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AS-synthesized mesoporous silica MSU-1 modified with tetraethylenepentamine for CO2 adsorption
Wang, Xingrui1,2; Li, Huiquan1; Liu, Haitao1; Hou, Xinjuan1; Li, HQ
2011-07-01
Source PublicationMICROPOROUS AND MESOPOROUS MATERIALS
ISSN1387-1811
Volume142Issue:2-3Pages:564-569
AbstractTetraethylenepentamine (TEPA) was incorporated into as-synthesized mesoporous silica MSU-1 with cheap sodium silicate as silica source to create TEPA/MSU-1, an adsorbent having high adsorption capacity for carbon dioxide. The adsorbents were characterized by X-ray diffraction (XRD), N-2 adsorption/desorption, thermogravimetry (TG), and Flourier transform infrared (FTIR) spectrometry. The XRD results indicated that the adsorbents preserved the mesostructure of MSU-1 after TEPA was loaded. However, the surface area decreased dramatically, indicating that the pores are occupied by amine. TG patterns showed that the adsorbents are thermally unstable at temperatures above 200 degrees C. The FTIR results suggested that CO2 interacts with TEPA to form alkalammonium carbamate. CO2 adsorption isotherms measured at different temperatures revealed that the optimal adsorption temperature is 75 degrees C. Temperature-programmed desorption (TPD) of CO2 showed that the desorption of CO2 achieved maximal desorption rate at about 100 degrees C, and so is appropriate for thermal swing adsorption of CO2 from flue gas. The adsorption capacity of TEPA/MSU-1 with a different TEPA content was calculated through CO2 breakthrough curves. As a result, 50 wt% of TEPA supported on as-synthesized MSU-1 achieved the highest capacity at 3.87 mmol/g. (C) 2011 Elsevier Inc. All rights reserved.
KeywordMsu 1 Tetraethylenepentamine Adsorption Co2
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1016/j.micromeso.2010.12.047
Indexed BySCI
Language英语
WOS KeywordCARBON-DIOXIDE ADSORPTION ; MOLECULAR-SIEVE ; HIGH-TEMPERATURES ; HIGH-CAPACITY ; HIGH-PRESSURE ; ZEOLITE 13X ; FLUE-GAS ; CAPTURE ; AMINE ; HYDROTALCITE
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
WOS SubjectChemistry, Applied ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS IDWOS:000290198500019
Citation statistics
Cited Times:66[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/4891
Collection湿法冶金清洁生产技术国家工程实验室
Corresponding AuthorLi, HQ
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Wang, Xingrui,Li, Huiquan,Liu, Haitao,et al. AS-synthesized mesoporous silica MSU-1 modified with tetraethylenepentamine for CO2 adsorption[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2011,142(2-3):564-569.
APA Wang, Xingrui,Li, Huiquan,Liu, Haitao,Hou, Xinjuan,&Li, HQ.(2011).AS-synthesized mesoporous silica MSU-1 modified with tetraethylenepentamine for CO2 adsorption.MICROPOROUS AND MESOPOROUS MATERIALS,142(2-3),564-569.
MLA Wang, Xingrui,et al."AS-synthesized mesoporous silica MSU-1 modified with tetraethylenepentamine for CO2 adsorption".MICROPOROUS AND MESOPOROUS MATERIALS 142.2-3(2011):564-569.
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