Transition phases of zeolite Faujasite type to Sodalite by thermal treatment
The zeolites can have several functions as catalysts (biofuel production) and molecular sieves (treatment of contaminated areas). This study aims to characterize the zeolites obtained in the transition of a Faujasite like zeolite into a Sodalite, when submitted to different thermal treatment times....
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Universidade Estadual de Londrina
2015-10-01
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| Series: | Semina: Ciências Exatas e Tecnológicas |
| Subjects: | |
| Online Access: | http://www.uel.br/revistas/uel/index.php/semexatas/article/view/20793/17142 |
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| author | Katia K. Kaminishikawahara Laura J. Pereira Éder C. F. de Souza Maria Elena Payret Arrúa Sandra Regina Masetto Antunes André V. C. de Andrade Helton J. Alves Augusto C. Antunes |
| author_facet | Katia K. Kaminishikawahara Laura J. Pereira Éder C. F. de Souza Maria Elena Payret Arrúa Sandra Regina Masetto Antunes André V. C. de Andrade Helton J. Alves Augusto C. Antunes |
| author_sort | Katia K. Kaminishikawahara |
| collection | DOAJ |
| description | The zeolites can have several functions as catalysts (biofuel production) and molecular sieves (treatment of contaminated areas). This study aims to characterize the zeolites obtained in the transition of a Faujasite like zeolite into a Sodalite, when submitted to different thermal treatment times. The synthesized zeolites were characterized by X-ray diffraction where the crystalline phases were identified: Faujasite, Sodalite, SiO2 and amorphous material. The 4 hours heat treatment produces zeolite crystal structure similar to Faujasite, having basic sites, surface area of 552.7 m2 g-1 , and pore volume of 0.3391 cm3 g-1. With increasing time of heat treatment was observed the transition to the Sodalite phase witch containing 0.277 mmol g-1 of basic active sites with surface area of 11.38 m2 g-1 and pore volume of 0.0651 cm3 g-1. By the Rietveld method was identified and quantified the presence of Sodalite and Hidrossodalite in samples with 24 and 30 hours of reaction times. |
| first_indexed | 2024-04-13T16:14:45Z |
| format | Article |
| id | doaj.art-1f157f2f730241eeb309e832fc5ccc2c |
| institution | Directory Open Access Journal |
| issn | 1676-5451 1679-0375 |
| language | English |
| last_indexed | 2024-04-13T16:14:45Z |
| publishDate | 2015-10-01 |
| publisher | Universidade Estadual de Londrina |
| record_format | Article |
| series | Semina: Ciências Exatas e Tecnológicas |
| spelling | doaj.art-1f157f2f730241eeb309e832fc5ccc2c2022-12-22T02:40:05ZengUniversidade Estadual de LondrinaSemina: Ciências Exatas e Tecnológicas1676-54511679-03752015-10-01362718410.5433/1679-0375.2015v36n2p71Transition phases of zeolite Faujasite type to Sodalite by thermal treatmentKatia K. Kaminishikawahara0 Laura J. Pereira1Éder C. F. de Souza2Maria Elena Payret Arrúa3Sandra Regina Masetto Antunes4André V. C. de Andrade5Helton J. Alves6Augusto C. Antunes7UEPGUEPGUEPGUEPGUEPGUEPGUFPRUEPGThe zeolites can have several functions as catalysts (biofuel production) and molecular sieves (treatment of contaminated areas). This study aims to characterize the zeolites obtained in the transition of a Faujasite like zeolite into a Sodalite, when submitted to different thermal treatment times. The synthesized zeolites were characterized by X-ray diffraction where the crystalline phases were identified: Faujasite, Sodalite, SiO2 and amorphous material. The 4 hours heat treatment produces zeolite crystal structure similar to Faujasite, having basic sites, surface area of 552.7 m2 g-1 , and pore volume of 0.3391 cm3 g-1. With increasing time of heat treatment was observed the transition to the Sodalite phase witch containing 0.277 mmol g-1 of basic active sites with surface area of 11.38 m2 g-1 and pore volume of 0.0651 cm3 g-1. By the Rietveld method was identified and quantified the presence of Sodalite and Hidrossodalite in samples with 24 and 30 hours of reaction times.http://www.uel.br/revistas/uel/index.php/semexatas/article/view/20793/17142ZeolitesCatalystsMolecular SievesFaujasiteSodalite |
| spellingShingle | Katia K. Kaminishikawahara Laura J. Pereira Éder C. F. de Souza Maria Elena Payret Arrúa Sandra Regina Masetto Antunes André V. C. de Andrade Helton J. Alves Augusto C. Antunes Transition phases of zeolite Faujasite type to Sodalite by thermal treatment Semina: Ciências Exatas e Tecnológicas Zeolites Catalysts Molecular Sieves Faujasite Sodalite |
| title | Transition phases of zeolite Faujasite type to Sodalite by thermal treatment |
| title_full | Transition phases of zeolite Faujasite type to Sodalite by thermal treatment |
| title_fullStr | Transition phases of zeolite Faujasite type to Sodalite by thermal treatment |
| title_full_unstemmed | Transition phases of zeolite Faujasite type to Sodalite by thermal treatment |
| title_short | Transition phases of zeolite Faujasite type to Sodalite by thermal treatment |
| title_sort | transition phases of zeolite faujasite type to sodalite by thermal treatment |
| topic | Zeolites Catalysts Molecular Sieves Faujasite Sodalite |
| url | http://www.uel.br/revistas/uel/index.php/semexatas/article/view/20793/17142 |
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