Semnan University Press Applied Chemistry Today 2981-2437 20 76 2025 11 22 Facile Hydrothermal Fabrication of Nanocomposite based on natural zeolite and its Application in Catalytic Oxidative Desulfurization of Benzothiophene Facile Hydrothermal Fabrication of Nanocomposite based on natural zeolite and its Application in Catalytic Oxidative Desulfurization of Benzothiophene 117 134 10304 10.22075/chem.2025.38474.2380 FA Shima H. Khabbaz Department of Chemistry, Semnan University, P.O. Box 35131-19111, Semnan, Iran 0009-0006-5885-4334 Ahmad Bagheri Department of Chemistry, Semnan University, P.O. Box 35131-19111, Semnan, Iran 0000-0003-4641-4308 Mehdi Mousavi-Kamazani Department of Nanotechnology, Faculty of New Sciences and Technologies, Semnan University, Semnan, Iran 0000-0003-1456-6788 Journal Article 2025 07 27 In this study, a Mn₂V₂O7/Fe₀.₁₁V₂O₅.₁₆/zeolite nanocomposite was successfully synthesized via a hydrothermal method. The zeolite support was surface-modified with cetyltrimethylammonium bromide (CTAB) as cationic surfactant to enhance its adsorption properties and dispersion behavior. This composite was synthesized with a 1:1 ratio catalyst (MnFe2O7/Fe₀.₁₁V₂O₅.₁₆) based on modified zeolite. The final nanocomposite was characterized using FTIR, XRD, and SEM analyses, which confirmed the successful formation of a well-integrated and uniformly distributed Mn₂V₂O7 and Fe₀.₁₁V₂O₅.₁₆ phases on the modified zeolite surface. The synthesized nanocomposite was then applied as a catalyst for the oxidative desulfurization of benzothiophene in model fuel, achieving a sulfur removal efficiency of 53% under optimized conditions. To evaluate the reaction mechanism, kinetic studies were performed by fitting the experimental data to zero-, first-, and second-order models. The results indicated that the desulfurization reaction followed a first-order kinetic model with an excellent correlation coefficient (R² = 0.9385), suggesting that the reaction rate is directly proportional to the benzothiophene concentration. These findings demonstrate that the CTAB-modified Mn₂V₂O7/Fe₀.₁₁V₂O₅.₁₆/zeolite nanocomposite is a promising material for effective fuel desulfurization. In this study, a Mn₂V₂O7/Fe₀.₁₁V₂O₅.₁₆/zeolite nanocomposite was successfully synthesized via a hydrothermal method. The zeolite support was surface-modified with cetyltrimethylammonium bromide (CTAB) as cationic surfactant to enhance its adsorption properties and dispersion behavior. This composite was synthesized with a 1:1 ratio catalyst (MnFe2O7/Fe₀.₁₁V₂O₅.₁₆) based on modified zeolite. The final nanocomposite was characterized using FTIR, XRD, and SEM analyses, which confirmed the successful formation of a well-integrated and uniformly distributed Mn₂V₂O7 and Fe₀.₁₁V₂O₅.₁₆ phases on the modified zeolite surface. The synthesized nanocomposite was then applied as a catalyst for the oxidative desulfurization of benzothiophene in model fuel, achieving a sulfur removal efficiency of 53% under optimized conditions. To evaluate the reaction mechanism, kinetic studies were performed by fitting the experimental data to zero-, first-, and second-order models. The results indicated that the desulfurization reaction followed a first-order kinetic model with an excellent correlation coefficient (R² = 0.9385), suggesting that the reaction rate is directly proportional to the benzothiophene concentration. These findings demonstrate that the CTAB-modified Mn₂V₂O7/Fe₀.₁₁V₂O₅.₁₆/zeolite nanocomposite is a promising material for effective fuel desulfurization. https://chemistry.semnan.ac.ir/article_10304_61a10e6abb1149ad9d08f303267f9bc4.pdf