化工进展 ›› 2019, Vol. 38 ›› Issue (08): 3788-3794.DOI: 10.16085/j.issn.1000-6613.2018-2064

• 材料科学与技术 • 上一篇    下一篇

MIL-101(Cr)开式吸附性能实验

李倩文1(),赵惠忠1(),王朝阳1,吴天浩1,张敏2   

  1. 1. 上海海事大学商船学院,上海 201306
    2. 上海海洋大学食品学院,上海 201306
  • 收稿日期:2018-10-18 出版日期:2019-08-05 发布日期:2019-08-05
  • 通讯作者: 赵惠忠
  • 作者简介:李倩文(1994—),女,硕士研究生,研究方向为太阳能空气取水技术。E-mall:qianwenlc@foxmail.com
  • 基金资助:
    国家自然科学基金面上项目(50976073);上海市教育委员会科研创新重点项目(13ZZ121)

Research on the open adsorption property of MIL-101(Cr)

Qianwen LI1(),Huizhong ZHAO1(),Zhaoyang WANG1,Tianhao WU1,Min ZHANG2   

  1. 1. Merchant Marine College, Shanghai Maritime University, Shanghai 201306, China
    2. College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
  • Received:2018-10-18 Online:2019-08-05 Published:2019-08-05
  • Contact: Huizhong ZHAO

摘要:

采用水热合成法制备水热稳定金属有机骨架MIL-101(Cr),基于太阳能吸附式空气取水选取不同的实验工况,将MIL-101(Cr)、细孔硅胶作为研究对象,相对湿度控制在50%、温度范围5~45℃条件下,测试并对比了MIL-101(Cr)与细孔硅胶的吸附性能。实验表明,35℃、50%RH条件下,吸附过程进行1000min,MIL-101(Cr)水吸附量为22.05g/100g,其吸附量相比细孔硅胶提高93%左右;当系统平衡时,MIL-101(Cr)有效平均吸附速率相比细孔硅胶提高120%左右。此外,在相对湿度(RH)50%、温度范围5~45℃条件下,MIL-101(Cr)的平衡吸附量在11.40~23.47g/100g之间。在所控温度下,MIL-101(Cr)在25℃时平衡吸附量最大,在5℃时平衡吸附量最小,25℃时MIL-101(Cr)的平衡吸附量相比5℃时提高106%左右。该实验可以为四季工况不同温度下MIL-101(Cr)用于太阳能吸附式空气取水提供基础数据。

关键词: MIL-101(Cr), 太阳能, 吸附, 平衡, 吸附量, 空气取水

Abstract:

The hydrothermal stable metal-organic framework MIL-101(Cr) was directly synthesized by hydrothermal method. Different experimental conditions were taken based on solar adsorption extracting water from air. The adsorption performance of MIL-101(Cr) was tested and compared to that of the micro-pore silica gel under the condition of open adsorption. The effects of temperature on the adsorption property were tested in the range of 5—45℃ and under the equal relative humidity 50%.The experimental results show that at temperature of 35℃ and relative humidity of 50%, the adsorption capacity of MIL-101(Cr) was 22.05g/100g within 1000minutes, an increase of 93% compared to that of the micro-pore silica gel. And the effective average equilibrium adsorption rate of MIL-101(Cr) was increased by 120% compared to the silica gel . In addition, in the environment with relative humidity 50%, temperature range of 5—45℃, the equilibrium adsorption capacity of MIL-101 (Cr) was among 11.40—23.47g/100g. The equilibrium adsorption capacity of MIL-101 (Cr) was the highest at 25℃, and the minimum was at 5℃.The value at 25℃ was about 106% higher than that at 5℃. This experiment can provide basic data for the usage of MIL-101(Cr) in solar adsorption extracting water from air at all seasons.

Key words: MIL-101(Cr), solar energy, adsorption, equilibrium, adsorption capacity, water extraction from air

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