Abstract The synthesis of highly efficient and stable catalysts for oxidative desulfurization is still a challenging task. Herein, a composite material (HPMo@UiO-66) of phosphomolybdic acid (HPMo) encapsulated in the metal-organic framework UiO-66 with missing-linker defects was prepared via a one-pot hydrothermal method. A series of as-synthesized catalysts were systematically characterized by XRD, FT-IR, SEM, BET, TGA, XPS, UV–vis and PL. Through oxidative desulfurization experimental evaluations, the catalyst 0.5-HPMo@UiO-66-D with defects shows the superior catalytic oxidative desulfurization performance and high reusability. 0.5-HPMo@UiO-66-D is able to completely remove DBT in the model fuel in 60 min, and the reaction system can be recycled 10 times with a high activity. In addition, the kinetics and the activation energy of the oxidative desulfurization were studied.

中文翻译：

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具有缺陷的金属-有机骨架 UiO-66 中的磷钼酸：一种高效稳定的氧化脱硫催化剂

摘要 合成高效稳定的氧化脱硫催化剂仍然是一项具有挑战性的任务。在此，通过一锅水热法制备了一种磷钼酸（HPMo）复合材料（HPMo@UiO-66），其包裹在具有缺失接头缺陷的金属有机骨架UiO-66中。通过 XRD、FT-IR、SEM、BET、TGA、XPS、UV-vis 和 PL 系统地表征了一系列合成的催化剂。通过氧化脱硫实验评价，具有缺陷的催化剂0.5-HPMo@UiO-66-D显示出优异的催化氧化脱硫性能和高重复使用率。0.5-HPMo@UiO-66-D能够在60分钟内完全去除模型燃料中的DBT，反应体系可循环使用10次，活性高。此外，