Morphological Characterization of Brazilian Organ Clays Using AFM and SEM Studies
A combination of SEM (Scanning Electron Microscopy) and AFM (Atomic Force Microscopy) techniques was used to characterise the morphology of Brazilian montmorillonites before and after intercalation of some organic compounds. AFM revealed that the layers are staked over above the others. The surface...
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| Format: | article |
| Language: | English |
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2013
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| Online Access: | http://ridda2.utp.ac.pa/handle/123456789/2863 |
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| _version_ | 1869652476372713472 |
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| author | Tejedor De León, A. |
| author2 | Navarro, G. Rubio, J. |
| author2_role | author author |
| author_browse | Navarro, G. Rubio, J. Tejedor De León, A. |
| author_facet | Tejedor De León, A. Navarro, G. Rubio, J. |
| author_role | author |
| collection | Repositorio Institucional de documento digitales de acceso abierto de la UTP |
| dc.creator.none.fl_str_mv | Tejedor De León, A. Navarro, G. Rubio, J. |
| dc.date.none.fl_str_mv | 2013-05 2013-05 2017-08-23T16:56:39Z 2017-08-23T16:56:39Z 2017-08-23T16:56:39Z 2017-08-23T16:56:39Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://ridda2.utp.ac.pa/handle/123456789/2863 http://ridda2.utp.ac.pa/handle/123456789/2863 |
| dc.language.none.fl_str_mv | eng eng |
| dc.rights.none.fl_str_mv | https://creativecommons.org/licenses/by-nc-sa/4.0/ info:eu-repo/semantics/openAccess |
| dc.source.none.fl_str_mv | reponame:Repositorio Institucional de documento digitales de acceso abierto de la UTP instname:Universidad Tecnológica de Panamá instacron:U Tecnológica de Panamá |
| dc.subject.none.fl_str_mv | atomic force microscopy organoclays montmorillonites scanning electron microscopý atomic force microscopy organoclays montmorillonites scanning electron microscopý |
| dc.title.none.fl_str_mv | Morphological Characterization of Brazilian Organ Clays Using AFM and SEM Studies |
| dc.type.none.fl_str_mv | info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
| description | A combination of SEM (Scanning Electron Microscopy) and AFM (Atomic Force Microscopy) techniques was used to characterise the morphology of Brazilian montmorillonites before and after intercalation of some organic compounds. AFM revealed that the layers are staked over above the others. The surface of the particles consisted of layers bounded with smooth flat basal planes and larger edges ending in some cascade-like steps 184 µm wide. Some micro and macro valleys (0.6 µm deep) are distributed throughout the whole area and irregularities on basal planes may be attributed to the crystallographic conditions of the genesis of these Brazilian montmorillonites. The mapping performed over 20 x 40 areas showed adhesion forces of 11 nN magnitude on bare clay mineral in the Na+ form and 40 nN for the calcium form. Forces between 10 and 6 nN were found after organic intercalation. In general, the intercalation caused significant changes in the surface properties of clay mineral. The combination of AFM and SEM studies provided evidence about the poorl crystallinity of the Brazilian montmorillonites. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | lrtest_df405ff9ed478d2bbac70263d748ce9d |
| instacron_str | U Tecnológica de Panamá |
| institution | U Tecnológica de Panamá |
| instname_str | Universidad Tecnológica de Panamá |
| language | eng |
| network_acronym_str | lrtest |
| network_name_str | lr |
| oai_identifier_str | oai:ridda2.utp.ac.pa:123456789/2863 |
| publishDate | 2013 |
| publishDateSort | 2013 |
| reponame_str | Repositorio Institucional de documento digitales de acceso abierto de la UTP |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | https://creativecommons.org/licenses/by-nc-sa/4.0/ |
| spelling | Morphological Characterization of Brazilian Organ Clays Using AFM and SEM StudiesTejedor De León, A.Navarro, G.Rubio, J.atomic force microscopyorganoclaysmontmorillonitesscanning electron microscopýatomic force microscopyorganoclaysmontmorillonitesscanning electron microscopýA combination of SEM (Scanning Electron Microscopy) and AFM (Atomic Force Microscopy) techniques was used to characterise the morphology of Brazilian montmorillonites before and after intercalation of some organic compounds. AFM revealed that the layers are staked over above the others. The surface of the particles consisted of layers bounded with smooth flat basal planes and larger edges ending in some cascade-like steps 184 µm wide. Some micro and macro valleys (0.6 µm deep) are distributed throughout the whole area and irregularities on basal planes may be attributed to the crystallographic conditions of the genesis of these Brazilian montmorillonites. The mapping performed over 20 x 40 areas showed adhesion forces of 11 nN magnitude on bare clay mineral in the Na+ form and 40 nN for the calcium form. Forces between 10 and 6 nN were found after organic intercalation. In general, the intercalation caused significant changes in the surface properties of clay mineral. The combination of AFM and SEM studies provided evidence about the poorl crystallinity of the Brazilian montmorillonites.A combination of SEM (Scanning Electron Microscopy) and AFM (Atomic Force Microscopy) techniques was used to characterise the morphology of Brazilian montmorillonites before and after intercalation of some organic compounds. AFM revealed that the layers are staked over above the others. The surface of the particles consisted of layers bounded with smooth flat basal planes and larger edges ending in some cascade-like steps 184 µm wide. Some micro and macro valleys (0.6 µm deep) are distributed throughout the whole area and irregularities on basal planes may be attributed to the crystallographic conditions of the genesis of these Brazilian montmorillonites. The mapping performed over 20 x 40 areas showed adhesion forces of 11 nN magnitude on bare clay mineral in the Na+ form and 40 nN for the calcium form. Forces between 10 and 6 nN were found after organic intercalation. In general, the intercalation caused significant changes in the surface properties of clay mineral. The combination of AFM and SEM studies provided evidence about the poorl crystallinity of the Brazilian montmorillonites.2017-08-23T16:56:39Z2017-08-23T16:56:39Z2017-08-23T16:56:39Z2017-08-23T16:56:39Z2013-052013-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://ridda2.utp.ac.pa/handle/123456789/2863http://ridda2.utp.ac.pa/handle/123456789/2863engenghttps://creativecommons.org/licenses/by-nc-sa/4.0/info:eu-repo/semantics/openAccessreponame:Repositorio Institucional de documento digitales de acceso abierto de la UTPinstname:Universidad Tecnológica de Panamáinstacron:U Tecnológica de Panamáoai:ridda2.utp.ac.pa:123456789/28632021-07-06T15:35:15Z |
| spellingShingle | Morphological Characterization of Brazilian Organ Clays Using AFM and SEM Studies Tejedor De León, A. atomic force microscopy organoclays montmorillonites scanning electron microscopý atomic force microscopy organoclays montmorillonites scanning electron microscopý |
| status_str | publishedVersion |
| title | Morphological Characterization of Brazilian Organ Clays Using AFM and SEM Studies |
| title_full | Morphological Characterization of Brazilian Organ Clays Using AFM and SEM Studies |
| title_fullStr | Morphological Characterization of Brazilian Organ Clays Using AFM and SEM Studies |
| title_full_unstemmed | Morphological Characterization of Brazilian Organ Clays Using AFM and SEM Studies |
| title_short | Morphological Characterization of Brazilian Organ Clays Using AFM and SEM Studies |
| title_sort | Morphological Characterization of Brazilian Organ Clays Using AFM and SEM Studies |
| topic | atomic force microscopy organoclays montmorillonites scanning electron microscopý atomic force microscopy organoclays montmorillonites scanning electron microscopý |
| url | http://ridda2.utp.ac.pa/handle/123456789/2863 |