氨基MIL-101(Cr)强化CO<sub>2</sub>分离性能的混合基质膜优化制备

杨凯; 阮雪华; 代岩; 王佳铭; 贺高红

doi:10.11949/0438-1157.20191283

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氨基MIL-101(Cr)强化CO₂分离性能的混合基质膜优化制备

分离工程 | 更新时间：2026-07-24

- 氨基MIL-101(Cr)强化CO₂分离性能的混合基质膜优化制备
- Optimized fabrication of mixed matrix membranes based on amino-MIL-101(Cr) for highly efficient CO₂ separation
- 化工学报 2020年71卷第1期页码：329-336
- 作者机构：
  
  大连理工大学精细化工国家重点实验室，膜科学与技术研究开发中心，辽宁大连 116024
- 作者简介：
  
  杨凯（1988—），男，博士研究生，yangkai@mail.dlut.edu.cn
  贺高红（1966—），女，博士，教授，hgaohong@dlut.edu.cn
- 基金信息：
  
  国家自然科学基金项目(21978033;21606035);中国博士后科学基金(2019M650055)
- DOI：10.11949/0438-1157.20191283
  中图分类号： TQ 028.8
- 收稿：2019-10-30，
  
  修回：2019-11-10，
  
  网络首发：2020-08-12，
  
  纸质出版：2020-01-05
- 稿件说明：
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杨凯, 阮雪华, 代岩, 王佳铭, 贺高红. 氨基MIL-101(Cr)强化CO₂分离性能的混合基质膜优化制备[J]. 化工学报, 2020, 71(1): 329-336 DOI: 10.11949/0438-1157.20191283.

YANG Kai, RUAN Xuehua, DAI Yan, WANG Jiaming, HE Gaohong. Optimized fabrication of mixed matrix membranes based on amino-MIL-101(Cr) for highly efficient CO₂ separation[J]. CIESC Journal, 2020, 71(1): 329-336 DOI: 10.11949/0438-1157.20191283.
杨凯, 阮雪华, 代岩, 王佳铭, 贺高红. 氨基MIL-101(Cr)强化CO₂分离性能的混合基质膜优化制备[J]. 化工学报, 2020, 71(1): 329-336 DOI: 10.11949/0438-1157.20191283. DOI：

YANG Kai, RUAN Xuehua, DAI Yan, WANG Jiaming, HE Gaohong. Optimized fabrication of mixed matrix membranes based on amino-MIL-101(Cr) for highly efficient CO₂ separation[J]. CIESC Journal, 2020, 71(1): 329-336 DOI: 10.11949/0438-1157.20191283. DOI：

摘要

金属有机骨架MIL-101(Cr)是大孔径、高孔隙率的新型膜材料，可显著提升混合基质膜的CO

渗透性，

但其掺杂会明显降低选择性，有两方面原因：有机配体的CO

亲和性较低；填料干燥活化后再分散性差，易团聚形成缺陷。对此，首先以氨基对苯二甲酸为配体合成氨基MIL-101(Cr)，提高溶解选择性，再采用先浇铸-后活化的制膜工艺，减少团聚缺陷。红外测试表明氨基填料成功合成；扫描电镜表明膜中填料分布均匀。掺杂15%(质量)氨基MIL-101(Cr)的乙基纤维素混合基质膜，CO

渗透系数达到200 barrer，比MIL-101(Cr)膜提高11.2%，较纯聚合物膜提高133.1%；同时，CO

选择性达到23.9，比MIL-101(Cr)膜提高25.8%，较纯聚合物膜提高17.1%。综上，采用先浇铸-后活化的制膜工艺掺杂氨基MIL-101(Cr)填料，可同时提高混合基质膜的CO

渗透性和选择性。

Abstract

Metal-organic framework MIL-101(Cr) is a kind of new membrane materials with large pore size and high porosity

which can greatly enhance CO

permeability for mixed matrix membranes. However

the blending with MIL-101(Cr) particles will lead to obvious decrease in CO

selectivity

mainly caused by the following two reasons: terephthalic acid

as organic legend in MIL-101(Cr)

is low in CO

affinity relatively; particles after drying for activation

unable to be adequately dispersed in casting solution

would form defects in membranes. In response

two innovative attempts were carried through in this work. At first

amino-MIL-101(Cr) fillers were synthesized with 2-amino-terephthalic acid as organic legend

which could increase solution selectivity. Secondly

the retrofitted technique with MIL-101(Cr) activation after membrane fabrication was utilized to decrease defects caused by particle aggregation. FI-TR characterization revealed that amino-MIL-101(Cr) particles have been synthesized successfully. SEM images demonstrated that both MIL-101(Cr) and amino-MIL-101(Cr) particles can be evenly distributed in mixed matrix membranes through the retrofitted technique. Afterward

the membranes were fabricated with amino-MIL-101(Cr) blended in ethyl cellulose. Gas permeation tests revealed that the optimum particle loading is around 15%(mass). In this case

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=113847688&type=

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=113847649&type=

5.84200001

4.23333359

is about 166 barrer (16.5% and 93.0% higher than MIL-101(Cr) blended and pristine membranes

respectively)

while

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=113847674&type=

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=113847662&type=

9.14400005

4.31799984

is about 23.9 (25.3% and 17.1% higher than that of MIL-101(Cr) blended and pristine membranes

respectively). On the whole

the blending with amino-MIL-101(Cr) particles through casting-activation approach can significantly enhance CO

selective permeation in mixed matrix membranes.

关键词

Keywords

references

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氨基MIL-101(Cr)强化CO2分离性能的混合基质膜优化制备

Optimized fabrication of mixed matrix membranes based on amino-MIL-101(Cr) for highly efficient CO2 separation

DOI：10.11949/0438-1157.20191283

摘要

Abstract

关键词

Keywords

references

氨基MIL-101(Cr)强化CO₂分离性能的混合基质膜优化制备

Optimized fabrication of mixed matrix membranes based on amino-MIL-101(Cr) for highly efficient CO₂ separation