Highly Efficient and Recyclable Composites C _<i>x</i> PMo ₄ @MIL‐100(Fe) ( <i>x</i>  = 4, 8, 12, 16) for Extraction Oxidation Desulfurization of Multicomponent Model Fuel

ABSTRACT A series of composites C x PMo 4 @MIL‐100(Fe) ( x = 4, 8, 12, and 16) were synthesized via one‐pot solvothermal method, characterized by various techniques, and employed as catalyst for extraction oxidation desulfurization of multicomponent simulated fuel. Among them, C 8 PMo 4 @MIL‐100(Fe) exhibited optimal catalytic activity, achieving 99.8% total desulfurization efficiency within 60 min under the optimal conditions. In addition, the desulfurization efficiency decreased in the sequence DBT &gt; 4‐MDBT &gt; 4,6‐DMDBT &gt; BT, which was attributed to the interplay between steric hindrance and electron density of the sulfide molecules. Furthermore, C 8 PMo 4 @MIL‐100(Fe) exhibited excellent reusability, maintaining an efficiency of over 92% after six consecutive cycles. These findings emphasize the crucial role of adjusting the interaction between polyoxomolybdenum and metal–organic frameworks to achieve efficient and sustainable fuel desulfurization, and provide a theoretical basis for the rational design of high‐performance heterogeneous catalysts.