Effect of sonication on the particle size of montmorillonite clays
This paper reports on the effect of sonication on SAz-1 and SWy-1 montmorillonite suspensions. Changes in the size of the particles of these materials and modifications of their properties have been investigated. The variation of the particle size has been analyzed by DLS (dynamic light scattering)....
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| Veröffentlicht in: | Journal of colloid and interface science 2008-09, Vol.325 (2), p.386-390 |
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| container_title | Journal of colloid and interface science |
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| creator | Poli, Alessandra L. Batista, Tatiana Schmitt, Carla C. Gessner, Fergus Neumann, Miguel G. |
| description | This paper reports on the effect of sonication on SAz-1 and SWy-1 montmorillonite suspensions. Changes in the size of the particles of these materials and modifications of their properties have been investigated. The variation of the particle size has been analyzed by DLS (dynamic light scattering). In all cases the clay particles show a bimodal distribution. Sonication resulted in a decrease of the larger modal diameter, as well as a reduction of its volume percentage. Simultaneously, the proportion of the smallest particles increases. After 60 min of sonication, SAz-1 presented a very broad particle size distribution with a modal diameter of 283 nm. On the other hand, the SWy-1 sonicated for 60 min presents a bimodal distribution of particles at 140 and 454 nm. Changes in the properties of the clay suspensions due to sonication were evaluated spectroscopically from dye–clay interactions, using Methylene Blue. The acidic sites present in the interlamellar region, which are responsible for dye protonation, disappeared after sonication of the clay. The changes in the size of the scattering particles and the lack of acidic sites after sonication suggest that sonication induces delamination of the clay particles.
Sonication induces the deaggregation of clay tactoids. |
| doi_str_mv | 10.1016/j.jcis.2008.06.016 |
| format | Article |
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Sonication induces the deaggregation of clay tactoids.</description><identifier>ISSN: 0021-9797</identifier><identifier>EISSN: 1095-7103</identifier><identifier>DOI: 10.1016/j.jcis.2008.06.016</identifier><identifier>PMID: 18572177</identifier><identifier>CODEN: JCISA5</identifier><language>eng</language><publisher>San Diego, CA: Elsevier Inc</publisher><subject>Chemistry ; Clays ; Clay–dye interactions ; Colloidal state and disperse state ; Dyes ; Exact sciences and technology ; General and physical chemistry ; Sonication ; Surface physical chemistry</subject><ispartof>Journal of colloid and interface science, 2008-09, Vol.325 (2), p.386-390</ispartof><rights>2008 Elsevier Inc.</rights><rights>2008 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c487t-2c51aaade5d65d4e0e02e3065cfcd63a0bddba2038715566efb3e42b3d6ed8ee3</citedby><cites>FETCH-LOGICAL-c487t-2c51aaade5d65d4e0e02e3065cfcd63a0bddba2038715566efb3e42b3d6ed8ee3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jcis.2008.06.016$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>315,782,786,3552,27931,27932,46002</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20608741$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/18572177$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Poli, Alessandra L.</creatorcontrib><creatorcontrib>Batista, Tatiana</creatorcontrib><creatorcontrib>Schmitt, Carla C.</creatorcontrib><creatorcontrib>Gessner, Fergus</creatorcontrib><creatorcontrib>Neumann, Miguel G.</creatorcontrib><title>Effect of sonication on the particle size of montmorillonite clays</title><title>Journal of colloid and interface science</title><addtitle>J Colloid Interface Sci</addtitle><description>This paper reports on the effect of sonication on SAz-1 and SWy-1 montmorillonite suspensions. Changes in the size of the particles of these materials and modifications of their properties have been investigated. The variation of the particle size has been analyzed by DLS (dynamic light scattering). In all cases the clay particles show a bimodal distribution. Sonication resulted in a decrease of the larger modal diameter, as well as a reduction of its volume percentage. Simultaneously, the proportion of the smallest particles increases. After 60 min of sonication, SAz-1 presented a very broad particle size distribution with a modal diameter of 283 nm. On the other hand, the SWy-1 sonicated for 60 min presents a bimodal distribution of particles at 140 and 454 nm. Changes in the properties of the clay suspensions due to sonication were evaluated spectroscopically from dye–clay interactions, using Methylene Blue. The acidic sites present in the interlamellar region, which are responsible for dye protonation, disappeared after sonication of the clay. The changes in the size of the scattering particles and the lack of acidic sites after sonication suggest that sonication induces delamination of the clay particles.
