In this work, deep oxidative desulfurization was attained using a new kind MoO₃ modified magnetic catalysts, in which metal organic framework (MOF-199) as supports and the magnetic Fe₃O₄ added to provide the extra character for increasing practical use value. The characterization of the as-designed catalysts were assessed by FT-IR, XRD, SEM, TPR and XPS analyses. To be noted, various morphologies of MoO₃ were used to form the final products and compared to discuss their influences on the ODS performance in this work. Among them, the Fe@Mo-4@MOF, containing the fibroid MoO₃, showed an excellent catalytic performance to the ultra-deep oxidative desulfurization in 45 min, which was mainly attributed to the special morphology of MoO₃, providing the higher contact area with the DBT to increase the ODS efficiency. Moreover, the possible mechanism was proposed to illustrate the ODS process and only slight decrease of DBT removal was observed after 15 recycling times.

在这项工作中，使用新型的MoO ₃改性磁性催化剂实现了深度氧化脱硫，其中金属有机骨架（MOF-199）作为载体，并添加了磁性Fe ₃ O ₄为增加实用价值提供了额外的特性。通过FT-IR，XRD，SEM，TPR和XPS分析评估了设计催化剂的表征。要注意的是，MoO _3的各种形态被用来形成最终产品，并进行比较以讨论它们对这项工作中ODS性能的影响。其中，Fe @ Mo-4 @ MOF包含肌瘤MoO ₃，在45分钟内对超深度氧化脱硫表现出优异的催化性能，这主要归因于MoO ₃的特殊形态，与DBT的接触面积更大，从而提高了ODS效率。此外，提出了可能的机制来说明ODS过程，并且在15次循环使用后，仅观察到DBT去除量略有下降。