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Photooxidative-Extractive Deep Desulfurization of Diesel using Cu-Fe/TiO2 and Eutectic Ionic Liquid

Mod Zaid, Hayyiratul Fatimah and Chong, Fai Kait and Abdul Mutalib, Mohamed Ibrahim (2015) Photooxidative-Extractive Deep Desulfurization of Diesel using Cu-Fe/TiO2 and Eutectic Ionic Liquid. [Citation Index Journal]

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Abstract

An efficient photooxidative–extractive system for deep desulfurization of model fuel and actual diesel fuel was explored. A series of bimetallic Cu–Fe/TiO2 photocatalysts was synthesized using sol–gel hydrothermal method and characterized using thermogravimetric analysis (TGA), X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM) coupled with energy dispersive X-ray analysis (EDX), high resolution transmission electron microscopy (HRTEM) and diffuse reflectance UV–visible spectroscopy (DR-UV–Vis). The photocatalysts were evaluated for photooxidative–extractive deep desulfurization of model oil (100, 300 and 500 ppm dibenzothiophene in dodecane) and actual diesel fuel. 2.0 wt% Cu–Fe/TiO2 photocatalyst was identified as the most efficient photocatalyst for the conversion of sulfur species under mild conditions in the presence of hydrogen peroxide (H2O2:S molar ratio of 4) as oxidant and eutectic based ionic liquid as extractant. The sulfur conversion in both model oil and actual diesel fuel reached 100%. The removal of sulfur species from both model oil and actual diesel fuel was done by two times extraction with a removal of 97.06% and 78.93%, respectively in the first run and 2.94% and 21.07%, respectively in the second run. The photocatalyst was able to be recycled for six cycles with an average performance of 99.75%.

Item Type:Citation Index Journal
Impact Factor:3.3
Subjects:Q Science > QD Chemistry
Academic Subject One:Photocatalysis
Academic Subject Two:Ionic Liquids
Academic Subject Three:Deep desulfurization
Departments / MOR / COE:Departments > Fundamental & Applied Sciences
ID Code:11709
Deposited By: Assoc. Prof. Dr. Fai Kait Chong
Deposited On:08 Sep 2015 03:52
Last Modified:08 Sep 2015 03:52

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