二苯并噻吩
催化作用
烟气脱硫
化学
多金属氧酸盐
动力学
X射线光电子能谱
化学工程
可重用性
金属有机骨架
无机化学
多相催化
傅里叶变换红外光谱
硫黄
核化学
有机化学
吸附
物理
软件
量子力学
计算机科学
工程类
程序设计语言
作者
Abdurrashid Haruna,Zulkifli Merican Aljunid Merican,Mohd Basyaruddin Abdul Rahman,Suleiman Gani Musa,Abdullah Al-Yaari
标识
DOI:10.1016/j.jssc.2023.124232
摘要
At present, metal-organic frameworks (MOFs) supported with Keggin-type polyoxometalates (POMs) have been proven to be an effective approach for the development of high-performing heterogeneous catalysts. Herein, a Keggin-type PW11Zn was encapsulated within MOF-808 (PW11[email protected]) through an environmentally friendly one-pot solvothermal approach. Several analytical techniques such as FTIR, XRD, BET, FE-SEM, and XPS were employed for the material's characterization. The newly developed catalysts demonstrated the synergistic properties of the pristine components and their catalytic activity has been tested for the oxidative desulfurization of dibenzothiophene (DBT) in liquid fuel oil. PW11[email protected] behaved as excellent catalyst and indicated a DBT conversion of 99.4% which is 1.145 times higher than MOF-808 with a DBT removal capacity of 86.85%. The reaction was optimized at ambient conditions of 50 °C, 30.0 mg of catalyst dose, and oxidant-to-sulfur (O/S) molar ratio of 5. The catalyst showed good reusability with no obvious loss in its initial activity after recycling for eight times. Also, the kinetics and thermodynamic analysis of the oxidation reaction was studied.
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