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题名: CO2 adsorption on SBA-15 modified by aminosilane
作者: Wang Linfang;  Ma Lei;  Wang Aiqin;  Liu Qian;  Mang Tao
关键词: SBA-15 ;  surface modification ;  one-step silylation ;  post-synthesis silylation ;  carbon dioxide ;  adsorption
刊名: CHINESE JOURNAL OF CATALYSIS
发表日期: 2007-09-01
卷: 28, 期:9, 页:805-810
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: By grafting amines onto the mesoporous support SBA-15, a highly efficient adsorbent has been obtamed. This material shows potential applications in the removal Of CO2 from enclosed areas such as space shuttles and submarines. SBA-15 was modified with 3-aminopropyl-triethoxysilane (APTES) by post-synthesis silylation and one-step silylation methods using ethanol as the solvent. The physical properties of these adsorbents were characterized by X-ray powder diffraction and N-2 adsorption- desorption. The ordered hexagonal mesoporous structure of SBA-15 is well preserved after the modification. CO2 adsorption was tested using a static adsorption equipment. Adsorption isotherms demonstrate that the one-step silylation method is better than the post-synthesis silylation method. SBA-15 that was modified with APTES through one-step sitylation can adsorb 34. 2 Mg/g Of CO2 at room temperature when the partial pressure Of CO2 is 0. 005 MPa. Active carbon, the traditional adsorbent of CO2 was also tested. At room temperature, modified SBA-15 shows better performance than active carbon when the partial pressure of CO2 is lower than 0.02 MPa.
关键词[WOS]: MESOPOROUS MOLECULAR-SIEVE ;  CARBON-DIOXIDE ;  HIGH-CAPACITY ;  SILICA ;  ADSORBENT ;  REMOVAL ;  MCM-41
语种: 英语
WOS记录号: WOS:000250327900013
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140484
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

Recommended Citation:
Wang Linfang,Ma Lei,Wang Aiqin,et al. CO2 adsorption on SBA-15 modified by aminosilane[J]. CHINESE JOURNAL OF CATALYSIS,2007,28(9):805-810.
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