Study of the Surface Adsorption Properties of Feldspar
The adsorption properties of Polish feldspar towards hydrocarbons from the gaseous phase have been studied and the adsorption energy distribution functions for n-octane, benzene and toluene are presented. It appears that there are three types of adsorption sites present on the feldspar surface exami...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SAGE Publications
1999-03-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1177/026361749901700201 |
| _version_ | 1797288451202088960 |
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| author | Ryszard Dobrowolski Elzbieta Stefaniak Bogdan Biliński Piotr Staszczuk |
| author_facet | Ryszard Dobrowolski Elzbieta Stefaniak Bogdan Biliński Piotr Staszczuk |
| author_sort | Ryszard Dobrowolski |
| collection | DOAJ |
| description | The adsorption properties of Polish feldspar towards hydrocarbons from the gaseous phase have been studied and the adsorption energy distribution functions for n-octane, benzene and toluene are presented. It appears that there are three types of adsorption sites present on the feldspar surface examined. Treatment of feldspar with aqua regia led to the elimination of low-energy interaction centres. The adsorption properties of the raw and leached feldspar with respect to Cr VI ions have also been studied. The kinetic curves for the sorption of Cr VI ions exhibited two stages which suggest two different mechanisms of sorption. The adsorption capacity depended on the pH with a maximum for pH = 4.8. The excess adsorption isotherm of Cr VI on the raw feldspar surface showed a maximum value at 20 mmol/dm3 equilibrium concentration of Cr VI ions. |
| first_indexed | 2024-03-07T18:49:41Z |
| format | Article |
| id | doaj.art-a7c6a7ba07fc4f6380bac6afddb9be56 |
| institution | Directory Open Access Journal |
| issn | 0263-6174 2048-4038 |
| language | English |
| last_indexed | 2024-03-07T18:49:41Z |
| publishDate | 1999-03-01 |
| publisher | SAGE Publications |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj.art-a7c6a7ba07fc4f6380bac6afddb9be562024-03-02T01:58:15ZengSAGE PublicationsAdsorption Science & Technology0263-61742048-40381999-03-011710.1177/026361749901700201Study of the Surface Adsorption Properties of FeldsparRyszard Dobrowolski0Elzbieta Stefaniak1Bogdan Biliński2Piotr Staszczuk3Analytical Laboratory, Faculty of Chemistry, Maria Curie-Sktodowska University, pl. M. Curie-Sklodowskiej 3, 20-031 Lublin, Poland.Department of Chemistry. Faculty of Mathematics and Science. Catholic University of Lublin, Al. Krasnicka 102, 20-031 Lublin, Poland.Department of lnterfacial Phenomena, Faculty of Chemistry, Maria Curie-Sklodowska University, pi. M. Curie-Sklodowskiej 3, 20-031 Lublin, Poland.Department of Physicochemistry of Solid Surfaces, Faculty of Chemistry, Maria Curie-Sklodowska University, pi. Maria Curie-Sklodowskiej 3,20-031 Lublin, Poland.The adsorption properties of Polish feldspar towards hydrocarbons from the gaseous phase have been studied and the adsorption energy distribution functions for n-octane, benzene and toluene are presented. It appears that there are three types of adsorption sites present on the feldspar surface examined. Treatment of feldspar with aqua regia led to the elimination of low-energy interaction centres. The adsorption properties of the raw and leached feldspar with respect to Cr VI ions have also been studied. The kinetic curves for the sorption of Cr VI ions exhibited two stages which suggest two different mechanisms of sorption. The adsorption capacity depended on the pH with a maximum for pH = 4.8. The excess adsorption isotherm of Cr VI on the raw feldspar surface showed a maximum value at 20 mmol/dm3 equilibrium concentration of Cr VI ions.https://doi.org/10.1177/026361749901700201 |
| spellingShingle | Ryszard Dobrowolski Elzbieta Stefaniak Bogdan Biliński Piotr Staszczuk Study of the Surface Adsorption Properties of Feldspar Adsorption Science & Technology |
| title | Study of the Surface Adsorption Properties of Feldspar |
| title_full | Study of the Surface Adsorption Properties of Feldspar |
| title_fullStr | Study of the Surface Adsorption Properties of Feldspar |
| title_full_unstemmed | Study of the Surface Adsorption Properties of Feldspar |
| title_short | Study of the Surface Adsorption Properties of Feldspar |
| title_sort | study of the surface adsorption properties of feldspar |
| url | https://doi.org/10.1177/026361749901700201 |
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