Remarkable Catalytic Performance of Supported P‐Mo‐W Polyoxometalate by Green‐Friendly Fiber for Ultra‐Deep Oxidative Desulfurization

ABSTRACT The global demand for sustainable and cleaner energy sources has driven more research on advanced desulfurization technologies from fossil fuels, in which oxidative deep desulfurization has become a hotspot. In this paper, the nucleation‐controlled method was used to realize the uniform growth of porous amino metal–organic framework (MOF) on green‐friendly cotton fibers (CF), and the pore structure and amino functional groups on MOF were beneficial to firmly anchor of P‐Mo‐W polyoxometalate (POM) active species. Thus, a kind of new supported P‐Mo‐W POM composite catalyst (POM@MIL‐101@CF) has been obtained and exhibited excellent oxidative desulfurization performance for fuels. Under the optimal reaction conditions: T = 60°C, O/S = 7, two pieces of catalyst, the ODS efficiency of 0.5‐POM@MIL‐101@CF for DBT could reach 99.57%, with slight changes after more than 5 reuse times. Meanwhile, EPR experiments proved that ·O 2 − and ·OH radicals were both the main reactive substances, which promoted the remarkable catalytic desulfurization performance of POM@MIL‐101@CF. Therefore, this kind of supported POM catalyst is simple to prepare and green‐friendly in raw materials, as well as the strong binding between POM and CF with the bridging effects of MIL‐101 makes it better adapt to the needs of actual industrial production and has a broad application prospect in practical desulfurization applications.