CO Adsorption on Modified Mg–Al-Layered Double Hydroxides
Because of increases in the burning of fossil fuels, there is an increased emission of pollutant gases (e.g. CO 2 ) into the atmosphere. An alternative to minimize these emissions is to capture these gases using porous materials, such as layered double hydroxides (LDHs). In this study, LDHs were syn...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2015-02-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/0263-6174.33.2.165 |
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| author | T.C.M. Dantas V.J. Fernandes Junior A.P.B. dos Santos F.A. Bezerra A.S. Araujo A.P.M. Alves |
| author_facet | T.C.M. Dantas V.J. Fernandes Junior A.P.B. dos Santos F.A. Bezerra A.S. Araujo A.P.M. Alves |
| author_sort | T.C.M. Dantas |
| collection | DOAJ |
| description | Because of increases in the burning of fossil fuels, there is an increased emission of pollutant gases (e.g. CO 2 ) into the atmosphere. An alternative to minimize these emissions is to capture these gases using porous materials, such as layered double hydroxides (LDHs). In this study, LDHs were synthesized by co-precipitation of ion salts of Mg 2+ and Al 3+ . After the synthesis, the materials were treated with a template to expand the layers. The samples were then characterized by X-ray diffraction, thermogravimetric analysis/derivative thermogravimetry, adsorption/desorption of nitrogen, scanning electron microscopy/energy-dispersive X-ray spectroscopy and transmission electron microscopy. A CO 2 adsorption study was then performed to determine the adsorption capacity of the material in accordance with the contact time between the gas and the adsorbent. The adsorption capacities of LDHs and LDHs-P123 for CO 2 were 0.72 and 1.36 mmol/g, respectively, showing satisfactory results post-treatment. |
| format | Article |
| id | doaj-art-4fe0a60a59814875b2c23f88a4956897 |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2015-02-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-4fe0a60a59814875b2c23f88a49568972025-02-03T10:07:42ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382015-02-013310.1260/0263-6174.33.2.165CO Adsorption on Modified Mg–Al-Layered Double HydroxidesT.C.M. DantasV.J. Fernandes JuniorA.P.B. dos SantosF.A. BezerraA.S. AraujoA.P.M. AlvesBecause of increases in the burning of fossil fuels, there is an increased emission of pollutant gases (e.g. CO 2 ) into the atmosphere. An alternative to minimize these emissions is to capture these gases using porous materials, such as layered double hydroxides (LDHs). In this study, LDHs were synthesized by co-precipitation of ion salts of Mg 2+ and Al 3+ . After the synthesis, the materials were treated with a template to expand the layers. The samples were then characterized by X-ray diffraction, thermogravimetric analysis/derivative thermogravimetry, adsorption/desorption of nitrogen, scanning electron microscopy/energy-dispersive X-ray spectroscopy and transmission electron microscopy. A CO 2 adsorption study was then performed to determine the adsorption capacity of the material in accordance with the contact time between the gas and the adsorbent. The adsorption capacities of LDHs and LDHs-P123 for CO 2 were 0.72 and 1.36 mmol/g, respectively, showing satisfactory results post-treatment.https://doi.org/10.1260/0263-6174.33.2.165 |
| spellingShingle | T.C.M. Dantas V.J. Fernandes Junior A.P.B. dos Santos F.A. Bezerra A.S. Araujo A.P.M. Alves CO Adsorption on Modified Mg–Al-Layered Double Hydroxides Adsorption Science & Technology |
| title | CO Adsorption on Modified Mg–Al-Layered Double Hydroxides |
| title_full | CO Adsorption on Modified Mg–Al-Layered Double Hydroxides |
| title_fullStr | CO Adsorption on Modified Mg–Al-Layered Double Hydroxides |
| title_full_unstemmed | CO Adsorption on Modified Mg–Al-Layered Double Hydroxides |
| title_short | CO Adsorption on Modified Mg–Al-Layered Double Hydroxides |
| title_sort | co adsorption on modified mg al layered double hydroxides |
| url | https://doi.org/10.1260/0263-6174.33.2.165 |
| work_keys_str_mv | AT tcmdantas coadsorptiononmodifiedmgallayereddoublehydroxides AT vjfernandesjunior coadsorptiononmodifiedmgallayereddoublehydroxides AT apbdossantos coadsorptiononmodifiedmgallayereddoublehydroxides AT fabezerra coadsorptiononmodifiedmgallayereddoublehydroxides AT asaraujo coadsorptiononmodifiedmgallayereddoublehydroxides AT apmalves coadsorptiononmodifiedmgallayereddoublehydroxides |