Oxidative desulfurization of fuel oil catalyzed by a carbon nitride supported phosphotungstic acid based dicationic ionic liquid

Abstract

In this study, a novel phosphotungstic acid based dicationic ionic liquid [C2(MIM)2]PW12O40 was successfully prepared and immobilized on graphitic carbon nitride (g-C3N4). The supported catalysts wt% [C2(MIM)2]PW12O40/g-C3N4 (wt=3%, 10%, 30%,...

Cu(ii) coordinated N-bearing heteropolyacid-based poly(ionic liquid)s for allylic oxidation of cyclohexene to 2-cyclohexene-1-one with O2under mild conditions

“…39 The W 4f and P 2p spectra indicated the presence of phosphotungstic acid anions. 40,41 In the C 1s spectrum, two broad peaks at the binding energy of 286.6 eV and 284.8 eV were separately assigned to C–N/N–CN and C–C/C–H in the organic moiety of the 3% Cu-PDVD-PW catalyst. The N 1s spectrum displayed two peaks at the binding energy of 401.8 eV and 399.8 eV, which ascribed to N in the imidazole ring and amino group, respectively.…”

Perspectives on Advances in the Catalytic Desulfurization and Denitrogenation of Transportation Fuel Oils Using Graphitic Carbon Nitride and Boron Nitride

“…83 The utilization rate of electrons along with the formation of a heterojunction as well as the dispersion of BPMO as the carrier is increased by g-C 3 N 4 . Liu et al 90 GCMS analysis revealed that DBT oxidizes to corresponding sulfones. 91 Huang et al 92 used silica gel as the template for synthesizing mesoporous g-C 3 N 4 via a hard template method.…”

“…Liu et al 90 GCMS analysis revealed that DBT oxidizes to corresponding sulfones. 91 Huang et al 92 used silica gel as the template for synthesizing mesoporous g-C 3 N 4 via a hard template method. Upon treatment of the precursor powder at different temperatures, i.e., 500, 550, and 600 °C fo 4 h, the samples were named accordingly as CN-500, CN-550, and CN-600.…”

“…The utilization rate of electrons along with the formation of a heterojunction as well as the dispersion of BPMO as the carrier is increased by g-C 3 N 4 . Liu et al prepared a phosphotungstic acid-based dicationic IL [C 2 (MIM) 2 ]­PW 12 O 40 and immobilized it on graphitic g-C 3 N 4 . To achieve deep desulfurization, the supported catalyst x % [C 2 (MIM) 2 ]­PW 12 O 40 /g-C 3 N 4 aqueous 30 wt % H 2 O 2 was used as an oxidant.…”

“…Different sulfide catalytic activities were DBT > 4,6-DMDBT > BT. GCMS analysis revealed that DBT oxidizes to corresponding sulfones . Huang et al used silica gel as the template for synthesizing mesoporous g-C 3 N 4 via a hard template method.…”