Carbon Dioxide Capture by MgO-modified MCM-41 Materials
MgO/MCM-41 materials with weak basic sites were synthesized by dispersing MgO onto mesoporous Si-MCM-41. Such MgO-modified MCM-41 materials were characterized by Fourier-transform infrared spectroscopy (FT-IR), temperature programmed desorption (TPD), X-ray diffraction (XRD) and N 2 adsorption/desor...
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2009-07-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/0263-6174.27.6.593 |
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| author | Xin Fu Ning Zhao Junping Li Fukui Xiao Wei Wei Yuhan Sun |
| author_facet | Xin Fu Ning Zhao Junping Li Fukui Xiao Wei Wei Yuhan Sun |
| author_sort | Xin Fu |
| collection | DOAJ |
| description | MgO/MCM-41 materials with weak basic sites were synthesized by dispersing MgO onto mesoporous Si-MCM-41. Such MgO-modified MCM-41 materials were characterized by Fourier-transform infrared spectroscopy (FT-IR), temperature programmed desorption (TPD), X-ray diffraction (XRD) and N 2 adsorption/desorption measurements. The results indicated that the surface area, pore size and pore volume of the materials decreased with the introduction of MgO. Their CO 2 uptakes could be significantly improved when the MgO loading was increased from 0 wt% to 20 wt%. CO 2 -TPD and in situ FT-IR measurements showed that the materials possessed weak basic sites which could react with CO 2 to form bicarbonate species and thereby improve the CO 2 uptake. As a result, the adsorbed CO 2 could be desorbed completely from the sample at 200 °C. In addition, the MgO/MCM-41 materials had a high thermal stability and showed promising performances in practical applications. |
| format | Article |
| id | doaj-art-07aed07f479044ad84ddaeece84f4015 |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2009-07-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-07aed07f479044ad84ddaeece84f40152025-01-02T22:37:22ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382009-07-012710.1260/0263-6174.27.6.593Carbon Dioxide Capture by MgO-modified MCM-41 MaterialsXin Fu0Ning Zhao1Junping Li2Fukui Xiao3Wei Wei4Yuhan Sun5 Graduate University of Chinese Academy of Sciences, Beijing 100039, P. R. China State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, P. R. China State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, P. R. China State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, P. R. China State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, P. R. China State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, P. R. ChinaMgO/MCM-41 materials with weak basic sites were synthesized by dispersing MgO onto mesoporous Si-MCM-41. Such MgO-modified MCM-41 materials were characterized by Fourier-transform infrared spectroscopy (FT-IR), temperature programmed desorption (TPD), X-ray diffraction (XRD) and N 2 adsorption/desorption measurements. The results indicated that the surface area, pore size and pore volume of the materials decreased with the introduction of MgO. Their CO 2 uptakes could be significantly improved when the MgO loading was increased from 0 wt% to 20 wt%. CO 2 -TPD and in situ FT-IR measurements showed that the materials possessed weak basic sites which could react with CO 2 to form bicarbonate species and thereby improve the CO 2 uptake. As a result, the adsorbed CO 2 could be desorbed completely from the sample at 200 °C. In addition, the MgO/MCM-41 materials had a high thermal stability and showed promising performances in practical applications.https://doi.org/10.1260/0263-6174.27.6.593 |
| spellingShingle | Xin Fu Ning Zhao Junping Li Fukui Xiao Wei Wei Yuhan Sun Carbon Dioxide Capture by MgO-modified MCM-41 Materials Adsorption Science & Technology |
| title | Carbon Dioxide Capture by MgO-modified MCM-41 Materials |
| title_full | Carbon Dioxide Capture by MgO-modified MCM-41 Materials |
| title_fullStr | Carbon Dioxide Capture by MgO-modified MCM-41 Materials |
| title_full_unstemmed | Carbon Dioxide Capture by MgO-modified MCM-41 Materials |
| title_short | Carbon Dioxide Capture by MgO-modified MCM-41 Materials |
| title_sort | carbon dioxide capture by mgo modified mcm 41 materials |
| url | https://doi.org/10.1260/0263-6174.27.6.593 |
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