Highly efficient and selective CO2 capture of Li2CO3- and (Li-K)2CO3-based porous carbon composites

被引：1
|
作者：
Li, Honghao [1 ]
Nasiman, Tuerxun [1 ]
机构：
[1] Xinjiang Normal Univ, Coll Chem & Chem Engn, Urumqi 830054, Peoples R China
来源：
RSC ADVANCES | 2023年 / 13卷 / 29期
关键词：
ADSORPTION; CAPACITY; DIOXIDE;
D O I：
10.1039/d3ra02607h
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In this study, Li2CO3- and (Li-K)(2)CO3-based porous carbon composites were synthesized from terephthalic acid, lithium hydroxide and sodium hydroxide through calcination at different temperatures. These materials were fully characterized through X-ray diffraction, Raman spectroscopy, and nitrogen adsorption and desorption. Results showed that the excellent CO2 capture capacities of LiC-700 & DEG;C and LiKC-600 & DEG;C were 140 and 82 mg CO2 g(-1) at 0 & DEG;C and 25 & DEG;C, respectively. Additionally, it is calculated that the selectivity of LiC-600 & DEG;C and LiKC-700 & DEG;C with a CO2/N-2 (15 : 85) mixture was about 27.41 and 15.04, respectively. Therefore, Li2CO3- and (Li-K)(2)CO3-based porous carbon materials could be used to effectively capture CO2 with high capacity and high selectivity.
引用
收藏
页码：19881 / 19887
页数：7
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