Citation: Ezzat Rafiee, Maryam Khodayari. Synthesis and characterization of PMoV/Fe₃O₄/g-C₃N₄from melamine: An industrial green nanocatalyst for deep oxidative desulfurization[J]. Chinese Journal of Catalysis, ;2017, 38(3): 458-468. doi: 10.1016/S1872-2067(16)62548-2 shu

Synthesis and characterization of PMoV/Fe₃O₄/g-C₃N₄from melamine: An industrial green nanocatalyst for deep oxidative desulfurization

Ezzat Rafiee ^a,b, ,
Maryam Khodayari ^a

a Faculty of Chemistry, Razi University, Kermanshah 67149, Iran;
b Institute of Nano Science and Nano Technology, Razi University, Kermanshah 67149, Iran

Received Date: 17 October 2016
Revised Date: 25 November 2016

A facile approach to the preparation of a novel magnetically separable H₅PMo₁₀V₂O₄₀/Fe₃O₄/g-C₃N₄ (PMoV/Fe₃O₄/g-C₃N₄) nanocomposite by chemical impregnation is demonstrated. The prepared nanocomposite was characterized and its acidity was measured by potentiometric titration. PMoV/Fe₃O₄/g-C₃N₄ showed high catalytic activity in the selective oxidative desulfurization of sulfides to their corresponding sulfoxides or sulfones. The catalytic oxidation of a dibenzothiophene (DBT)-containing model oil and that of real oil were also studied under optimized conditions. In addition, the effects of various nitrogen compounds, as well as the use of one- and two-ring aromatic hydrocarbons as co-solvents, on the catalytic removal of sulfur from DBT were investigated. The catalyst was easily separated and could be recovered from the reaction mixture by using an external magnetic field. Additionally, the remaining reactants could be separated from the products by simple decantation if an appropriate solvent was chosen for the extraction. The advantages of this nanocatalyst are its high catalytic activity and reusability; it can be used at least four times without considerable loss of activity.
- Graphitic carbon nitride,
- Nanocomposite,
- Melamine,
- Heteropoly acid,
- Oxidative desulfurization,
- Oil
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通讯作者: 陈斌, bchen63@163.com

Synthesis and characterization of PMoV/Fe₃O₄/g-C₃N₄from melamine: An industrial green nanocatalyst for deep oxidative desulfurization