With the increasing aim of deep desulfurization of fuel, a kind of novel surfactant-type heteropolyacid [(CH₃)₂(C_nH_2n + 1)N(CH₂)]₂[POM] (SRL-POM, n = 10, 12, 14 and 16) was successfully synthesized and then it template self-construction of MOF-199 in the pore of MCM-41 (SRL-PMM). This catalyst was exploited to act as a stable heteropolyacid-based one, under the dual protection functions of MOF-199 and MCM-41. Structure was characterized by X-ray diffraction (XRD), Fourier transform infrared (FT-IR), X-ray photoelectron spectroscopy (XPS), N₂ adsorption-desorption, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and so on. Direct oxidation of dibenzothiophene (DBT) using O₂ was performed by this surfactant-type heteropolyacid catalyst with 100% selectivity in the oxidation of DBT to sulfones under the optimal conditions and shown a better reusability. Furthermore, the kinetic studies reveal that the oxidative desulfurization can present a pseudo first-order kinetic process, and this work offers an alternative for oxidative desulfurization of real oil samples as well.

随着燃料深度脱硫的增加，一种新型的表面活性剂型杂多酸[（CH ₃）₂（C _n H _{2n +1}）N（CH ₂）] ₂ [POM]（SRL-POM，n = 10 ，12、14和16）成功合成，然后在MCM-41（SRL-PMM）的孔中进行MOF-199的模板自我构建。在MOF-199和MCM-41的双重保护功能下，该催化剂被用作稳定的杂多酸基催化剂。通过X射线衍射（XRD），傅立叶变换红外（FT-IR），X射线光电子能谱（XPS），N _2来表征结构吸附-解吸，扫描电子显微镜（SEM），透射电子显微镜（TEM）等。该表面活性剂型杂多酸催化剂在最佳条件下以100％的选择性将DBT氧化为砜，从而使用O ₂直接氧化二苯并噻吩（DBT）。此外，动力学研究表明，氧化脱硫可以呈现拟一级反应动力学过程，这项工作也为真实石油样品的氧化脱硫提供了另一种选择。