The influence of modification on structural, textural and adsorption properties of bentonite
Natural bentonite clay from the Bogovina locality in Serbia was Na-exchanged and modified using hexadecyll-trimethylammonium bromide as surfactant and organobentonite was obtained. The influence of modifications on the structural, textural and sorption properties of bentonite was investigated. It wa...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Association of Chemical Engineers of Serbia
2008-01-01
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| Series: | Hemijska Industrija |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/0367-598X/2008/0367-598X0803131J.pdf |
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| author | Jović-Jovičić Nataša R. Milutinović-Nikolić Aleksandra D. Gržetić Ivan A. Banković Predrag T. Marković Branislav Ž. Jovanović Dušan M. |
| author_facet | Jović-Jovičić Nataša R. Milutinović-Nikolić Aleksandra D. Gržetić Ivan A. Banković Predrag T. Marković Branislav Ž. Jovanović Dušan M. |
| author_sort | Jović-Jovičić Nataša R. |
| collection | DOAJ |
| description | Natural bentonite clay from the Bogovina locality in Serbia was Na-exchanged and modified using hexadecyll-trimethylammonium bromide as surfactant and organobentonite was obtained. The influence of modifications on the structural, textural and sorption properties of bentonite was investigated. It was estimated that modifications solely replace exchangeable cations in smectite layers, whereas other admixture minerals (quartz, calcite, feldspar) in bentonite remain unaffected. According to X-ray results the modification lead to changes in the smectite structure by either decreasing, for Na-bentonite, or increasing, for organobentonite, the interplanar spacing, JQOI- The appearance of three new bands in IR spectra of HDTMA-bentonite comparing to those of raw and Na-bentonite assigned to the methylene vibrations confirmed the embedding of aliphatic cations into smectite structure. In organobentonite a significant change in textural properties was observed. In particular, specific surface area dramatically decreased while originally meso and microporous material became almost completely non-porous. Despite almost insignificant specific surface area the synthesized organobentonite due to gained organophyllity of its surface exhibits exquisite adsorption properties toward investigated textile dyes having adsorption capacity approx. 2 times higher than activated carbon. |
| first_indexed | 2024-12-20T05:14:48Z |
| format | Article |
| id | doaj.art-cc348a3c237b41b1b9e561008ba14457 |
| institution | Directory Open Access Journal |
| issn | 0367-598X |
| language | English |
| last_indexed | 2024-12-20T05:14:48Z |
| publishDate | 2008-01-01 |
| publisher | Association of Chemical Engineers of Serbia |
| record_format | Article |
| series | Hemijska Industrija |
| spelling | doaj.art-cc348a3c237b41b1b9e561008ba144572022-12-21T19:52:11ZengAssociation of Chemical Engineers of SerbiaHemijska Industrija0367-598X2008-01-0162313113710.2298/HEMIND0803131JThe influence of modification on structural, textural and adsorption properties of bentoniteJović-Jovičić Nataša R.Milutinović-Nikolić Aleksandra D.Gržetić Ivan A.Banković Predrag T.Marković Branislav Ž.Jovanović Dušan M.Natural bentonite clay from the Bogovina locality in Serbia was Na-exchanged and modified using hexadecyll-trimethylammonium bromide as surfactant and organobentonite was obtained. The influence of modifications on the structural, textural and sorption properties of bentonite was investigated. It was estimated that modifications solely replace exchangeable cations in smectite layers, whereas other admixture minerals (quartz, calcite, feldspar) in bentonite remain unaffected. According to X-ray results the modification lead to changes in the smectite structure by either decreasing, for Na-bentonite, or increasing, for organobentonite, the interplanar spacing, JQOI- The appearance of three new bands in IR spectra of HDTMA-bentonite comparing to those of raw and Na-bentonite assigned to the methylene vibrations confirmed the embedding of aliphatic cations into smectite structure. In organobentonite a significant change in textural properties was observed. In particular, specific surface area dramatically decreased while originally meso and microporous material became almost completely non-porous. Despite almost insignificant specific surface area the synthesized organobentonite due to gained organophyllity of its surface exhibits exquisite adsorption properties toward investigated textile dyes having adsorption capacity approx. 2 times higher than activated carbon.http://www.doiserbia.nb.rs/img/doi/0367-598X/2008/0367-598X0803131J.pdfbentoniteorganobentonitecharacterizationmodificationadsorption |
| spellingShingle | Jović-Jovičić Nataša R. Milutinović-Nikolić Aleksandra D. Gržetić Ivan A. Banković Predrag T. Marković Branislav Ž. Jovanović Dušan M. The influence of modification on structural, textural and adsorption properties of bentonite Hemijska Industrija bentonite organobentonite characterization modification adsorption |
| title | The influence of modification on structural, textural and adsorption properties of bentonite |
| title_full | The influence of modification on structural, textural and adsorption properties of bentonite |
| title_fullStr | The influence of modification on structural, textural and adsorption properties of bentonite |
| title_full_unstemmed | The influence of modification on structural, textural and adsorption properties of bentonite |
| title_short | The influence of modification on structural, textural and adsorption properties of bentonite |
| title_sort | influence of modification on structural textural and adsorption properties of bentonite |
| topic | bentonite organobentonite characterization modification adsorption |
| url | http://www.doiserbia.nb.rs/img/doi/0367-598X/2008/0367-598X0803131J.pdf |
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