高等学校化学学报 ›› 2017, Vol. 38 ›› Issue (2): 225.doi: 10.7503/cjcu20160584

• 物理化学 • 上一篇    下一篇

Mg-MOF-74对CO2/H2O的吸附性能

杜涛, 龙渊, 汤琦, 李生璐, 刘丽影()   

  1. 东北大学国家环境保护生态工业重点实验室, 沈阳 110819
  • 收稿日期:2016-08-16 出版日期:2017-02-10 发布日期:2017-01-12
  • 作者简介:联系人简介: 刘丽影, 女, 博士, 副教授, 主要从事CO2变压吸附分离研究. E-mail: liuly@smm.neu.edu.cn
  • 基金资助:
    国家自然科学基金(批准号: 51474067, 51406029)、 教育部基本科研业务费(批准号: N150204015)、 辽宁省教育厅重点实验室基础研究项目(批准号: LZ2015032)和国家重点研究发展计划项目(批准号: 2016YFB0601301, 2016YFB0601305)资助

Adsorption Property of Mg-MOF-74 for CO2/H2O

DU Tao, LONG Yuan, TANG Qi, LI Shenglu, LIU Liying*()   

  1. State Environmental Protection Key Laboratory of Eco-Industry, Northeastern University, Shenyang 110819, China
  • Received:2016-08-16 Online:2017-02-10 Published:2017-01-12
  • Contact: LIU Liying E-mail:liuly@smm.neu.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(Nos.51474067, 51406029), the Fundamental Research Funds of the Ministry of Education, China(No.N150204015), the Basic Research Project of Key Laboratory of Education Department of Liaoning Province, China(No.LZ2015032) and the National Key Research and Development Project of China(Nos.2016YFB0601301, 2016YFB0601305)

摘要:

以Mg(NO3)2·6H2O和2,5-二羟基对苯二甲酸为原料, 采用溶剂热法制备了金属有机骨架材料Mg-MOF-74. 利用X射线衍射(XRD)、 红外光谱(FTIR)和扫描电子显微镜(SEM)等测试手段对其结构、 形貌和性能进行了分析, 并利用自制穿透实验装置研究了产物吸附CO2/H2O的性能. 结果表明: 合成的样品纯度高, 结构完整, 形貌规则有序, 具有较高的CO2吸附量. 双组分CO2/H2O穿透实验结果证实, 在水蒸气存在情况下, 与沸石13X相比, Mg-MOF-74仍具有较高的CO2吸附能力, 可用于分离高湿烟道气中的CO2.

关键词: Mg-MOF-74, 穿透实验, CO2/H2O双组分吸附

Abstract:

Mg-MOF-74 was synthesized through a solvothermal method using Mg(NO3)2·6H2O and 2,5-dihydroxyterephthalic acid as raw materials. The product was then characterized via X-ray diffraction(XRD), Fourier transform infrared(FTIR) spectroscopy, scanning electron microscopy(SEM) and breakthrough experiments. The results show that pure Mg-MOF-74 with complete structure, regular morphology and excellent CO2 adsorption properties was prepared. It is confirmed in breakthrough experiments that the as-synthesized Mg-MOF-74 maintains a high CO2 adsorption properties in the presence of H2O. Therefore, the prepared Mg-MOF-74 is a suitable candidate for capturing CO2 from wet flue gas stream.

Key words: Mg-MOF-74, Breakthrough experiment, CO2/H2O binary adsorption

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