Navegação Ciências Exatas e da Terra por Autor "Pergher, Sibele Berenice Castellã"
Resultados 1-4 de 4
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Compósitos magnéticos baseados em hidrotalcitas para a remoção de contaminates aniônicos em água
Conceição, Leandro da; Pergher, Sibele Berenice Castellã; Moro, Celso Camilo; Oliveira, Luiz C.A. (2007) [Artigo de periódico]In this work the adsorption features of hydrotalcites (Al, Mg- CO3) and the magnetic properties of iron oxides have been combined in a composite to produce a magnetic adsorbent. These magnetic composites can be used as ... -
Decomposição do NO sobre Cu suportado em zeólitas
Oliveira, Andréa Marins de; Pergher, Sibele Berenice Castellã; Moro, Celso Camilo; Baibich, Ione Maluf (2004) [Artigo de periódico]Direct decomposition of NO on copper supported on zeolite catalysts such as MCM-22 and Beta was compared with that on the thoroughly studied Cu-ZSM-5. The catalysts were prepared by ion-exchange in basic media. They were ... -
Incorporação de dióxido de titânio em zeólitas para emprego em fotocatálise heterogênea
Merg, Jean C.; Rossett, Franciele; Penha, Fábio G.; Pergher, Sibele Berenice Castellã; Petkowicz, Diego Ivan; Santos, Joao Henrique Zimnoch dos (2010) [Artigo de periódico]This work proposes the study of heterogeneous photocatalysis using TiO2 impregnated in zeolites beta, ZSM-5, mordenite, NaXb, NaXp and NaY for the decomposition of methylene blue. The catalysts were characterized by XRD, ... -
Um novo procedimento de síntese da zeólita A empregando argilas naturais
Rigo, Reus Tiago; Pergher, Sibele Berenice Castellã; Petkowicz, Diego Ivan; Santos, Joao Henrique Zimnoch dos (2009) [Artigo de periódico]This work proposes the synthesis of zeolite A by IZA standard proceedures starting from a natural clay. The clay was used in its natural form and after calcination at 900oC. The resulting materials were characterized by ...