高等学校化学学报 ›› 2019, Vol. 40 ›› Issue (7): 1365.doi: 10.7503/cjcu20180831

• 研究论文: 无机化学 • 上一篇    下一篇

微通道连续合成UiO-66系列改性MOF材料

盛炳琛1, 李从1, 刘颖雅1, 王安杰1, 王瑶1(), 张箭2, 刘伟旭1   

  1. 1. 大连理工大学化工学院, 大连 116024
    2. 中国科学院大连化学物理研究所催化与新材料研究中心, 大连 116023
  • 收稿日期:2018-12-12 出版日期:2019-07-10 发布日期:2019-07-12
  • 作者简介:王 瑶, 女, 博士, 教授, 主要从事反应过程强化技术、 微通道反应器及高性能催化剂等方面的研究. E-mail: wangyao@dlut.edu.cn
  • 基金资助:
    科技部国家重点研究发展计划(批准号: 2016YFE0109800)、 国家自然科学基金(批准号: 21473017, 21373215)、 中央高校基本科研业务费(批准号: DUT17JC20)和精细化工国家重点实验室开放课题(批准号: KF1405)资助.

Microfluidic Synthesis of UiO-66 Metal-organic Frameworks Modified with Different Functional Groups

SHENG Bingchen1, LI Cong1, LIU Yingya1, WANG Anjie1, WANG Yao1,*(), ZHANG Jian2, LIU Weixu1   

  1. 1. School of Chemical Engineering, Dalian University of Technology, Dalian116024, China
    2. Laboratory of Catalysts and New Materials, Dalian Institute of Chemical Physics,Chinese Academy of Sciences, Dalian 116023, China
  • Received:2018-12-12 Online:2019-07-10 Published:2019-07-12
  • Contact: WANG Yao E-mail:wangyao@dlut.edu.cn
  • Supported by:
    † Supported by the National Key R&D Program of China(No.2016YFE0109800), the National Natural Science Foundation of China(Nos.21473017, 21373215), the Fundamental Research Funds for the Central Universities, China(No.DUT17JC20) and the Open Project of the State Key Laboratory of Fine Chemicals, China(No.KF1405).

摘要:

采用内交叉指型微反应器连续合成UiO-66材料. 连续微通道法强化了物料之间的混合, 极大提高了生产效率, 晶体产物呈六面体形, 粒径在100 nm以下. 考察了温度、 总进料流量和停留时间等条件对合成过程及产物的影响. 结果表明, 升高温度有助于晶粒的生长; 随着总进料流量增大, 晶体粒径减小; 晶体的形成需要一定的停留时间, 超过该停留时间, 晶体粒径不再增大. 通过优化实验条件, 可以实现系列纳米级UiO-66-X材料(X=NH2, NO2, Br)的连续合成.

关键词: 金属有机框架, UiO-66, 纳米材料, 微通道连续合成

Abstract:

Zirconium based metal-organic framework UiO-66 was synthesized continuously by microfluidic method. Compared with the traditional solvothermal synthesis in batch reactors, microfluidic synthesis is more efficient. It has the advantages in highly efficient mixing and heat transfer, thus lead to enhanced reaction rates. Microfluidic synthesis can obtain uniform hexahedral crystalline products in nanometer range(less than 100 nm). The influences of temperature, total flowrate and residence time on the obtained products were investigated. Higher temperature benefited the growth of crystal. When flowrate increased, crystal sizes of UiO-66 synthesized by microfluidic method decreased. Crystal growth required sufficient residence time(20 min), but if the residence time was prolonged further, the crystal particle size would not change any more. By optimizing the synthetic parameters, UiO-66 modified with different functional groups, UiO-66-X(X=NH2, NO2, Br), could be synthesized continuously by microfluidic synthesis.

Key words: Metal-organic framework, UiO-66, Nanomaterial, Microfluidic synthesis

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