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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
15/01/2016 |
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Data da última atualização: |
26/05/2022 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
MORAES, L. B. de; RUSCHEL, A. R.; PINTO, M. V. P.; BAHIA, P. T. F.; CARNEIRO, F. da S. |
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Afiliação: |
Lucivando Barbosa de MORAES, GRADUANDO UFRA; ADEMIR ROBERTO RUSCHEL, CPATU; Marcos Vinicius Prestes PINTO, GRADUANDO UFRA; Pamela Thais Figueira BAHIA, GRADUANDA UFRA; Francimary da Silva CARNEIRO, DOUTORANDA UFRA. |
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Título: |
Aspectos florísticos e fitossociológicos de palmeiras (Arecaceae) em florestas adjacentes aos rios Pará e Amazonas. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
In: SEMINÁRIO ANUAL DE INICIAÇÃO CIENTÍFICA DA UFRA, 13., 2015, Belém, PA. Anais. Belém, PA: Universidade Federal Rural da Amazônia, 2015. |
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Idioma: |
Português |
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Palavras-Chave: |
Áreas alagadas; Estrutura florestal; Floresta de várzea. |
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Thesagro: |
Botânica. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/137081/1/AspectosFloristicos.pdf
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Marc: |
LEADER 00734nam a2200193 a 4500
001 2034058
005 2022-05-26
008 2015 bl uuuu u00u1 u #d
100 1 $aMORAES, L. B. de
245 $aAspectos florísticos e fitossociológicos de palmeiras (Arecaceae) em florestas adjacentes aos rios Pará e Amazonas.$h[electronic resource]
260 $aIn: SEMINÁRIO ANUAL DE INICIAÇÃO CIENTÍFICA DA UFRA, 13., 2015, Belém, PA. Anais. Belém, PA: Universidade Federal Rural da Amazônia$c2015
650 $aBotânica
653 $aÁreas alagadas
653 $aEstrutura florestal
653 $aFloresta de várzea
700 1 $aRUSCHEL, A. R.
700 1 $aPINTO, M. V. P.
700 1 $aBAHIA, P. T. F.
700 1 $aCARNEIRO, F. da S.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
06/04/2021 |
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Data da última atualização: |
10/06/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
OLIVEIRA, A. M. S.; PARIS, E. C.; GIRALDI, T. R. |
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Afiliação: |
ELAINE CRISTINA PARIS, CNPDIA. |
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Título: |
GIS zeolite obtained by the microwave-hydrothermal method: Synthesis and evaluation of its adsorptive capacity. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Materials Chemistry and Physics, v. 260, 124142, 2021. |
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Páginas: |
260?271 |
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ISSN: |
0254-0584 |
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DOI: |
https://doi.org/10.1016/j.matchemphys.2020.124142 R |
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Idioma: |
Inglês |
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Conteúdo: |
Developing synthetic routes that lead to the formation of zeolites with small porous systems, such as GIS zeolites, has attracted great interest since these structures have unique properties in catalysis and adsorption, but are still underused. In this study, GIS type zeolite nanoparticles were synthesized by the microwave-assisted hydrothermal method. Two synthesis routes were evaluated using two different silica precursor sources. Silicon dioxide was used in crystalline and amorphous forms. The material was characterized by X-ray diffraction (XRD), nitrogen physisorption, zeta potential (ZP), high-resolution scanning electron microscopy (SEM-FEG), highresolution transmission electron microscopy (HRTEM) and by energy dispersive X-ray spectroscopy (EDS). The obtained crystalline phase was the Na–P1 type zeolite (GIS structure). The BET surface area of the particles was 17 m2 /g and the average pore size was 4 nm. These zeolites were used for Mn(II) ions adsorption in aqueous medium. Considering the studied adsorption conditions, adsorption was higher at pH 8, using an adsorbent concentration of 1 g/L and with 30 min of contact time. The kinetic model that best described the process was the pseudo-second order model and the isotherm model that best fitted to the experimental data was the Langmuir model, which indicates adsorption in monolayers and high affinity between the adsorbate and the adsorbent. The maximum adsorption capacity was 44.05 mg/g. |
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Palavras-Chave: |
GIS zeolites; Manganese (II); Microwave synthesis. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02169naa a2200217 a 4500
001 2131082
005 2022-06-10
008 2021 bl uuuu u00u1 u #d
022 $a0254-0584
024 7 $ahttps://doi.org/10.1016/j.matchemphys.2020.124142 R$2DOI
100 1 $aOLIVEIRA, A. M. S.
245 $aGIS zeolite obtained by the microwave-hydrothermal method$bSynthesis and evaluation of its adsorptive capacity.$h[electronic resource]
260 $c2021
300 $a260?271
520 $aDeveloping synthetic routes that lead to the formation of zeolites with small porous systems, such as GIS zeolites, has attracted great interest since these structures have unique properties in catalysis and adsorption, but are still underused. In this study, GIS type zeolite nanoparticles were synthesized by the microwave-assisted hydrothermal method. Two synthesis routes were evaluated using two different silica precursor sources. Silicon dioxide was used in crystalline and amorphous forms. The material was characterized by X-ray diffraction (XRD), nitrogen physisorption, zeta potential (ZP), high-resolution scanning electron microscopy (SEM-FEG), highresolution transmission electron microscopy (HRTEM) and by energy dispersive X-ray spectroscopy (EDS). The obtained crystalline phase was the Na–P1 type zeolite (GIS structure). The BET surface area of the particles was 17 m2 /g and the average pore size was 4 nm. These zeolites were used for Mn(II) ions adsorption in aqueous medium. Considering the studied adsorption conditions, adsorption was higher at pH 8, using an adsorbent concentration of 1 g/L and with 30 min of contact time. The kinetic model that best described the process was the pseudo-second order model and the isotherm model that best fitted to the experimental data was the Langmuir model, which indicates adsorption in monolayers and high affinity between the adsorbate and the adsorbent. The maximum adsorption capacity was 44.05 mg/g.
653 $aGIS zeolites
653 $aManganese (II)
653 $aMicrowave synthesis
700 1 $aPARIS, E. C.
700 1 $aGIRALDI, T. R.
773 $tMaterials Chemistry and Physics$gv. 260, 124142, 2021.
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Embrapa Instrumentação (CNPDIA) |
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