Search Results - "Denis Lima Guerra"

Anchored thiol smectite clay—kinetic and thermodynamic studies of divalent copper and cobalt adsorption by Guerra, Denis Lima, Airoldi, Claudio

“…A natural smectite clay sample from Serra de Maicuru, Pará State, Brazil, had aluminum and zirconium polyoxycations inserted within the interlayer space. The…”
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Adsorption and thermodynamic studies of Cu(II) and Zn(II) on organofunctionalized-kaolinite by Guerra, Denis Lima, Airoldi, Claudio, de Sousa, Kaline S.

“…Kaolinite-bearing clay samples from Perus, São Paulo state, Brazil, were used for chemical modification process with dimethyl sulfoxide and…”
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Adsorption of arsenic(III) into modified lamellar Na-magadiite in aqueous medium—Thermodynamic of adsorption process by Guerra, Denis Lima, Pinto, Alane Azevedo, Airoldi, Claudio, Viana, Rúbia Ribeiro

“…Synthetic Na-magadiite sample was used for organofunctionalization process with N-propyldiethylenetrimethoxysilane and…”
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The modified clay performance in adsorption process of Pb2+ ions from aqueous phase—Thermodynamic study by Guerra, Denis Lima, Lemos, Vanda Porpino, Angélica, Rômulo Simões, Airoldi, Claudio

“…Smectite clay sample from Acre state, Amazon region, Brazil, was used for pillaring and organofunctionalization process in the present study. The pillaring…”
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Retraction notice to “Application of Modified Attapulgites as Adsorbents for Uranyl uptake from Aqueous Solutions -Thermodynamic Approach” PSEP 88/1 (2010) 53–61 by Guerra, Denis Lima, Silva, Emiliano Mendonça, Airoldi, Claudio

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WITHDRAWN: Retraction notice to “Application of modified attapulgites as adsorbents for uranyl uptake from aqueous solutions—Thermodynamic approach” [Process Saf. Environ. Prot. 88 (2010) 53–61] by Guerra, Denis Lima, Silva, Emiliano Mendonça, Airoldi, Claudio

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Influence of the acid activation of pillared smectites from Amazon (Brazil) in adsorption process with butylamine by Guerra, Denis Lima, Lemos, Vanda Porpino, Airoldi, Claudio, Angélica, Rômulo Simões

“…The pillared interlayered clays are prepared through charge-compensating cations exchange present in the interlayer space of the swelling clays with aluminum…”
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Retraction notice to “Amazon silicates modified by organofunctionalization for use in removing Hg (II) from aqueous medium: A thermodynamic approach” [INOCHE 12 (2009) 1107–1111] by Guerra, Denis Lima, Airoldi, Claudio, Viana, Rúbia Ribeiro

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Short communication: Adsorption of arsenic(V) into modified lamellar Kenyaite by Guerra, Denis Lima, Airoldi, Claudio, Viana, Rubia Ribeiro

“…The synthetic Kenyaite sample was used for organofunctionalization process with N-propyldiethylenetrimethoxysilane and…”
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Application of modified attapulgites as adsorbents for uranyl uptake from aqueous solution - Thermodynamic approach by Guerra, Denis Lima, Silva, Emiliano Mendonca, Airoldi, Claudio

“…An attapulgite (ATPG) clay sample has been chemically modified with silylating agents N-propyldiethylenetrimethoxysilane and…”
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RETRACTED: Amazon silicates modified by organofunctionalization for use in removing Hg(II) from aqueous medium: A thermodynamic approach by Guerra, Denis Lima, Airoldi, Claudio, Viana, Rúbia Ribeiro

“…This article has been retracted: please see Elsevier Policy on Article Withdrawal ( http://www.elsevier.com/locate/withdrawalpolicy). This article has been…”
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Kinetic and thermodynamic uranyl (II) adsorption process into modified Na-Magadiite and Na-Kanemite by Guerra, Denis Lima, Pinto, Alane Azevedo, de Souza, Janaína Azevedo, Airoldi, Claudio, Viana, Rúbia Ribeiro

“…The compound 2-mercaptopyrimidine (MPY) was attached onto synthetic Na-Magadiite (M) and Na-Kanemite (K) samples by homogeneous route. The final matrices named…”
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RETRACTED: Application of modified attapulgites as adsorbents for uranyl uptake from aqueous solution—Thermodynamic approach by Guerra, Denis Lima, Silva, Emiliano Mendonça, Airoldi, Claudio

“…This article has been retracted at the request of the Editor-in-Chief and Publisher. This article has been retracted at the request of the Editors of Process…”
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Adsorption of arsenic(V) into modified lamellar Kenyaite by Guerra, Denis Lima, Airoldi, Claudio, Viana, Rúbia Ribeiro

“…The synthetic Kenyaite sample was used for organofunctionalization process with N-propyldiethylenetrimethoxysilane and…”
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Adsorption of uranyl(II) into modified lamellar Na-Kanemite by Guerra, Denis Lima, Pinto, Alane Azevedo, Airoldi, Claudio, Viana, Rúbia Ribeiro

“…The aim of the present investigation is to explore the performance of a synthetic Na-Kanemite in unmodified and chemically modified form in adsorption process…”
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Aplicação de Zr/Ti-PILC no processo de adsorção de Cu(II), Co(II) e Ni(II) utilizando modelos físico-químicos de adsorção e termodinâmica do processo Application of Zr/Ti-PILC in the adsorption process of Cu(II), Co(II) and Ni(II) using adsorption physico-chemical models and thermodinamics of the process by Denis Lima Guerra, Claudio Airoldi, Vanda Porpino Lemos, Rômulo Simões Angélica, Rúbia Ribeiro Viana

“…The aim of this investigation is to study how Zr/Ti-PILC adsorbs metals. The physico-chemical proprieties of Zr/Ti-PILC have been optimized with pillarization…”
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Influência da temperatura de formação do íon de Keggin no processo de pilarização de esmectitas by Guerra, Denis Lima, Lemos, Vanda Porpino, Fernandes, Erlyson Farias, Angélica, Rômolo Simões, Da Costa, Marcondes Lima

“…As amostras de esmectita do estado do Pará, Amazônia, Brasil foram caracterizados utilizandoXRD, FTIR e análise textural por curvas isotérmicas…”
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Aplicação de Zr/Ti-PILC no processo de adsorção de Cu(II), Co(II) e Ni(II) utilizando modelos físico-químicos de adsorção e termodinâmica do processo by Guerra, Denis Lima, Airoldi, Claudio, Lemos, Vanda Porpino, Angélica, Rômulo Simões, Viana, Rúbia Ribeiro

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Influência de argilas pilarizadas na decomposição catalítica do óleo de andiroba by Guerra, Denis de Jesus Lima, Lemos, Vanda Porpino, Angélica, Rômulo Simões, Airoldi, Claudio

“…Amostras de esmectitas oriundas do estado do Pará, região amazônica, Brasil, foram usadasem processo de pilarização no presente estudo. As matrizes pilarizadas…”
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Aplicação de Al-PILC na adsorção de Cu2+, Ni2+ e Co2+ utilizando modelos físico-químicos de adsorção by Guerra, Denis de Jesus Lima, Airoldi, Cláudio, Lemos, Vanda Porpino, Angélica, Rômulo Simões, Viana, Rúbia Ribeiro

“…Amostra de esmectita pertencente a Serra de Maicuru (Estado do Pará, Norte doBrasil, região amazônica) foi pilarizada com Al 13 , A Argila pilarizada com…”
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