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首页> 外文期刊>Fuel >Synthesis of ionic-liquid-functionalized UiO-66 framework by post-synthetic ligand exchange for the ultra-deep desulfurization
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Synthesis of ionic-liquid-functionalized UiO-66 framework by post-synthetic ligand exchange for the ultra-deep desulfurization

机译：用合成配体交换对超深脱硫后的离子 - 液体官能化UIO-66框架的合成

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摘要

Ionic Liquids (IL) has been recently immobilized into the pores of metal-organic framework materials (MOFs) to prepare heterogeneous catalyst. However, the IL@MOFs composites are generally prepared by impregnation method, which is unstable in polar solvents. So, we design a new strategy to immobilize IL, and a novel Fenton-like catalyst [mim(CH2)(3)COO]FeCl4@UiO-66 has been prepared based on the post-synthetic ligand exchange (PSLE) between MOFs and monocarboxylic functional IL. The [mim(CH2)(3)COO]FeCl4@UiO-66 was exploited to act as an efficient heterogeneous catalyst for dibenzothiophene (DBT) oxidation in a biphasic system using H2O2 as the oxidant. Based on optimal conditions, the DBT removal efficiency reached up to 99.1%. Moreover, the heterogeneous catalyst had a good thermal and chemical stability, and the DBT removal efficiency still exhibited over 95% after 6 recycle runs. It is worth noting that the high DBT removal efficiency could be attributed to the synergistic effect between adsorptive and oxidative desulfurization, where [mim(CH2)(3)COO]FeCl4@UiO-66 is both an adsorbent and a catalyst.
机译：最近将离子液体（IL）固定在金属有机骨架材料（MOF）中的孔中以制备非均相催化剂。然而，IL @ MOFS复合材料通常通过浸渍方法制备，其在极性溶剂中不稳定。因此，我们设计了一种以防止IL的新策略，并基于MOF和MOF之间的合成后配体交换（PSLE）制备了一种新的FENTON催化剂[MIM（CH2）（3）COO] FECL4 @ UIO-66单羧结官能团IL。利用H 2 O 2作为氧化剂，利用[MIM（CH2）（3）COO] FECL4 @ UIO-66作为二苯甲酸二苯甲酸乙烯（DBT）氧化的有效的异质催化剂。基于最佳条件，DBT去除效率达到高达99.1％。此外，异质催化剂具有良好的热和化学稳定性，并且在6回收次数后，DBT去除效率仍然超过95％。值得注意的是，高DBT去除效率可归因于吸附和氧化脱硫之间的协同效应，其中[MIM（CH2）（3）COO] FECL4 @ UIO-66都是吸附剂和催化剂。

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  • 来源
    《Fuel》 |2020年第may15期|117336.1-117336.10|共10页
  • 作者

    Qi Zhaoyang; Qiu Ting; Wang Hongxing; Ye Changshen;

  • 作者单位

    Fuzhou Univ Fujian Prov Univ Coll Chem Engn Engn Res Ctr React Distillat Fuzhou 350108 Fujian Peoples R China;

    Fuzhou Univ Fujian Prov Univ Coll Chem Engn Engn Res Ctr React Distillat Fuzhou 350108 Fujian Peoples R China;

    Fuzhou Univ Fujian Prov Univ Coll Chem Engn Engn Res Ctr React Distillat Fuzhou 350108 Fujian Peoples R China;

    Fuzhou Univ Fujian Prov Univ Coll Chem Engn Engn Res Ctr React Distillat Fuzhou 350108 Fujian Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Ligand exchange; UiO-66; Monocarboxylic functional ionic liquid; Adsorption; Oxidative desulfurization;

    机译：配体交换;UIO-66;单羧酸官能离子液体;吸附;氧化脱硫;

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