Search Results - "CESTARI, Antonio R"

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

“…A factorial design was employed to evaluate the quantitative removal of an anionic red dye from aqueous solutions on epichlorohydrin-cross-linked chitosan. The…”
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Thermodynamics of the Cu(II) adsorption on thin vanillin-modified chitosan membranes by Cestari, Antonio R., Vieira, Eunice F.S., Mattos, Charlene R.S.

“…In this work, low-density vanillin-modified thin chitosan membranes were synthesized and characterized. The membranes were utilized as adsorbent for the…”
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The removal of Cu(II) and Co(II) from aqueous solutions using cross-linked chitosan—Evaluation by the factorial design methodology by Cestari, Antonio R., Vieira, Eunice F.S., de Oliveira, Iataanderson A., Bruns, Roy E.

“…A 2 3 factorial design was employed to evaluate the quantitative removal of Cu(II) and Co(II) on glutaraldehyde-cross-linked chitosan from kinetic isotherms,…”
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Use of a La(III)-modified bentonite for effective phosphate removal from aqueous media by KUROKI, Vivian, BOSCO, Giulianna E, FADINI, Pedro S, MOZETO, Antonio A, CESTARI, Antonio R, CARVALHO, Wagner A

“…A bentonite from the Northeast Brazilian region was modified with lanthanum (NT-25La) using an ion exchange process. Lanthanum incorporation in the natural…”
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Comments on the paper: a critical review of the applicability of Avrami fractional kinetic equation in adsorption-based water treatment studies by Lima, Eder C., Cestari, Antonio R., Adebayo, Matthew A.

“…This letter presents comments on the paper “Critical review on the applicability of Avrami fractional kinetic equation in adsorption-based water treatment…”
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Polysaccharide-Based Hydrogels: Preparation, Characterization, and Drug Interaction Behaviour by Vieira, Eunice F. S, Cestari, Antonio R, Airoldi, Claudio, Loh, Watson

“…Oxidized alginate (ADA) and oxidized alginate blended with chitosan (ADA-Chit) were prepared in the presence of borax and CaCl2, and their interactions with an…”
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The removal of the indigo carmine dye from aqueous solutions using cross-linked chitosan—Evaluation of adsorption thermodynamics using a full factorial design by Cestari, Antonio R., Vieira, Eunice F.S., Tavares, Andréa M.G., Bruns, Roy E.

“…A 2 3 factorial design was employed to evaluate the quantitative removal of the indigo carmine (IC) dye from aqueous solutions on glutaraldehyde cross-linked…”
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An alternative Avrami equation to evaluate kinetic parameters of the interaction of Hg(II) with thin chitosan membranes by Lopes, Elaine C.N., dos Anjos, Fernanda S.C., Vieira, Eunice F.S., Cestari, Antonio R.

“…In this work, thin chitosan membranes were utilized as an adsorbent for the removal of Hg(II) from aqueous solutions. A rise of temperature accelerates the…”
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A novel and efficient epoxy/chitosan cement slurry for use in severe acidic environments of oil wells—Structural characterization and kinetic modeling by Cestari, Antonio R., Vieira, Eunice F.S., Alves, Fernanda J., Silva, Ellen C.S., Andrade, Marcos A.S.

“…► A novel and efficient epoxy/chitosan cement slurry was synthesized. ► The crystalline patterns of the slurry were preserved after interaction with HCl. ► The…”
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Aggregation and adsorption of reactive dyes in the presence of an anionic surfactant on mesoporous aminopropyl silica by Cestari, Antonio R., Vieira, Eunice F.S., Vieira, Gláucia S., Almeida, Luis E.

“…A surface tension technique was used to determine the critical aggregation concentration (cac) of a yellow and a red dye in relation to the presence of the…”
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Thermochemical investigation on the adsorption of some divalent cations on modified silicas obtained from sol–gel process by Cestari, Antonio R, Vieira, Eunice F.S, Simoni, José de A, Airoldi, Claudio

“…Silicas with one or two immobilised ethylenediamine molecules, presenting electron donor Lewis bases, have been prepared through sol–gel method…”
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Synthesis and characterization of a novel fish scale-immobilized chitosan adsorbent—Preliminary features of dichlorophenol sorption by solution calorimetry by Mota, Jackeline A., Chagas, Renata A., Vieira, Eunice F.S., Cestari, Antonio R.

“…► A novel fish scale-immobilized chitosan adsorbent was synthesized and characterized. ► It was evaluated the sorption of dichlorophenol on the new adsorbent…”
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The removal of anionic dyes from aqueous solutions in the presence of anionic surfactant using aminopropylsilica—A kinetic study by Cestari, Antonio R., Vieira, Eunice F.S., Vieira, Gláucia S., Almeida, Luis E.

“…In this study, the aminopropyl-silica (Sil-NH 2) was used to adsorb a yellow- and a red-dye from aqueous solutions at pH 4.0. New data concerning the influence…”
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Adsorption of anionic dyes on chitosan beads. 1. The influence of the chemical structures of dyes and temperature on the adsorption kinetics by Cestari, Antonio R., Vieira, Eunice F.S., dos Santos, Aline G.P., Mota, Jackeline A., de Almeida, Vanessa P.

“…In this work, chitosan beads were synthesized in acidic medium and cross-linked in 1% glutaraldehyde solution. The characterization of the materials using…”
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Multistep adsorption of anionic dyes on silica/chitosan hybrid. 1. Comparative kinetic data from liquid- and solid-phase models by CESTARI, Antonio R, VIEIRA, Eunice F. S, PINTO, Alane A, LOPES, Elaine C. N

“…In this work, a hybrid silica/chitosan was synthesized and characterized by nitrogen elemental analysis and thermal analysis (TG, DTG, DTA, and DSC) and BET…”
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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 by Cestari, Antonio R., Vieira, Eunice F.S., Vieira, Gláucia S., da Costa, Luiz P., Tavares, Andréa M.G., Loh, Watson, Airoldi, Claudio

“…The three-parameter Sips adsorption model was successfully employed to modeled equilibrium adsorption data of a yellow and a red dye onto a mesoporous…”
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Poly(glutaraldehyde)-stabilized fish scale fibrillar collagen-some features of a new material for heavy metal sorption by Moura, Karine O., Vieira, Eunice F. S., Cestari, Antonio R.

“…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…”
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Synthesis, characterization and hydration analysis of a novel epoxy/superplasticizer oilwell cement slurry – Some mechanistic features by solution microcalorimetry by Cestari, Antonio R., Vieira, Eunice F.S., Silva, Ellen C.S., Alves, Fernanda J., Andrade, Marcos A.S.

“…[Display omitted] ► A new epoxy/polyacrylate-modified oilwell cement slurry was synthesized. ► The morphological features of the new slurry were preserved…”
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Tetracycline release from chitosan/fish-scale-based membranes by Cortes, Gracy Karla da R., Vieira, Eunice F. S., Cestari, Antonio R., Chagas, Renata A.

“…ABSTRACT In this study, we aimed to develop new biocompatible membranes on the basis of chitosan (CHIT) and fish scale powder (ESC) from the species Leporinus…”
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The use of solution microcalorimetry to evaluate chemically modified fish scales as a viable adsorbent for heavy metals by Moura, Karine O., Vieira, Eunice F. S., Cestari, Antonio R.

“…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…”
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