...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental Science & Technology >Synthesis and CO_2 Adsorption Properties of Molecularly Imprinted Adsorbents
【24h】

Synthesis and CO_2 Adsorption Properties of Molecularly Imprinted Adsorbents

机译：分子印迹吸附剂的合成及CO_2吸附性能

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A series of molecularly imprinted adsorbents of CO_2 were developed by molecular self-assembly procedures, using ethanedioic acid, acrylamide, and ethylene glycol dimethacrylate as template, functional monomer, and cross-linker, respectively. Textural properties of these adsorbents were characterized by N_2 adsorption experiment, thermo-gravimetric analysis, and Fourier transform infrared spectroscopy. CO_2 adsorption capacities of adsorbents were investigated by thermo-gravimetric balance under 15% CO_2/ 85% Ar atmosphere. Adsorption selectivity of CO_2 was studied by fixed-bed adsorption/desorption experiments. All the adsorbents displayed good thermal stability at 200 ℃. Among them, MlPlb, with the higher amine content, exhibited the largest CO_2 capacity, which maintained steady after SO adsorption-desorption cycles. Although MIP3 showed the highest specific surface, the CO_2 capacity was lower than that of MlPlb. CO_2 adsorption mechanism of molecularly imprinted adsorbents was determined to be physical sorption according to the adsorption enthalpies integrated from the DSC heatflow profiles. The calculated separation factors of CO_2 under 15% CO_2/85% N_2 atmosphere were above 100 for all adsorbents.
机译：通过分子自组装方法分别使用乙二酸，丙烯酰胺和乙二醇二甲基丙烯酸酯作为模板，功能单体和交联剂，开发了一系列CO_2分子印迹吸附剂。通过N_2吸附实验，热重分析和傅里叶变换红外光谱对这些吸附剂的质构性质进行了表征。在15％CO_2 / 85％Ar气氛下通过热重平衡法研究了吸附剂对CO_2的吸附能力。通过固定床吸附/解吸实验研究了CO_2的吸附选择性。在200℃时，所有吸附剂均具有良好的热稳定性。其中，具有较高胺含量的MIPLb表现出最大的CO 2容量，在SO吸附-解吸循环后保持稳定。尽管MIP3显示出最高的比表面积，但CO 2容量低于MIP1b。根据DSC热流曲线积分的吸附焓，确定分子印迹吸附剂的CO_2吸附机理为物理吸附。对于所有吸附剂，在15％CO_2 / 85％N_2气氛下计算出的CO_2分离系数均大于100。

著录项

  • 来源
    《Environmental Science & Technology》 |2012年第3期|p.1789-1795|共7页
  • 作者

    Yi Zhao; Yanmei Shen; Lu Bai; Rongjie Hao; Liyan Dong;

  • 作者单位

    School of Environmental Science & Engineering, North China Electric Power University, Baoding 071003, People's Republic of China;

    School of Environmental Science & Engineering, North China Electric Power University, Baoding 071003, People's Republic of China;

    School of Environmental Science & Engineering, North China Electric Power University, Baoding 071003, People's Republic of China;

    School of Environmental Science & Engineering, North China Electric Power University, Baoding 071003, People's Republic of China;

    School of Environmental Science & Engineering, North China Electric Power University, Baoding 071003, People's Republic of 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

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