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Combination of natural silica and alumina sources for synthesis of MCM-22 zeolite
Zeolite has become a promising material that can potentially play a pivotal role in resolving environmental crises. Among zeolite families, MCM-22 zeolite shows outstanding intrinsic properties associated with the topology and porous structure, offering ion-exchange advantages for catalytic activity...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10415882/ https://www.ncbi.nlm.nih.gov/pubmed/37576328 http://dx.doi.org/10.1016/j.heliyon.2023.e18772 |
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author | Tanwongwan, Worapak Chollacoop, Nuwong Faungnawakij, Kajornsak Assabumrungrat, Suttichai Nakhanivej, Puritut Eiad-ua, Apiluck |
author_facet | Tanwongwan, Worapak Chollacoop, Nuwong Faungnawakij, Kajornsak Assabumrungrat, Suttichai Nakhanivej, Puritut Eiad-ua, Apiluck |
author_sort | Tanwongwan, Worapak |
collection | PubMed |
description | Zeolite has become a promising material that can potentially play a pivotal role in resolving environmental crises. Among zeolite families, MCM-22 zeolite shows outstanding intrinsic properties associated with the topology and porous structure, offering ion-exchange advantages for catalytic activity processes. The synthesis of MCM-22 zeolite becomes challenging when concerning the cost and catalytic performance. To overcome this bottleneck, we demonstrate a sustainable route of a hydrothermal process using natural resources as starting materials. Rice husk from agricultural waste was used as a silica source while natural clays (kaolin and bentonite) were applied as alumina sources. The products from natural sources were compared with the use of commercial starting materials, e.g., NaAlO(2) (for alumina) and Na(2)SiO(3) and TEOS (for silica), in points of crystal, compositional, and morphological views. We showed that the high purity of MCM-22 zeolite can be obtained from rice husk silica (RHS) and aluminosilicate gel (ASG) extracted from kaolin, while the use of ASG extracted from bentonite tended to be unsuitable to generate the zeolite formation. We also studied the effects of reaction time and the ratio of RHS/ASG on the crystallinity and surface area of MCM-22. The architecture and acidity of an optimal product were explored by Nuclear magnetic resonance spectroscopy and Temperature-programmed desorption of ammonia, demonstrating the success of achieving well acidity. |
format | Online Article Text |
id | pubmed-10415882 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-104158822023-08-12 Combination of natural silica and alumina sources for synthesis of MCM-22 zeolite Tanwongwan, Worapak Chollacoop, Nuwong Faungnawakij, Kajornsak Assabumrungrat, Suttichai Nakhanivej, Puritut Eiad-ua, Apiluck Heliyon Research Article Zeolite has become a promising material that can potentially play a pivotal role in resolving environmental crises. Among zeolite families, MCM-22 zeolite shows outstanding intrinsic properties associated with the topology and porous structure, offering ion-exchange advantages for catalytic activity processes. The synthesis of MCM-22 zeolite becomes challenging when concerning the cost and catalytic performance. To overcome this bottleneck, we demonstrate a sustainable route of a hydrothermal process using natural resources as starting materials. Rice husk from agricultural waste was used as a silica source while natural clays (kaolin and bentonite) were applied as alumina sources. The products from natural sources were compared with the use of commercial starting materials, e.g., NaAlO(2) (for alumina) and Na(2)SiO(3) and TEOS (for silica), in points of crystal, compositional, and morphological views. We showed that the high purity of MCM-22 zeolite can be obtained from rice husk silica (RHS) and aluminosilicate gel (ASG) extracted from kaolin, while the use of ASG extracted from bentonite tended to be unsuitable to generate the zeolite formation. We also studied the effects of reaction time and the ratio of RHS/ASG on the crystallinity and surface area of MCM-22. The architecture and acidity of an optimal product were explored by Nuclear magnetic resonance spectroscopy and Temperature-programmed desorption of ammonia, demonstrating the success of achieving well acidity. Elsevier 2023-07-28 /pmc/articles/PMC10415882/ /pubmed/37576328 http://dx.doi.org/10.1016/j.heliyon.2023.e18772 Text en © 2023 Published by Elsevier Ltd. https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Research Article Tanwongwan, Worapak Chollacoop, Nuwong Faungnawakij, Kajornsak Assabumrungrat, Suttichai Nakhanivej, Puritut Eiad-ua, Apiluck Combination of natural silica and alumina sources for synthesis of MCM-22 zeolite |
title | Combination of natural silica and alumina sources for synthesis of MCM-22 zeolite |
title_full | Combination of natural silica and alumina sources for synthesis of MCM-22 zeolite |
title_fullStr | Combination of natural silica and alumina sources for synthesis of MCM-22 zeolite |
title_full_unstemmed | Combination of natural silica and alumina sources for synthesis of MCM-22 zeolite |
title_short | Combination of natural silica and alumina sources for synthesis of MCM-22 zeolite |
title_sort | combination of natural silica and alumina sources for synthesis of mcm-22 zeolite |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10415882/ https://www.ncbi.nlm.nih.gov/pubmed/37576328 http://dx.doi.org/10.1016/j.heliyon.2023.e18772 |
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