Sonication induces the deaggregation of clay tactoids.</description><subject>Chemistry</subject><subject>Clays</subject><subject>Clay–dye interactions</subject><subject>Colloidal state and disperse state</subject><subject>Dyes</subject><subject>Exact sciences and technology</subject><subject>General and physical chemistry</subject><subject>Sonication</subject><subject>Surface physical chemistry</subject><issn>0021-9797</issn><issn>1095-7103</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNp9kE1LxDAQhoMoun78AQ_Si95aJ2mbtOBFZf0AwYueQ5pMMUvbrElXWH-9KVvxJgwMDM-8MzyEnFPIKFB-vcpW2oaMAVQZ8CyO9siCQl2mgkK-TxYAjKa1qMUROQ5hBUBpWdaH5IhWpWBUiAW5W7Yt6jFxbRLcYLUarRuSWOMHJmvlR6s7TIL9xgnp3TD2ztuui-yIie7UNpySg1Z1Ac_mfkLeH5Zv90_py-vj8_3tS6qLSowp0yVVShksDS9NgYDAMAde6lYbnitojGkUg7wS8UvOsW1yLFiTG46mQsxPyNUud-3d5wbDKHsbNHadGtBtguR1kfOqphFkO1B7F4LHVq697ZXfSgpyMidXcjInJ3MSuIyjuHQxp2-aHs3fyqwqApczoIJWXevVMGX8cgw4VKKYrt_sOIwuvix6GbTFQaOxPpqWxtn__vgBr-yNRw</recordid><startdate>20080915</startdate><enddate>20080915</enddate><creator>Poli, Alessandra L.</creator><creator>Batista, Tatiana</creator><creator>Schmitt, Carla C.</creator><creator>Gessner, Fergus</creator><creator>Neumann, Miguel G.</creator><general>Elsevier Inc</general><general>Elsevier</general><scope>IQODW</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20080915</creationdate><title>Effect of sonication on the particle size of montmorillonite clays</title><author>Poli, Alessandra L. ; Batista, Tatiana ; Schmitt, Carla C. ; Gessner, Fergus ; Neumann, Miguel G.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c487t-2c51aaade5d65d4e0e02e3065cfcd63a0bddba2038715566efb3e42b3d6ed8ee3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Chemistry</topic><topic>Clays</topic><topic>Clay–dye interactions</topic><topic>Colloidal state and disperse state</topic><topic>Dyes</topic><topic>Exact sciences and technology</topic><topic>General and physical chemistry</topic><topic>Sonication</topic><topic>Surface physical chemistry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Poli, Alessandra L.</creatorcontrib><creatorcontrib>Batista, Tatiana</creatorcontrib><creatorcontrib>Schmitt, Carla C.</creatorcontrib><creatorcontrib>Gessner, Fergus</creatorcontrib><creatorcontrib>Neumann, Miguel G.</creatorcontrib><collection>Pascal-Francis</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of colloid and interface science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Poli, Alessandra L.</au><au>Batista, Tatiana</au><au>Schmitt, Carla C.</au><au>Gessner, Fergus</au><au>Neumann, Miguel G.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of sonication on the particle size of montmorillonite clays</atitle><jtitle>Journal of colloid and interface science</jtitle><addtitle>J Colloid Interface Sci</addtitle><date>2008-09-15</date><risdate>2008</risdate><volume>325</volume><issue>2</issue><spage>386</spage><epage>390</epage><pages>386-390</pages><issn>0021-9797</issn><eissn>1095-7103</eissn><coden>JCISA5</coden><abstract>This paper reports on the effect of sonication on SAz-1 and SWy-1 montmorillonite suspensions. Changes in the size of the particles of these materials and modifications of their properties have been investigated. The variation of the particle size has been analyzed by DLS (dynamic light scattering). In all cases the clay particles show a bimodal distribution. Sonication resulted in a decrease of the larger modal diameter, as well as a reduction of its volume percentage. Simultaneously, the proportion of the smallest particles increases. After 60 min of sonication, SAz-1 presented a very broad particle size distribution with a modal diameter of 283 nm. On the other hand, the SWy-1 sonicated for 60 min presents a bimodal distribution of particles at 140 and 454 nm. Changes in the properties of the clay suspensions due to sonication were evaluated spectroscopically from dye–clay interactions, using Methylene Blue. The acidic sites present in the interlamellar region, which are responsible for dye protonation, disappeared after sonication of the clay. The changes in the size of the scattering particles and the lack of acidic sites after sonication suggest that sonication induces delamination of the clay particles.
Sonication induces the deaggregation of clay tactoids.</abstract><cop>San Diego, CA</cop><pub>Elsevier Inc</pub><pmid>18572177</pmid><doi>10.1016/j.jcis.2008.06.016</doi><tpages>5</tpages></addata></record> |
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| subjects | Chemistry Clays Clay–dye interactions Colloidal state and disperse state Dyes Exact sciences and technology General and physical chemistry Sonication Surface physical chemistry |
| title | Effect of sonication on the particle size of montmorillonite clays |
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