...
首页> 外文期刊>Separation and Purification Technology >Mixed matrix membranes incorporated with three-dimensionally ordered mesopore imprinted (3DOm-i) zeolite
【24h】

Mixed matrix membranes incorporated with three-dimensionally ordered mesopore imprinted (3DOm-i) zeolite

机译:混合基质膜与三维有序的中孔印记(3Dom-1)沸石

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       

摘要

MFI and LTA zeolites were synthesized inside three-dimensionally ordered mesoporous (3DOm) carbon. After the removal of the carbon, a highly crystalline 3DOm-imprinted zeolite with tunable and ordered mesopores was obtained. The nominal mesopore size can be finely controlled from 5 to 15 nm by changing the cage size of the 3DOm carbon. Under different synthesis conditions, the crystal size of the 3DOm-imprinted (3DOm-i) MFI was tuned from approximately 100 nm to several micrometers. The 3DOm-i zeolite was mesoporous and exhibited a spherical shape with a rough external surface. With the synthesis of 3DOm-i zeolites, mixed matrix membranes (MMMs) were prepared by incorporating them into a commercial polyimide matrix (i.e., Matrimid (R) 5218). Both MFI- and LTA-containing MMMs exhibited good adhesion between the zeolites and polymer because of their imprinted mesopore structure and rough external surface. Also, both MMMs exhibited a substantial increase in permeability to all the gas penetrants used in this work (except for NF3), resulting in an excellent N-2/NF3 separation efficiency.
机译:在三维有序的介孔(3Dom)碳内合成MFI和LTA沸石。除去碳后,获得高度结晶的3族印迹沸石,具有可调谐和有序的中孔。通过改变3姆碳的笼尺寸,可以通过5至15nm精细地控制标称缺陷尺寸。在不同的合成条件下,3Dom印迹(3Dom-1)MFI的晶体尺寸从大约100nm到几微米调谐。 3Dom-I沸石是介孔的,并且具有粗糙的外表面的球形形状。通过合成3Dom-i沸石,通过将它们掺入商业聚酰亚胺基质中来制备混合基质膜(MMM)(即,基质(R)5218)。含有MFI和LTA的MMMS均在沸石和聚合物之间表现出良好的粘附性,因为它们的印迹缺陷结构和外表面粗糙。而且,两种MMMS都表现出这项工作中使用的所有气体渗透剂的渗透性大幅增加(除了NF3外),导致优异的N-2 / NF3分离效率。

著录项

  • 来源
  • 作者单位

    Chung Ang Univ Dept Chem Engn &

    Mat Sci 84 Heukseok Ro Seoul 06974 South Korea;

    KRICT Res Ctr Nanocatalysts Daejeon 305600 South Korea;

    KRICT Res Ctr Nanocatalysts Daejeon 305600 South Korea;

    Sogang Univ Dept Chem &

    Biomol Engn 35 Baekbeom Ro Seoul 04107 South Korea;

    KRICT Carbon Resources Inst Greenhouse Gas Separat &

    Recovery Grp 141 Gajeongro Yuseong 34114 Daejeon South Korea;

    KRICT Carbon Resources Inst Greenhouse Gas Separat &

    Recovery Grp 141 Gajeongro Yuseong 34114 Daejeon South Korea;

    KRICT Carbon Resources Inst Greenhouse Gas Separat &

    Recovery Grp 141 Gajeongro Yuseong 34114 Daejeon South Korea;

    Sogang Univ Dept Chem &

    Biomol Engn 35 Baekbeom Ro Seoul 04107 South Korea;

    KRICT Carbon Resources Inst Greenhouse Gas Separat &

    Recovery Grp 141 Gajeongro Yuseong 34114 Daejeon South Korea;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 分离过程;气化工艺;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号