Enhancement of CO2 adsorption and separation in basic ionic liquid/ZIF-8 with core-shell structure

被引：9

作者：

Nie, Shiyu ^{[1
]}

Liu, Encheng ^{[2
]}

Chen, Fengfeng ^{[1
,3
]}

Ma, Yilin ^{[1
]}

Chen, Kai ^{[2
,3
]}

Gao, Junkuo ^{[1
]}

机构：

[1] Zhejiang Sci Tech Univ, Sch Mat Sci & Engn, Lab Funct Porous Mat, Hangzhou 310018, Peoples R China

[2] Zhejiang Sci Tech Univ, Int Inst Silk, Coll Text Sci & Engn, Hangzhou 310018, Peoples R China

[3] Key Lab Green Cleaning Technol & Detergent Zhejian, Lishui 323000, Zhejiang, Peoples R China

来源：

CHEMICAL COMMUNICATIONS | 2024年 / 60卷 / 26期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

METAL-ORGANIC FRAMEWORK; CAPTURE; LIQUIDS; ZIF-8; ABSORPTION;

D O I：

10.1039/d4cc00478g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A novel strategy was proposed to improve the performance of gas separation in nano-materials, by fabricating a core-shell structure out of the basic ionic liquid ([Emim]<INF>2</INF>[IDA]) and zeolitic imidazolate framework (ZIF-8). The [Emim]<INF>2</INF>[IDA]/ZIF-8 exhibits a remarkable CO<INF>2</INF> adsorption capacity of 14 cm3 g-1 at 298 K and 20 kPa, the ideal selectivity of CO<INF>2</INF>/N<INF>2</INF> is as high as 104 and CO<INF>2</INF>/CH<INF>4</INF> is 348 at 298 K and 100 kPa, which are much higher than the CO<INF>2</INF> adsorption capacity (4.3 cm3 g-1) and the selectivity (S<INF>CO<INF>2</INF>/N<INF>2</INF></INF> = 7.4, S<INF>CO<INF>2</INF>/CH<INF>4</INF></INF> = 2.7) of ZIF-8. This work could pave the way for designing advanced nanostructures tailored for gas separation.

引用

页码：3559 / 3562

页数：4

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