Mesoporous amine-modified SiO2 aerogel: a potential CO2 sorbent

被引：234

作者：

Cui, Sheng ^{[1
,2
,3
]}

Cheng, Weiwei ^{[1
,2
]}

Shen, Xiaodong ^{[1
,2
]}

Fan, Maohong ^{[3
,4
]}

Russell, Armistead ^{[3
]}

Wu, Zhanwu ^{[1
,2
]}

Yi, Xibin ^{[1
,2
]}

机构：

[1] Nanjing Univ Technol, State Key Lab Mat Oriented Chem Engn, Nanjing 210009, Peoples R China

[2] Nanjing Univ Technol, Coll Mat Sci & Engn, Nanjing 210009, Peoples R China

[3] Georgia Inst Technol, Sch Civil & Environm Engn, Atlanta, GA 30332 USA

[4] Univ Wyoming, Dept Chem & Petr Engn, Laramie, WY 82071 USA

来源：

ENERGY & ENVIRONMENTAL SCIENCE | 2011年 / 4卷 / 06期

关键词：

CARBON-DIOXIDE; SECONDARY ALKANOLAMINES; ADSORPTION PROPERTIES; AQUEOUS-SOLUTIONS; SILICA AEROGEL; KINETICS; WATER; ADSORBENT; DYNAMICS; CAPTURE;

D O I：

10.1039/c0ee00442a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An amine-modified SiO2 aerogel (AMSA) was prepared using the sol-gel method and supercritical drying technology. CO2 adsorption tests were conducted under different conditions. High adsorption capacities were achieved in the presence of water vapor, with the highest CO2 adsorption capacity of 6.97 mmol/g-sorbent at 25 degrees C. A novel adsorption mechanism associated with the CO2 sorption process is proposed. The test results indicate that AMSA is a promising CO2 adsorbent.

引用

页码：2070 / 2074

页数：5

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