A Microporous Titanate-Based Metal-Organic Framework for Efficient Separation of Acetylene from Carbon Dioxide

被引：14

作者：

Chen, Huanxin ^{[2
]}

Li, Xin ^{[1
]}

Liu, Miaoyu ^{[1
]}

Zhang, Yuxun ^{[3
]}

Liu, Yong ^{[3
]}

Wen, Hui-Min ^{[1
]}

机构：

[1] Zhejiang Univ Technol, Coll Chem Engn, Chaowang Rd 18, Hangzhou 310014, Zhejiang, Peoples R China

[2] Ning Bo Zhetie Dafeng Chem Co Ltd, Ningbo 315200, Zhejiang, Peoples R China

[3] Ning Bo Zhetie Jiangning Chem Co Ltd, Ningbo 315000, Zhejiang, Peoples R China

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2021年 / 647卷 / 12期

关键词：

Porous materials; gas separation; acetylene purification; carbon dioxide; functionalization; ADSORPTIVE SEPARATION; ETHYLENE; PURIFICATION; POROSITY; STORAGE; SITES;

D O I：

10.1002/zaac.202100109

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Separation of acetylene (C2H2) and carbon dioxide (CO2) is of prime importance in the petrochemical industry, but their similarities in molecular size and volatility make it particularly difficult. A desired adsorbent for highly efficient C2H2/CO2 separation should have high selectivity and C2H2 uptake simultaneously, and the introduction of functional groups into MOFs is an effective strategy to achieve this purpose. Herein, we report a titanium-based MOF material (MIL-125-NH2), featuring the suitable pore sizes and amino-functionalized pore surfaces to show the preferential adsorption of C2H2 over CO2 with both high C2H2 uptake and C2H2/CO2 selectivity. Theoretical simulation results indicate that the preferential C2H2 adsorption is mainly attributed to multiple hydrogen bonding interactions between C2H2 molecule and amino functional groups.

引用

页码：1250 / 1253

页数：4

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