英文论文


文献类型
Journal article (JA)
题名
Facile co-precursor sol-gel synthesis of a novel amine-modified silica aerogel for high efficiency carbon dioxide capture
作者
Shao, Zai-Dong (1, 2); Cheng, Xuan (3, 4); Zheng, Yu-Ming (1, 2)
作者单位
(1) CAS Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen; Fujian; 361021, China (2) CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen; Fujian; 361021, China (3) Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen; Fujian; 361005, China (4) Fujian Key Laboratory of Advanced Materials, Xiamen; Fujian; 361005, China
通讯作者地址
Chinese Acad Sci, Inst Urban Environm, CAS Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Fujian, Peoples R China.
Email
ResearchID
ORCID
期刊名称
Journal of Colloid and Interface Science
出版社
Academic Press Inc.
ISSN
0021-9797
出版信息
2018-11-15, 530:412-423.
JCR
2
影响因子
6.361
ISBN
基金
National Natural Science Foundation of China [51578525, 5153000136]; China Postdoctoral Science Foundation [2015M571974]; Science and Technology Planning Project of Xiamen City [3502Z20162004]; Fujian Key Laboratory of Advanced Materials (Xiamen University); Knowlegde Innovation Program of the Chineses Academy of Sciences [IUEQN201502]; Zhongke Tongde (Xiamen) I.O.T. Technology Co., Ltd.
会议名称
会议地点
会议开始日期
会议结束日期
关键词
Adsorption; Aerogels; Amines; Climate change; Physical properties; Silica; Silica gel; Sol-gel process; Sol-gels
摘要
Massive amount of CO2emission, which could cause climate change, has been recognized as a serious environmental issue. Chemical adsorption is generally considered as a promising technology for CO2capture in low CO2partial pressure. Physical properties and chemical components of the adsorbent are important to CO2adsorption performance. To address structure limitation and complicated preparation process of the conventional adsorbent, herein, we reported a rapid and simple route to synthesis amine-modified silica aerogel monolith by co-precursor sol-gel method. Microstructure and the surface functional groups of the amine-modified silica aerogel could be easily manipulated. The products were characterized by SEM, XPS, NMR, in situ DRIFT and CNS elemental analyzer. The amine-modified silica aerogel exhibited good physical properties and demonstrated excellent CO2adsorption performance. The density, porosity and BJH pore volume of the amine-modified silica aerogel were 0.12 g/cm3, 94.5% and 2.39 cm3/g, respectively. The maximum static and dynamic adsorption capacities of CO2on the amine-modified silica aerogel were 2.2 mmol/g and 5.59 mmol/g under anhydrous and humid mixed gas conditions, respectively. The as-prepared aerogel also showed good cyclic ability for CO2adsorption and desorption. The CO2adsorption on the amine-modified silica aerogel is by the formation of carbamate through a two-step zwitterion mechanism. This easily prepared amine-modified silica aerogel could be a promising adsorbent for CO2capture. ? 2018 Elsevier Inc.
一级学科
Chemistry, Physical
WOS入藏号
WOS:000442700000046
EI收录号
20182805534600
DOI
10.1016/j.jcis.2018.06.094
ESI
CHEMISTRY
收录于
SCIE, EI

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