Výsledky vyhledávání - "Eunice F.S. Vieira"

The influence of low amounts on in situ-polymerized bisphenol-diamine net in cement slurries prepared in seawater – structural analysis after long-term contact with in situ-generated mud-acid fracturing fluid

Autor: Eunice F.S. Vieira, Ivory Marcos Gomes dos Santos, Joenesson Fílip Santos Ribeiro, Gwenn Le Saout, Danilo Oliveira Santos, Antonio R. Cestari

Publikováno v: Matéria (Rio de Janeiro) v.25 n.1 2020
Matéria (Rio de Janeiro. Online)
instacron:RLAM
Revista Matéria
Revista Matéria, Rede Latino-Americana de Materiais-Latin-American Materials Network, 2020, 25 (1), ⟨10.1590/s1517-707620200001.0925⟩

International audience; Inadequate zonal isolation in oil wells can provoke safety and environmental problems. New cement slurries can avoid such problems. In this work, novel cement slurries were prepared in the presence of seawater with in situ-for

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ebf4974eb1dec2224fc8b5b50da8a12
https://doi.org/10.1590/s1517-707620200001.0925

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A New Environmentally Safe Formulation and of Low Cost for Prolonged Release System of Atrazine and Diuron

Autor: Antonio R. Cestari, Eunice F.S. Vieira, Maria Lara Palmeira de Macedo Arguelho, Gracy Karla da R. Cortes, Daniel Muniz Oliveira

Publikováno v: Orbital: The Electronic Journal of Chemistry, Vol 9, Iss 3, Pp 181-187 (2017)

Diuron and atrazine were incorporated in new formulations developed with the purpose to improve herbicides action through release systems, as well as to reduce the environmental toxicity. A low cost formulation (ALG/ESC) was obtained by combining sod

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e98dcd2f6d5a1d9cfeeefb456ed2563
http://orbital.ufms.br/index.php/Chemistry/article/view/994

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Chemical modification of in natura collagen by acidic catalysis – structural characterization and mechanistic features of Cd(II) sorption by solution microcalorimetry

Autor: Eunice F.S. Vieira, Marcos A.S. Andrade, Esdras S. Silva, Fernanda S.C. dos Anjos, Antonio R. Cestari

Publikováno v: Matéria (Rio de Janeiro). 23

Chemically-modified in natura collage was prepared under acidic catalysis for using in sorption of Cd(II) from aqueous solutions. Simultaneous determination of the quantity and energetic parameters of Cd(II) sorption on PGA-scale at pH 8.0 were deter

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d8356995b3f731089056032a51f2480c
https://doi.org/10.1590/s1517-707620180004.0553

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A highly efficient adsorbent synthesized by reactive depositions of chitosan layers on fish scale collagen—Hydrodynamic swelling and dichlorophenol derivative sorption evaluated by continuous long-term solution microcalorimetry

Autor: Jackeline A. Mota, Eliana Midori Sussuchi, Eunice F.S. Vieira, Antonio R. Cestari, Esdras S. Silva

Publikováno v: Journal of Environmental Chemical Engineering. 1:480-485

In this work, a new adsorbent material (ADS) was synthesized by immobilization of chitosan layers on fish scale fibrillar collagen in sequential reactions. Characterization of ADS has performed by FTIR, surface-enhanced Raman spectroscopy, TG/DTG and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::837b47e8884716eed7a1a034d9e2acf5
https://doi.org/10.1016/j.jece.2013.06.013

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The use of freshwater fish scale of the species Leporinus elongatus as adsorbent for anionic dyes

Autor: Antonio R. Cestari, Renata A. Chagas, Cíntia dos S. Oliveira, Eunice F.S. Vieira, Wagner Carvalho

Publikováno v: Journal of Thermal Analysis and Calorimetry. 109:1407-1412

Fish scale of the species Leporinus elongatus was tested as an adsorbent for anionic Remazol dyes. Characterization has suggested that hydroxyl, phosphate, amides I, II, and III, and carbonate groups are the potential sites of adsorption. From soluti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::86fae5a549f0c92454a3679d62e0c74a
https://doi.org/10.1007/s10973-011-2011-x

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Poly(glutaraldehyde)-stabilized fish scale fibrillar collagen-some features of a new material for heavy metal sorption

Autor: Karine O. Moura, Antonio R. Cestari, Eunice F.S. Vieira

Publikováno v: Journal of Applied Polymer Science. 124:3208-3221

In this work, fibrillar collagen on scales of Corvina fish (Micropogonias furnieri) was crosslinked and used as a new adsorbent for sorption of Cr(VI) from aqueous solutions. Characterization has suggested that the crosslinked collagen of Corvina sca

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::efc9a3786e22ebe055be7cf9efb2dd14
https://doi.org/10.1002/app.35398

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The use of solution microcalorimetry to evaluate chemically modified fish scales as a viable adsorbent for heavy metals

Autor: Eunice F.S. Vieira, Antonio R. Cestari, Karine O. Moura

Publikováno v: Journal of Thermal Analysis and Calorimetry. 107:999-1005

Here, we report for the first time the direct and simultaneous determination of kinetic and energetic parameters of Cr(VI) sorption on chemically modified fish scales (GA-scale) using solution microcalorimetry. Characterization has suggested that ele

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9a0d67d81d10ec8ef4d60407f6e568bc
https://doi.org/10.1007/s10973-011-1612-8

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The removal of reactive dyes from aqueous solutions using chemically modified mesoporous silica in the presence of anionic surfactant—The temperature dependence and a thermodynamic multivariate analysis

Autor: Gláucia S. Vieira, Watson Loh, Eunice F.S. Vieira, Andréa M.G. Tavares, Claudio Airoldi, Antonio R. Cestari, Luiz Pereira da Costa

Publikováno v: Journal of Hazardous Materials. 161:307-316

The three-parameter Sips adsorption model was successfully employed to modeled equilibrium adsorption data of a yellow and a red dye onto a mesoporous aminopropyl-silica, in the presence of the surfactant sodium dodecylbenzenesulfonate (DBS) from 25

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38bc1c66bf31dc5de00aa9e19f42518b
https://doi.org/10.1016/j.jhazmat.2008.03.091

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Caracterização de escamas do peixe piau (Leporinus elongatus) e sua aplicação na remoção de Cu(II) de meio aquoso

Autor: Eunice F.S. Vieira, Ledjane Silva Barreto, Elias de Barros Santos, Antonio R. Cestari

Publikováno v: Química Nova. 32:134-138

Characterization of fish scales of Leporinus elongatus and their application in the removal of Cu(II) from aqueous solutions are described. It was observed that the scales are mainly formed by hydroxyapatite and type I collagen. Adsorption of Cu(II)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::edaa4a28c5fce445e08a10389da0bf6c
https://doi.org/10.1590/s0100-40422009000100026

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The removal of an anionic red dye from aqueous solutions using chitosan beads—The role of experimental factors on adsorption using a full factorial design

Autor: Jackeline A. Mota, Antonio R. Cestari, Eunice F.S. Vieira

Publikováno v: Journal of Hazardous Materials. 160:337-343

A factorial design was employed to evaluate the quantitative removal of an anionic red dye from aqueous solutions on epichlorohydrin-cross-linked chitosan. The experimental factors and their respective levels studied were the initial dye concentratio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a1b51f3a3d8dda228ee0688cd5a05c6f
https://doi.org/10.1016/j.jhazmat.2008.03.004

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