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首页> 外文期刊>Journal of Hazardous Materials >Preparation of mesoporous Cs-POM@MOF-199@MCM-41 under two different synthetic methods for a highly oxidesulfurization of dibenzothiophene
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Preparation of mesoporous Cs-POM@MOF-199@MCM-41 under two different synthetic methods for a highly oxidesulfurization of dibenzothiophene

机译：用两种不同的合成方法制备介孔Cs-POM @ MOF-199 @ MCM-41，用于二苯并噻吩的高度氧化物硫化

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摘要

Two different synthetic methods, the direct method and the substitution method, were used to synthesize the Cs-POM@MOF-199@MCM-41 (Cs-PMM), in which the modified heteropolyacid with cesium salt has been encapsulated into the pores with the mixture of MOF and MCM-41. The structural properties of the as-prepared catalysts were characterized using various analytical techniques: powder X-ray diffraction, FT-IR, SEM, TEM, XPS and BET, confirming that the Cs-POM active species retained its Keggin structure after immobilization. The substitution method of Cs-PMM exhibited more excellent catalytic performance for oxidative desulfurization of dibenzothiophene in the presence of oxygen. Under optimal conditions, the DBT conversion rate reached up to 99.6% and could be recycled 10 times without significant loss of catalytic activity, which is mainly attributed to the slow leaching of the active heteropolyacid species from the strong fixed effect of the mixture porous materials. (c) 2017 Published by Elsevier B.V.
机译：使用直接合成法和取代合成法这两种不同的合成方法，合成了Cs-POM @ MOF-199 @ MCM-41（Cs-PMM）。 MOF和MCM-41的混合物。使用各种分析技术对制备的催化剂的结构特性进行了表征：粉末X射线衍射，FT-IR，SEM，TEM，XPS和BET，证实了固定化后Cs-POM活性物种保留了其Keggin结构。 Cs-PMM的取代方法在氧气存在下对二苯并噻吩的氧化脱硫表现出更优异的催化性能。在最佳条件下，DBT转化率可达99.6％，可以循环使用10次而不会显着降低催化活性，这主要是由于混合多孔材料的强固定作用导致活性杂多酸种类的缓慢浸出。 （c）2017年由Elsevier B.V.

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  • 来源
    《Journal of Hazardous Materials》 |2017年第5期|208-216|共9页
  • 作者

    Li Si-Wen; Li Jia-Rong; Jin Qi-Ping; Yang Zhi; Zhang Rong-Lan; Gao Rui-Min; Zhao Jian-She;

  • 作者单位

    Northwest Univ Xian, Coll Chem & Mat Sci, Shaanxi Key Lab Physicoinorgan Chem, Minist Educ,Key Lab Synthet & Nat Funct Mol Chem, Xian 710127, Shaanxi, Peoples R China;

    Northwest Univ Xian, Coll Chem & Mat Sci, Shaanxi Key Lab Physicoinorgan Chem, Minist Educ,Key Lab Synthet & Nat Funct Mol Chem, Xian 710127, Shaanxi, Peoples R China;

    Northwest Univ Xian, Coll Chem & Mat Sci, Shaanxi Key Lab Physicoinorgan Chem, Minist Educ,Key Lab Synthet & Nat Funct Mol Chem, Xian 710127, Shaanxi, Peoples R China;

    Northwest Univ Xian, Coll Chem & Mat Sci, Shaanxi Key Lab Physicoinorgan Chem, Minist Educ,Key Lab Synthet & Nat Funct Mol Chem, Xian 710127, Shaanxi, Peoples R China;

    Northwest Univ Xian, Coll Chem & Mat Sci, Shaanxi Key Lab Physicoinorgan Chem, Minist Educ,Key Lab Synthet & Nat Funct Mol Chem, Xian 710127, Shaanxi, Peoples R China;

    Shaanxi Yanchang Petr Grp Corp Ltd, Res Inst, Xian 710075, Peoples R China;

    Northwest Univ Xian, Coll Chem & Mat Sci, Shaanxi Key Lab Physicoinorgan Chem, Minist Educ,Key Lab Synthet & Nat Funct Mol Chem, Xian 710127, Shaanxi, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Cesium salt modified heteropolyacid; Metal-organic framework; MCM-41 molecular sieve; Oxidative desulfurization; Recyclability;

    机译：铯盐改性杂多酸;金属有机骨架;MCM-41分子筛;氧化脱硫;可回收性;

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