Amino-Functionalized β-Cyclodextrin to Construct Green Metal-Organic Framework Materials for CO2 Capture

被引：80
作者：
Xu, Long [1 ,3 ]
Xing, Cheng-Yuan [1 ,3 ]
Ke, Duo [1 ,3 ]
Chen, Li [2 ]
Qiu, Zhen-Jiang [1 ,3 ]
Zeng, Shi-Lin [2 ]
Li, Bang-Jing [1 ]
Zhang, Sheng [2 ]
机构：
[1] Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Peoples R China
[2] Sichuan Univ, State Key Lab Polymer Mat Engn, Polymer Res Inst, Chengdu 610065, Peoples R China
[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源：
ACS APPLIED MATERIALS & INTERFACES | 2020年 / 12卷 / 02期
基金：
中国国家自然科学基金;
关键词：
beta-cyclodextrin; metal-organic framework; amino-functionalization; CO2; capture; water stability; ultrasonic method; ZEOLITIC IMIDAZOLATE FRAMEWORKS; CARBON-DIOXIDE CAPTURE; FACILE STABILIZATION; ALPHA-CYCLODEXTRIN; ACTIVATED CARBON; PORE-SIZE; CD-MOF; ADSORPTION; SEPARATION; TEMPERATURE;
D O I：
10.1021/acsami.9b20003
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The adsorption of CO2 by conventional liquid alkanolamine adsorbents does not meet the requirements for green-friendly development in industrial applications. In this work, we constructed NH2-beta-CD-MOF for the first time through the amino-functionalization of the lowest-priced, readily available, and biocompatible beta-CD. Subsequently, the samples were characterized by single-crystal X-ray diffraction, powder X-ray diffraction, scanning electron microscopy, differential scanning calorimetry, thermogravimetric analysis, elemental analysis, and N-2 adsorption/desorption. The CO2 adsorption capacity of NH2-beta-CD-MOF was found to be 12.3 cm(3)/g, which is 10 times that of beta-CD-MOF. In addition, NH2-beta-CD-MOF has outstanding selective adsorption of CO2/N-2 (947.52) compared with the reported materials. The adsorption mechanism of CO2 was analyzed by X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy. Furthermore, we have found that NH2-beta-CD-MOF has better water stability relative to beta-CD-MOF and gamma-CD-MOF, and it can be recycled by an ultrasonic method.
引用
收藏
页码：3032 / 3041
页数：10
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