TOPICAL REVIEW Advances in principal factors influencing carbon dioxide adsorption on zeolites
We report the advances in the principal structural and experimental factors that might influence the carbon dioxide (CO2) adsorption on natural and synthetic zeolites. The CO2 adsorption is principally govern by the inclusion of exchangeable cations (countercations) within the cavities of zeolites,...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2008-01-01
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| Series: | Science and Technology of Advanced Materials |
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| Online Access: | http://www.iop.org/EJ/abstract/1468-6996/9/1/013007 |
| _version_ | 1831637388724535296 |
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| author | Danielle Bonenfant et al |
| author_facet | Danielle Bonenfant et al |
| author_sort | Danielle Bonenfant et al |
| collection | DOAJ |
| description | We report the advances in the principal structural and experimental factors that might influence the carbon dioxide (CO2) adsorption on natural and synthetic zeolites. The CO2 adsorption is principally govern by the inclusion of exchangeable cations (countercations) within the cavities of zeolites, which induce basicity and an electric field, two key parameters for CO2 adsorption. More specifically, these two parameters vary with diverse factors including the nature, distribution and number of exchangeable cations. The structure of framework also determines CO2 adsorption on zeolites by influencing the basicity and electric field in their cavities. In fact, the basicity and electric field usually vary inversely with the Si/Al ratio. Furthermore, the CO2 adsorption might be limited by the size of pores within zeolites and by the carbonates formation during the CO2 chemisorption. The polarity of molecules adsorbed on zeolites represents a very important factor that influences their interaction with the electric field. The adsorbates that have the most great quadrupole moment such as the CO2, might interact strongly with the electric field of zeolites and this favors their adsorption. The pressure, temperature and presence of water seem to be the most important experimental conditions that influence the adsorption of CO2. The CO2 adsorption increases with the gas phase pressure and decreases with the rise of temperature. The presence of water significantly decreases adsorption capacity of cationic zeolites by decreasing strength and heterogeneity of the electric field and by favoring the formation of bicarbonates. The optimization of the zeolites structural characteristics and the experimental conditions might enhance substantially their CO2 adsorption capacity and thereby might give rise to the excellent adsorbents that may be used to capturing the industrial emissions of CO2. |
| first_indexed | 2024-12-19T06:51:12Z |
| format | Article |
| id | doaj.art-2ff5d72931ad48e2b12faf5d8de7b8b4 |
| institution | Directory Open Access Journal |
| issn | 1468-6996 1878-5514 |
| language | English |
| last_indexed | 2024-12-19T06:51:12Z |
| publishDate | 2008-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Science and Technology of Advanced Materials |
| spelling | doaj.art-2ff5d72931ad48e2b12faf5d8de7b8b42022-12-21T20:31:43ZengTaylor & Francis GroupScience and Technology of Advanced Materials1468-69961878-55142008-01-0191013007TOPICAL REVIEW Advances in principal factors influencing carbon dioxide adsorption on zeolitesDanielle Bonenfant et alWe report the advances in the principal structural and experimental factors that might influence the carbon dioxide (CO2) adsorption on natural and synthetic zeolites. The CO2 adsorption is principally govern by the inclusion of exchangeable cations (countercations) within the cavities of zeolites, which induce basicity and an electric field, two key parameters for CO2 adsorption. More specifically, these two parameters vary with diverse factors including the nature, distribution and number of exchangeable cations. The structure of framework also determines CO2 adsorption on zeolites by influencing the basicity and electric field in their cavities. In fact, the basicity and electric field usually vary inversely with the Si/Al ratio. Furthermore, the CO2 adsorption might be limited by the size of pores within zeolites and by the carbonates formation during the CO2 chemisorption. The polarity of molecules adsorbed on zeolites represents a very important factor that influences their interaction with the electric field. The adsorbates that have the most great quadrupole moment such as the CO2, might interact strongly with the electric field of zeolites and this favors their adsorption. The pressure, temperature and presence of water seem to be the most important experimental conditions that influence the adsorption of CO2. The CO2 adsorption increases with the gas phase pressure and decreases with the rise of temperature. The presence of water significantly decreases adsorption capacity of cationic zeolites by decreasing strength and heterogeneity of the electric field and by favoring the formation of bicarbonates. The optimization of the zeolites structural characteristics and the experimental conditions might enhance substantially their CO2 adsorption capacity and thereby might give rise to the excellent adsorbents that may be used to capturing the industrial emissions of CO2.http://www.iop.org/EJ/abstract/1468-6996/9/1/013007zeoliteschemisorptionphysical adsorptioncarbon dioxidesurface structure |
| spellingShingle | Danielle Bonenfant et al TOPICAL REVIEW Advances in principal factors influencing carbon dioxide adsorption on zeolites Science and Technology of Advanced Materials zeolites chemisorption physical adsorption carbon dioxide surface structure |
| title | TOPICAL REVIEW Advances in principal factors influencing carbon dioxide adsorption on zeolites |
| title_full | TOPICAL REVIEW Advances in principal factors influencing carbon dioxide adsorption on zeolites |
| title_fullStr | TOPICAL REVIEW Advances in principal factors influencing carbon dioxide adsorption on zeolites |
| title_full_unstemmed | TOPICAL REVIEW Advances in principal factors influencing carbon dioxide adsorption on zeolites |
| title_short | TOPICAL REVIEW Advances in principal factors influencing carbon dioxide adsorption on zeolites |
| title_sort | topical review advances in principal factors influencing carbon dioxide adsorption on zeolites |
| topic | zeolites chemisorption physical adsorption carbon dioxide surface structure |
| url | http://www.iop.org/EJ/abstract/1468-6996/9/1/013007 |
| work_keys_str_mv | AT daniellebonenfantetal topicalreviewadvancesinprincipalfactorsinfluencingcarbondioxideadsorptiononzeolites |