期刊
NEW JOURNAL OF CHEMISTRY
卷 45, 期 20, 页码 9264-9273出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0nj05926a
关键词
-
资金
- National Natural Science Foundation of China [21671157, 21371143]
In this study, novel magnetic core-shell composites Fe3O4@UiO-66-HPA were successfully prepared and exhibited supreme catalytic performance in an ODS system of simulated fuel. The composites can be recycled ten times without apparent loss of catalytic performance. The ODS process follows a pseudo-first-order kinetic model according to the kinetic study.
In this study, the novel magnetic core-shell composites Fe3O4@UiO-66-HPA, consisting of magnetic Fe3O4@UiO-66 and vanadium-substituted Keggin-type heteropolyacid active species supported by Zr-MOF, were successfully prepared via a one-pot method and fully investigated using FT-IR, XRD, SEM, TEM, TEM-EDX, ICP, VSM and N-2 adsorption-desorption isotherms. The synthetic composites were employed as catalysts in an ODS system of simulated fuel under oxygen. The catalyst Fe3O4@UiO-66-PW9V3 exhibits the supreme catalytic performance in this work, with sulfur removal of 99.85% and a TOF value of 31.16 h(-1) under optimal reaction conditions (0.2 g catalyst mass, 60 degrees C reaction temperature, 500 rpm stirring speed, 1 L min(-1) oxidant quantity and 180 min reaction time), and can also be recycled ten times without apparent loss of catalytic performance. Furthermore, the kinetic study shows that the ODS process accords with the pseudo-first-order model.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据