Caracterização e propriedades do material coloidal nanoestruturado β-FeOOH/bentonita
A new mixed material was obtained through the combination of the suspensions of iron oxy-hydroxide and bentonite clay, denoted BFe. Analysis of its structure (XRD, Mossbauer and TGA) and composition (AAS) suggests the maintenance of the layer structure of the clay and an increase in the thermal stability of the BFe. Electrochemical studies performed in different electrolytes show that only in an alkaline medium it is possible to observe the redox peaks relative to the processes involving Fe+2/Fe+3 pair. Tests that evaluated the potential use of the photo-Fenton process showed an efficient degradation process of the dyes in significantly reduced reaction times.
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Sociedade Brasileira de Química
2009
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oai:scielo:S0100-404220090008000052009-11-26Caracterização e propriedades do material coloidal nanoestruturado β-FeOOH/bentonitaAnaissi,Fauze JacóVillalba,Juan CarloFujiwara,Sérgio ToshioCótica,Luiz FernandoSouza,Cláudio Roberto Lima deZamora-Peralta,Patrício iron hydroxide bentonite clay sol-gel materials A new mixed material was obtained through the combination of the suspensions of iron oxy-hydroxide and bentonite clay, denoted BFe. Analysis of its structure (XRD, Mossbauer and TGA) and composition (AAS) suggests the maintenance of the layer structure of the clay and an increase in the thermal stability of the BFe. Electrochemical studies performed in different electrolytes show that only in an alkaline medium it is possible to observe the redox peaks relative to the processes involving Fe+2/Fe+3 pair. Tests that evaluated the potential use of the photo-Fenton process showed an efficient degradation process of the dyes in significantly reduced reaction times.info:eu-repo/semantics/openAccessSociedade Brasileira de QuímicaQuímica Nova v.32 n.8 20092009-01-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000800005pt10.1590/S0100-40422009000800005 |
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Anaissi,Fauze Jacó Villalba,Juan Carlo Fujiwara,Sérgio Toshio Cótica,Luiz Fernando Souza,Cláudio Roberto Lima de Zamora-Peralta,Patrício |
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Anaissi,Fauze Jacó Villalba,Juan Carlo Fujiwara,Sérgio Toshio Cótica,Luiz Fernando Souza,Cláudio Roberto Lima de Zamora-Peralta,Patrício Caracterização e propriedades do material coloidal nanoestruturado β-FeOOH/bentonita |
| author_facet |
Anaissi,Fauze Jacó Villalba,Juan Carlo Fujiwara,Sérgio Toshio Cótica,Luiz Fernando Souza,Cláudio Roberto Lima de Zamora-Peralta,Patrício |
| author_sort |
Anaissi,Fauze Jacó |
| title |
Caracterização e propriedades do material coloidal nanoestruturado β-FeOOH/bentonita |
| title_short |
Caracterização e propriedades do material coloidal nanoestruturado β-FeOOH/bentonita |
| title_full |
Caracterização e propriedades do material coloidal nanoestruturado β-FeOOH/bentonita |
| title_fullStr |
Caracterização e propriedades do material coloidal nanoestruturado β-FeOOH/bentonita |
| title_full_unstemmed |
Caracterização e propriedades do material coloidal nanoestruturado β-FeOOH/bentonita |
| title_sort |
caracterização e propriedades do material coloidal nanoestruturado β-feooh/bentonita |
| description |
A new mixed material was obtained through the combination of the suspensions of iron oxy-hydroxide and bentonite clay, denoted BFe. Analysis of its structure (XRD, Mossbauer and TGA) and composition (AAS) suggests the maintenance of the layer structure of the clay and an increase in the thermal stability of the BFe. Electrochemical studies performed in different electrolytes show that only in an alkaline medium it is possible to observe the redox peaks relative to the processes involving Fe+2/Fe+3 pair. Tests that evaluated the potential use of the photo-Fenton process showed an efficient degradation process of the dyes in significantly reduced reaction times. |
| publisher |
Sociedade Brasileira de Química |
| publishDate |
2009 |
| url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000800005 |
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