrapropylammonium hydroxide as the templating agent, and poly（ethylene glycol） as the structure-directing agent for characterization and analysis. The results showed that the titania-silica molecular sieves（PTS） synthesized with the assistance of polyethylene glycol had obvious lamellar structure, high specific surface area and multilevel pore structure; the desulfurization performance experiments were carried out with 1 000 mg/L thiophene-n-octane as the simulated oil and H₂O₂ as the oxidant. The desulfurization performance of PTS-30（Si/Ti ratio of 30） for thiophene removal within the same desulfurization time was nearly 10% higher than that of traditional titanium-silicon molecular sieve, and the desulfurization performance of PTS-30 molecular sieve still maintained 60.2% after 7 cycles.更多还原