Immobilizing Highly Catalytically Molybdenum Oxide Nanoparticles on Graphene-Analogous BN: Stable Heterogeneous Catalysts with Enhanced Aerobic Oxidative Desulfurization Performance

Abstract

Supported molybdenum oxide nanoparticles (MoO x NPs) have attracted intensive interest due to their unique catalytic properties. Herein, MoO x NPs anchored on graphene-analogous boron nitride (g-BN) was prepared by a simple one-step method. The interaction between supports and NPs can be enhanced, and the size of MoO x NPs can be controlled during the immobilization process. Molecular oxygen (O 2 ) in the air can be activated effectively with the as-prepared heterogeneous catalyst. It is noteworthy that experimental results indicate that the controlled MoO x NP size and strong metal oxide support interaction are the two key factors which could help to exhibit high aerobic oxidative desulfurization activity. Moreover, sulfur removal of DBT can still reach 98.0% after recycling 11 times, which indicates that the supported catalyst has a good stability and recycling performance. Finally, the Mo(IV) and Mo(V) parts serve as the active sites to promote the production of superoxide− molybdenum species and the reaction pathway is further proposed.

Creation of Active Sites in MOF‐808(Zr) by a Facile Route for Oxidative Desulfurization of Model Diesel Oil

“…Desulfurization of fuel oil is of importance for reducing environmental pollution from the emission of sulfur oxides due to fuel combustion. With the stringent environmental regulations, the sulfur content in fuel oil must be reduced below 10 ppm in many countries . This means that the sulfur compounds like dibenzothiophene (DBT) and 4,6‐dimethyldibenzothiophene (4,6‐DMDBT) in fuel oil must be desulfurized.…”

Insight into the oxidative desulfurization of high-sulfur petroleum coke under mild conditions: a journey of vanadium-substituted Dawson-type phosphotungstic acid

“…With the development of the automobile industry, the demand for fuel is ever-increasing. However, the sulfur-containing compounds in the oil seriously pollute the ecological environment (Zhu et al 2016;Lu et al 2018;Yao et al 2018;Wang et al 2020;Li et al 2020Li et al , 2019bHao et al 2019;Han et al 2019;Liu et al 2020bLiu et al , 2020c. Petroleum coke, a by-product from the coking of slag oil in refining, shows versatile applications in the industry based on its quality.…”

Green aerobic oxidative desulfurization of diesel by constructing an Fe-Anderson type polyoxometalate and benzene sulfonic acid-based deep eutectic solvent biomimetic cycle

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