Study on efficient separation of SF<sub>6</sub>/N<sub>2</sub> mixture using a hydrothermally stable metal-organic framework

CHANG Miao; LIU Lei; YANG Qingyuan; LIU Dahuan; ZHONG Chongli

doi:10.11949/0438-1157.20191133

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Study on efficient separation of SF₆/N₂ mixture using a hydrothermally stable metal-organic framework

Separation engineering | 更新时间：2026-07-24

- Study on efficient separation of SF₆/N₂ mixture using a hydrothermally stable metal-organic framework
- CIESC Journal Vol. 71, Issue 1, Pages: 320-328(2020)
- 作者机构：
  
  1. 北京化工大学有机无机复合材料国家重点实验室，北京 100029
  2. 天津工业大学分离膜与膜过程国家重点实验室，天津 300387
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20191133
  CLC： TQ 028.8
- Received：08 October 2019，
  
  Revised：2019-10-18，
  
  Online First：12 August 2020，
  
  Published：05 January 2020
- 稿件说明：
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常苗, 刘磊, 阳庆元, 刘大欢, 仲崇立. 水热稳定金属-有机骨架材料用于高效分离SF₆/N₂混合物的研究[J]. 化工学报, 2020, 71(1): 320-328 DOI: 10.11949/0438-1157.20191133.

CHANG Miao, LIU Lei, YANG Qingyuan, LIU Dahuan, ZHONG Chongli. Study on efficient separation of SF₆/N₂ mixture using a hydrothermally stable metal-organic framework[J]. CIESC Journal, 2020, 71(1): 320-328 DOI: 10.11949/0438-1157.20191133.
常苗, 刘磊, 阳庆元, 刘大欢, 仲崇立. 水热稳定金属-有机骨架材料用于高效分离SF₆/N₂混合物的研究[J]. 化工学报, 2020, 71(1): 320-328 DOI: 10.11949/0438-1157.20191133. DOI：

CHANG Miao, LIU Lei, YANG Qingyuan, LIU Dahuan, ZHONG Chongli. Study on efficient separation of SF₆/N₂ mixture using a hydrothermally stable metal-organic framework[J]. CIESC Journal, 2020, 71(1): 320-328 DOI: 10.11949/0438-1157.20191133. DOI：

摘要

混合物的高效分离，对SF

气体的回收与减弱其直接排放所导致的温室效应，具有重要的实际意义。合成了一种具有不同性质孔道结构的金属-有机骨架材料，Cu-MOF-OMe。该材料具有含不饱和配位金属位点和甲氧基双功能化的特征，且表现出良好的水热稳定性和再生性能。该材料表现出优异的综合分离性能，298 K和10

Pa下的分离选择性（361）和吸附剂选择性参数 (SSP) 值 (780)均远高于文献报道值。理论计算发现，亲水性孔道中的不饱和金属位和疏水性孔道中丰富的甲氧基的协同作用，为该MOF材料具有优异SF

分离性能的主要原因。研究结果可为SF

高效分离材料的设计与开发提供参考依据。

Abstract

The efficient separation of the SF

mixture has important practical significance for the recovery of SF

gas and the reduction of the greenhouse effect caused by its direct discharge. In this work

a metal–organic framework (Cu-MOF-OMe) was prepared with two different types and properties of pores. It possesses dually-functionalized characteristics of coordinatively unsaturated metal sites and methoxy groups

which exhibit good hydrothermal stability and adsorptive regenerability. This material also shows excellent separation performance for SF

mixture. At 298 K and 10

the observed adsorption selectivity (361) and sorbent selection parameter (SSP) value (780) are highest compared to various porous materials reported so far. Theoretical calculation results indicated that the underlying reason of such excellent separation properties is attributed to the cooperative effects of the open Cu sites in the hydrophilic pores and the abundant methoxy groups in the hydrophobic pores. The findings may pro

vide valuable foundation for developing highly efficient materials for practical of SF

separation.

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Keywords

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⁰

Study on efficient separation of SF6/N2 mixture using a hydrothermally stable metal-organic framework

DOI：10.11949/0438-1157.20191133

摘要

Abstract

关键词

Keywords

references

Study on efficient separation of SF₆/N₂ mixture using a hydrothermally stable metal-organic framework