Rice Husk Ash Modified with Vanadium Pentoxide
Rice husk collected in Barreiras City, Bahia, Brazil was converted to rice husk ash (RHA) by acidic or basic leaching, followed by calcination. The resulting RHA was modified with vanadium pentoxide (2, 5, or 10 mass% of V2O5). The modified RHA samples were characterized by X-ray diffraction (XRD) ...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Universidade Federal de Mato Grosso do Sul
2017-05-01
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| Series: | Orbital: The Electronic Journal of Chemistry |
| Subjects: | |
| Online Access: | https://periodicos.ufms.br/index.php/orbital/article/view/16504 |
| _version_ | 1797946863442198528 |
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| author | Isaias Alves Rodrigues Stéfane Oliveira de Lira Tiago dos Santos Estrela Cailon França de Castro Valdeilson Souza Braga |
| author_facet | Isaias Alves Rodrigues Stéfane Oliveira de Lira Tiago dos Santos Estrela Cailon França de Castro Valdeilson Souza Braga |
| author_sort | Isaias Alves Rodrigues |
| collection | DOAJ |
| description | Rice husk collected in Barreiras City, Bahia, Brazil was converted to rice husk ash (RHA) by acidic or basic leaching, followed by calcination. The resulting RHA was modified with vanadium pentoxide (2, 5, or 10 mass% of V2O5). The modified RHA samples were characterized by X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). RHA exhibited FTIR bands associated with silica. After modification of acid-leached RHA with vanadium, the XRD data indicated the formation of V2O5 phases. Base-leached RHA modified with vanadium pentoxide showed the presence of the V2O5 phase only in the sample containing 10 mass% V2O5. The FTIR data indicated the formation of cristobalite, where bands associated with Si-O-V interactions were observed only for the sample with 10 mass% V2O5 prepared with acid-leached RHA.
DOI: http://dx.doi.org/10.17807/orbital.v9i2.916
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| first_indexed | 2024-04-10T21:17:46Z |
| format | Article |
| id | doaj.art-b3d424cefe3b4bff97ef7226cdf1cd81 |
| institution | Directory Open Access Journal |
| issn | 1984-6428 |
| language | English |
| last_indexed | 2024-04-10T21:17:46Z |
| publishDate | 2017-05-01 |
| publisher | Universidade Federal de Mato Grosso do Sul |
| record_format | Article |
| series | Orbital: The Electronic Journal of Chemistry |
| spelling | doaj.art-b3d424cefe3b4bff97ef7226cdf1cd812023-01-20T10:59:03ZengUniversidade Federal de Mato Grosso do SulOrbital: The Electronic Journal of Chemistry1984-64282017-05-0192Rice Husk Ash Modified with Vanadium PentoxideIsaias Alves Rodrigues0Stéfane Oliveira de Lira1Tiago dos Santos Estrela2Cailon França de Castro3Valdeilson Souza Braga4Universidade Federal do Oeste da BahiaUniversidade Federal do Oeste da BahiaInstituto Federal de Educação, Ciência e Tecnologia da Bahia - IFBAUniversidade Federal do Oeste da BahiaUniversidade Federal do Oeste da BahiaRice husk collected in Barreiras City, Bahia, Brazil was converted to rice husk ash (RHA) by acidic or basic leaching, followed by calcination. The resulting RHA was modified with vanadium pentoxide (2, 5, or 10 mass% of V2O5). The modified RHA samples were characterized by X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). RHA exhibited FTIR bands associated with silica. After modification of acid-leached RHA with vanadium, the XRD data indicated the formation of V2O5 phases. Base-leached RHA modified with vanadium pentoxide showed the presence of the V2O5 phase only in the sample containing 10 mass% V2O5. The FTIR data indicated the formation of cristobalite, where bands associated with Si-O-V interactions were observed only for the sample with 10 mass% V2O5 prepared with acid-leached RHA. DOI: http://dx.doi.org/10.17807/orbital.v9i2.916 https://periodicos.ufms.br/index.php/orbital/article/view/16504catalystsrice husk ashvanadium pentoxide |
| spellingShingle | Isaias Alves Rodrigues Stéfane Oliveira de Lira Tiago dos Santos Estrela Cailon França de Castro Valdeilson Souza Braga Rice Husk Ash Modified with Vanadium Pentoxide Orbital: The Electronic Journal of Chemistry catalysts rice husk ash vanadium pentoxide |
| title | Rice Husk Ash Modified with Vanadium Pentoxide |
| title_full | Rice Husk Ash Modified with Vanadium Pentoxide |
| title_fullStr | Rice Husk Ash Modified with Vanadium Pentoxide |
| title_full_unstemmed | Rice Husk Ash Modified with Vanadium Pentoxide |
| title_short | Rice Husk Ash Modified with Vanadium Pentoxide |
| title_sort | rice husk ash modified with vanadium pentoxide |
| topic | catalysts rice husk ash vanadium pentoxide |
| url | https://periodicos.ufms.br/index.php/orbital/article/view/16504 |
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