Zinc Tungstate Supported on Graphitic Carbon Nitride for Efficient Oxidative Desulfurization of Oil

Applied Organometallic Chemistry, Journal Year: 2025, Volume and Issue: 39(5)

Published: April 10, 2025

ABSTRACT Binary metal oxides hold immense potential in catalysis; however, their efficient utilization remains a significant challenge. Zinc tungstate (ZnWO 4 ) was loaded onto graphitic carbon nitride (g‐C 3 N via highly and energy‐saving room‐temperature stirring method to prepare ZnWO /g‐C (ZnWO/CN) composite with sandwich structure for oxidative desulfurization. The appearance, structure, stability of ZnWO/CN were characterized by X‐ray diffraction (XRD), Fourier transform infrared (FT‐IR) spectroscopy, photoelectron spectroscopy (XPS), some other characterization tests. Results demonstrate the successful incorporation nanoparticles within layered porous g‐C , achieving dispersed state. In addition, exhibits significantly higher specific surface area enhanced compared pure effectively mitigates propensity towards agglomeration. catalytic performance evaluation indicates that (30 wt%) achieves exceptional desulfurization efficiency at lower preparation cost. A near‐complete sulfur removal rate 99.89% achieved 180 min under optimized conditions ( m (catalyst) 20.00 mg, V (ILs)/ (Oil) 1/20, (H 2 O 0.2 mL, 80°C). Furthermore, catalyst retained high even after eight consecutive cycles. Notably, adsorption affinity reactants enabled reduction ionic liquid dosages. By combining testing, quenching experiment, EPR test, reaction mechanism oxidation ultimately obtained. this provides research ideas new supported catalysts.

Language: Английский

Chemistry, generation and regulation of reactive species in persulfate-based advanced oxidation processes

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 163588 - 163588

Published: May 1, 2025

Language: Английский