首页|Controllable construction of ionic frameworks for multi-site synergetic enhancement of CO2 capture

Controllable construction of ionic frameworks for multi-site synergetic enhancement of CO2 capture

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CO2 capture is one of the key technologies for dealing with the global warming and implementing low-carbon development strategy.The emergence of ionic metal-organic frameworks(I-MOFs)has diversified the field of porous materials,which have been extensively applied for gas adsorption and separation.In this work,amino-functionalized imidazolium ionic liquid as organic monodentate ligand was used for one step synthesis microporous Cu based I-MOFs.Precise tuning of the adsorption properties was obtained by incorporating aromatic anions,such as phenoxy,benzene carboxyl,and benzene sulfonic acid group into the I-MOFs via a facile ion exchange method.The new I-MOFs showed high thermal stability and high capacity of 5.4 mmol·g-1 under atmospheric conditions for selective adsorption of CO2.The active sites of microporous Cu-MOF are the ion basic center and unsaturated metal,and electrostatic attraction and hydroxyl bonding between CO2 and modified functional sulfonic groups are responsible for the adsorption.This work provides a feasible strategy for the design of I-MOF for functional gas capture.

carbon dioxide capturemicroporesionic liquidsmulti-site synergismionic metal-organic frameworks

Yuke Zhang、Hongxue Xu、Haonan Wu、Lijuan Shi、Jiancheng Wang、Qun Yi

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State Key Laboratory of Clean and Efficient Coal Utilization,Taiyuan University of Technology,Taiyuan 030024,China

School of Chemical Engineering and Pharmacy,Wuhan Institute of Technology,Wuhan 430205,China

Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering,Taiyuan 030024,China

National Natural Science Foundation of ChinaKnowledge Innovation Program of Wuhan-Basic ResearchShanxi-Zheda Institute of Advanced Materials and Chemical EngineeringJoint Fund of the Yulin University and the Dalian National Laboratory for Clean Energy

2227212520220208010103542022SX-TD015YLU-DNL Fund 2021021

2024

10.1007/s11705-023-2370-4

化学科学与工程前沿
高等教育出版社

化学科学与工程前沿

CSTPCDEI
影响因子：0.172
ISSN：2095-0179
年,卷(期)：2024.18(1)
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