Use of rice husk ash as only source of silica in the formation of mesoporous materials

This paper reports the synthesis of molecular sieves similar to MCM-41 using rice husk ash as only source of silica. For comparison purposes, a standard synthesis was performed using aerosil 200 commercial silica. The rice husk silica was obtained by heating treatment at 600 ºC and leaching for 2 h...

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Principais autores:	Schwanke, A. J., Melo, D. M. A., Silva, A. O., Pergher, Sibele Berenice Castellã
Formato:	article
Idioma:	English
Publicado em:	Associação Brasileira de Cerâmica
Assuntos:	MCM-41 Rice husk ash Mesoporous materials
Endereço do item:	https://repositorio.ufrn.br/jspui/handle/123456789/29602
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id	ri-123456789-29602
record_format	dspace
spelling	ri-123456789-296022021-02-15T19:28:13Z Use of rice husk ash as only source of silica in the formation of mesoporous materials Schwanke, A. J. Melo, D. M. A. Silva, A. O. Pergher, Sibele Berenice Castellã MCM-41 Rice husk ash Mesoporous materials This paper reports the synthesis of molecular sieves similar to MCM-41 using rice husk ash as only source of silica. For comparison purposes, a standard synthesis was performed using aerosil 200 commercial silica. The rice husk silica was obtained by heating treatment at 600 ºC and leaching for 2 h in reflux with HCl 1mol.L-1 and used in the synthesis. The samples prepared were characterized by N2 adsorption, X-ray diffraction (XRD), scanning electronic microscopy (SEM) and thermogravimetric analysis (TG). By type-IV adsorption isotherms, the formation of mesoporous materials was observed. XRD showed the formation of hexagonal unidirectional pore materials similar to MCM-41. By SEM, it could be observed that the rice husk has fibrous aspect and that synthesis using calcined and leached rice husk did not react entirely because silica was only partially dissolved 2020-07-14T15:29:56Z 2020-07-14T15:29:56Z 2013 article SCHWANKE, A. J.; MELO, D. M. A.; SILVA, A. O.; PERGHER, S. B. C. Use of rice husk ash as only source of silica in the formation of mesoporous materials. Cerâmica, [s.l.], v. 59, n. 349, p. 181-185, 2013. ISSN 0366-6913. Disponível em: https://www.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132013000100022&lng=en&tlng=en. Acesso em: 19 maio 2020. http://dx.doi.org/10.1590/S0366-69132013000100022 0366-6913 https://repositorio.ufrn.br/jspui/handle/123456789/29602 10.1590/s0366-69132013000100022 en Attribution-NonCommercial 3.0 Brazil http://creativecommons.org/licenses/by-nc/3.0/br/ application/pdf Associação Brasileira de Cerâmica
institution	Repositório Institucional
collection	RI - UFRN
language	English
topic	MCM-41 Rice husk ash Mesoporous materials
spellingShingle	MCM-41 Rice husk ash Mesoporous materials Schwanke, A. J. Melo, D. M. A. Silva, A. O. Pergher, Sibele Berenice Castellã Use of rice husk ash as only source of silica in the formation of mesoporous materials
description	This paper reports the synthesis of molecular sieves similar to MCM-41 using rice husk ash as only source of silica. For comparison purposes, a standard synthesis was performed using aerosil 200 commercial silica. The rice husk silica was obtained by heating treatment at 600 ºC and leaching for 2 h in reflux with HCl 1mol.L-1 and used in the synthesis. The samples prepared were characterized by N2 adsorption, X-ray diffraction (XRD), scanning electronic microscopy (SEM) and thermogravimetric analysis (TG). By type-IV adsorption isotherms, the formation of mesoporous materials was observed. XRD showed the formation of hexagonal unidirectional pore materials similar to MCM-41. By SEM, it could be observed that the rice husk has fibrous aspect and that synthesis using calcined and leached rice husk did not react entirely because silica was only partially dissolved
format	article
author	Schwanke, A. J. Melo, D. M. A. Silva, A. O. Pergher, Sibele Berenice Castellã
author_facet	Schwanke, A. J. Melo, D. M. A. Silva, A. O. Pergher, Sibele Berenice Castellã
author_sort	Schwanke, A. J.
title	Use of rice husk ash as only source of silica in the formation of mesoporous materials
title_short	Use of rice husk ash as only source of silica in the formation of mesoporous materials
title_full	Use of rice husk ash as only source of silica in the formation of mesoporous materials
title_fullStr	Use of rice husk ash as only source of silica in the formation of mesoporous materials
title_full_unstemmed	Use of rice husk ash as only source of silica in the formation of mesoporous materials
title_sort	use of rice husk ash as only source of silica in the formation of mesoporous materials
publisher	Associação Brasileira de Cerâmica
publishDate	2020
url	https://repositorio.ufrn.br/jspui/handle/123456789/29602
work_keys_str_mv	AT schwankeaj useofricehuskashasonlysourceofsilicaintheformationofmesoporousmaterials AT melodma useofricehuskashasonlysourceofsilicaintheformationofmesoporousmaterials AT silvaao useofricehuskashasonlysourceofsilicaintheformationofmesoporousmaterials AT perghersibeleberenicecastella useofricehuskashasonlysourceofsilicaintheformationofmesoporousmaterials
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Use of rice husk ash as only source of silica in the formation of mesoporous materials

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