Ionic Liquid Promotes High Dispersion of V<sub>2</sub>O<sub>5</sub> on 3D Porous g-C<sub>3</sub>N<sub>4</sub> Carrier to Enhance Catalytic Oxidative Desulfurization Performance
Suhang Xun, Rongmin Le, Chenchao Hu, Desheng Liu, Songmei Wang, Minqiang He, Wenshuai Zhu, Huaming Li
Abstract
In this work, a series of supported catalysts V 2 O 5 /3D g-C 3 N 4 were prepared by a solvothermal method and programmed calcination, where a vanadium-based ionic liquid (V-IL) [(C 8 H 17 ) 3 NCH 3 ] 3 H 3 V 10 O 28 was used as the vanadium source and 3D porous carbon nitride (3D g-C 3 N 4 ) acted as the carrier. The detailed structural and compositional characterization results show that the use of V-IL promotes the high dispersion of V 2 O 5 on the carrier and effectively avoids the problem of agglomeration. Therefore, the catalytic oxidative desulfurization activity of V 2 O 5 /3D g-C 3 N 4 is greatly enhanced, and the content of dibenzothiophene in model oil can be effectively reduced to 1.2 ppm under appropriate conditions. The recycling capacity and the possible process of the oxidative desulfurization were discussed.