This study aimed to improve the efficiency of sulfur removal from real and model liquid fuel, which is still a challenge. The heterogeneous nanocatalyst was synthesized successfully by supporting ([n-C₄H₉]₄N)₄H[PW₁₁FeO₃₉] (t-B.PWFe), on nickel oxide (NiO) as a new nanocomposite (t-B.PWFe/NiO) via sol–gel method. The catalytic activity of the nanocomposite was evaluated for oxidative–extractive desulfurization (OEDS) of model fuel and real gasoline using CH₃COOH/H₂O₂ as an oxidant. The synthesized nanocatalyst was characterized by means of X-ray diffraction, scanning electron microscopy, Fourier transform infrared, ultraviolet–visible spectroscopy (UV–Vis), and cyclic voltammetry. From UV–Vis, the bandgap energy is found. After OEDS treatments, the obtained results were specified that mercaptans and total sulfur content of real gasoline lowered with about 97% yield. Mechanisms, kinetic studies, and the effect of various operational parameters were evaluated, such as temperature and time on the oxidation reaction. The unique performance of the t-B.PWFe/NiO proved the extreme capability of this system for sulfur removal to achieve purified and clean gasoline.

中文翻译：

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tB.PWFe/NiO纳米复合材料的合成作为一种高效多相绿色纳米催化剂，用于催化氧化萃取脱硫汽油

这项研究旨在提高从真实和模型液体燃料中去除硫的效率，这仍然是一个挑战。通过在氧化镍 (NiO) 上负载 ([ n -C ₄ H ₉ ] ₄ N) ₄ H[PW ₁₁ FeO ₃₉ ] (tB.PWFe) 作为新型纳米复合材料 (tB.PWFe/NiO)成功合成了多相纳米催化剂) 通过溶胶-凝胶方法。使用 CH ₃ COOH/H ₂ O ₂评估纳米复合材料对模型燃料和实际汽油的氧化萃取脱硫 (OEDS) 的催化活性作为氧化剂。通过 X 射线衍射、扫描电子显微镜、傅里叶变换红外光谱、紫外-可见光谱 (UV-Vis) 和循环伏安法对合成的纳米催化剂进行了表征。从 UV-Vis，可以找到带隙能量。OEDS 处理后的结果表明，实际汽油的硫醇和总硫含量降低了约 97%。对机理、动力学研究和各种操作参数的影响进行了评估，例如温度和时间对氧化反应的影响。tB.PWFe/NiO 的独特性能证明了该系统在脱硫方面具有极高的能力，可实现净化和清洁汽油。