Titanium-containing zeolite-based catalysts have been synthesized and investigated as catalysts in methyl(phenyl)sulfide oxidation with hydrogen peroxide. A hierarchical TS-1 prepared by the secondary templating and a layered TS-1 without and with silica and silica-titania pillars have been studied. Conventional TS-1 was a benchmarking material. The study focuses on observation of the different catalytic performance with regard to textural properties; presence and volume of mesopores and different diffusion characteristics. Thus, a deficiency and excess of the oxidizing agent were used in the catalysed reactions and the progress of reaction and selectivity to products were studied. All tested catalysts have shown after 240 min almost total conversion of methyl(phenyl)sulfide with different selectivity (substrate/catalyst mass ratio 10). It was observed that the reactants ratio hydrogen peroxide/ methyl(phenyl)sulfide influences the selectivity to sulfoxide or sulfone over a particular catalyst. In the case of hydrogen peroxide deficiency experiments (H₂O₂/sulfide = 0.5 mol/mol) the catalysts exhibited different distributions of products. Lamellar catalyst provided 100% selectivity to sulfoxide, the others in range of 90–65% selectivity to sulfoxide; however, the selectivity was independent on the reaction time and substrate conversion. In the case of the excess of the oxidant, except for Ti-pillared TS-1, all the catalysts showed stabile selectivity of 65% towards methyl(phenyl)sulfoxide being independent of the catalyst. The Ti-pillared TS-1 has shown, during the reaction progress, a decrease in the selectivity to sulfoxide from initial 60% to final 20% of sulfoxide at almost total conversion. The only case when higher selectivity to sulfone was achieved was gradual dosing of hydrogen peroxide.

已经合成了含钛的沸石基催化剂，并作为过氧化氢氧化甲基（苯基）硫化物的催化剂进行了研究。已经研究了通过二次模板制备的分层TS-1和没有和有二氧化硅和二氧化硅-二氧化钛支柱的分层TS-1。常规的TS-1是基准材料。这项研究着重于观察不同的催化性能的质构特性。中孔的存在和体积以及不同的扩散特性。因此，在催化反应中使用了氧化剂的不足和过量，并研究了反应的进展和对产物的选择性。所有测试过的催化剂均显示在240分钟后，具有不同选择性（基质/催化剂质量比10）的甲基（苯基）硫化物几乎全部转化。观察到反应物比过氧化氢/甲基（苯基）硫化物影响特定催化剂上对亚砜或砜的选择性。在过氧化氢缺乏实验中（H₂ O ₂ /硫化物= 0.5 mol / mol）催化剂表现出不同的产物分布。层状催化剂对亚砜的选择性为100％，其他催化剂对亚砜的选择性为90–65％。但是，选择性与反应时间和底物转化率无关。在氧化剂过量的情况下，除了钛柱状TS-1外，所有催化剂对甲基（苯基）亚砜的稳定选择性为65％，而与催化剂无关。Ti柱状TS-1在反应过程中显示出，在几乎总转化率下，亚砜的选择性从最初的60％降低到最终的20％。实现对砜的更高选择性的唯一情况是逐步计量加入过氧化氢。