TY - JOUR
T1 - Amine modification on kaolinites to enhance CO2 adsorption
AU - Chen, Yen Hua
AU - Lu, De Long
N1 - Funding Information:
The authors would like to thank Prof. Wei-The Jiang of the Department of Earth Sciences in National Cheng Kung University for the help with XRD measurements. We are grateful to Prof. Lien-Chung Hsu of the Department of Material Sciences and Engineering in National Cheng Kung University for the FTIR analysis. We also thank to Assistant Yu-Jin Cheng for paper survey. We sincerely thank to the National Science Council for the financial support.
Publisher Copyright:
© 2014 Elsevier Inc.
PY - 2014/12/5
Y1 - 2014/12/5
N2 - The objective of our study was to prepare an effective and low-cost adsorbent for CO2 capture and to provide detailed analyses of adsorption-related properties. For this purpose, we treat the naturally abundant kaolinite with amines using the wet impregnation method. The thermogravimetric analysis indicates that the CO2 adsorption capacity of kaolinite (3.3mg/g) can be enhanced through amine modification and increases with an increase in amine loading. In terms of amine-modified parameters, it is observed that kaolinite modified with 4MEA+1EDA with 50wt% has the best CO2 adsorption capacity (149.0mg/g). We also speculate, based on X-ray diffraction and Fourier transformation infrared spectroscopy results, that CO2 adsorption onto amine-modified kaolinite occurs through chemical adsorption. This further substantiates the conclusion that the inexpensive and commonly available kaolinite is a potential solid carrier and is also a good adsorbent for CO2 capture with amine modification.
AB - The objective of our study was to prepare an effective and low-cost adsorbent for CO2 capture and to provide detailed analyses of adsorption-related properties. For this purpose, we treat the naturally abundant kaolinite with amines using the wet impregnation method. The thermogravimetric analysis indicates that the CO2 adsorption capacity of kaolinite (3.3mg/g) can be enhanced through amine modification and increases with an increase in amine loading. In terms of amine-modified parameters, it is observed that kaolinite modified with 4MEA+1EDA with 50wt% has the best CO2 adsorption capacity (149.0mg/g). We also speculate, based on X-ray diffraction and Fourier transformation infrared spectroscopy results, that CO2 adsorption onto amine-modified kaolinite occurs through chemical adsorption. This further substantiates the conclusion that the inexpensive and commonly available kaolinite is a potential solid carrier and is also a good adsorbent for CO2 capture with amine modification.
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U2 - 10.1016/j.jcis.2014.08.050
DO - 10.1016/j.jcis.2014.08.050
M3 - Article
AN - SCOPUS:84907796268
SN - 0021-9797
VL - 436
SP - 47
EP - 51
JO - Journal of Colloid and Interface Science
JF - Journal of Colloid and Interface Science
ER -