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Dotto, Guilherme Luiz
(2010)
O despejo de efluentes industriais contendo corantes é um grave problema ambiental,
tanto para a vida aquática quanto para a saúde pública. Com o intuito de remover
estes corantes dos efluentes, a adsorção é uma técnica ...
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Pinto, Luiz Antonio de Almeida; Picci, Jeferson Steffanello; Dotto, Guilherme Luiz
(Abeq, 2011)
Chitosan is a natural polymer that has been employed in dye adsorption. In this work, adsorption and thermodynamic data for the interaction of FD&C Red n° 40 food dye with chitosan in aqueous solutions were investigated. ...
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Dotto, Guilherme Luiz; Pinto, Luiz Antonio de Almeida
(Elsevier, 2011)
Adsorption of food dyes acid blue 9 and food yellow 3 onto chitosan was optimized. Chitosan was obtained from shrimp wastes and characterized.Afull factorial design was used to analyze the effects of pH, stirring rate and ...
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Dotto, Guilherme Luiz; Pinto, Luiz Antonio de Almeida
(2012)
In this research, the mass transfer kinetics for the biosorption of synthetic dyes (acid blue 9 and FD&C red no. 40) by Spirulina platensis nanoparticles was analyzed under different experimental conditions. The external ...
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Dotto, Guilherme Luiz; Moura, Jaqueline Motta de; Cadaval Junior, Tito Roberto Sant'Anna; Pinto, Luiz Antonio de Almeida
(Elsevier, 2013)
Chitosan films were applied to remove acid red 18 and FD&C blue no. 2 dyes from aqueous solutions. The films were prepared by casting technique and characterized. Batch adsorption equilibrium experiments were carried out ...
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Moura, Jaqueline Motta de
(2014)
Nesta pesquisa, diferentes amostras de quitosana foram produzidas por diferentes
condições de hidrólise alcalina da quitina. A partir das amostras de quitosana foram
produzidos filmes,sendo estes aplicados na adsorção ...
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Dotto, Guilherme Luiz
(2012)
Neste trabalho foi verificado o potencial de aplicação de nanopartículas de S. platensis
para a remoção de três corantes alimentícios de soluções aquosas pelo processo de
biossorção. Primeiramente, as nanopartículas foram ...
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Esquerdo, Vanessa Mendonça; Cadaval Junior, Tito Roberto Sant'Anna; Dotto, Guilherme Luiz; Pinto, Luiz Antonio de Almeida
(Elsevier, 2014)
Hypothesis: The dye adsorption with chitosan is considered an eco-friendly alternative technology in relation to the existing water treatment technologies. However, the application of chitosan for dyes removal is limited, ...
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Cardoso, Natali Farias; Lima, Eder Claudio; Royer, Betina; Bach, Marta; Dotto, Guilherme Luiz; Pinto, Luiz Antonio de Almeida; Calvete, Tatiana
(2012)
Spirulina platensis microalgae (SP) and commercial activated carbon (AC) were compared as adsorbents to remove Reactive Red 120 (RR-120) textile dye from aqueous effluents. The batch adsorption system was evaluated in ...
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Dotto, Guilherme Luiz; Buriol, Celene; Pinto, Luiz Antonio de Almeida
(Elsevier, 2014)
The adsorption kinetics of erythrosine B and indigo carmine on chitosan films was studied by a diffusional mass transfer model. The experimental curves were obtained in batch system under different conditions of stirring ...
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Dotto, Guilherme Luiz; Vieira, Mery Luiza Garcia; Esquerdo, Vanessa Mendonça; Pinto, Luiz Antonio de Almeida
(Abeq, 2013)
The equilibrium and thermodynamics of azo dye (tartrazine and allura red) biosorption onto Spirulina platensis biomass were investigated. The equilibrium curves were obtained at 298, 308, 318 and 328 K, and four isotherm ...
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Moura, Catarina Motta de; Moura, Jaqueline Motta de; Santos, Jaqueline Pozzada dos; Kosinski, Roberta da Costa; Dotto, Guilherme Luiz; Pinto, Luiz Antonio de Almeida
(Wiley-VHC, 2012)
Chitosan biofilms were prepared with and without plasticizer (glycerol and
sorbitol). The physical and mechanical properties of chitosan biofilms with and without plasticizer were evaluated. Chitosan was obtained from ...
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Dotto, Guilherme Luiz; Costa, Jorge Alberto Vieira; Pinto, Luiz Antonio de Almeida
(2013)
A kinetic study on the biosorption of phenol by nanoparticles from Spirulina sp. LEB 18 was carried out. The Spirulina sp. nanoparticles were prepared and characterized. Kinetic curves of phenol biosorption were obtained ...
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Piccin, Jeferson Steffanello; Dotto, Guilherme Luiz; Vieira, Mery Luiza Garcia; Pinto, Luiz Antonio de Almeida
(ACS, 2011)
The kinetics and mechanism of the food dye disodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfophenyl)azo)-2-naphthalenesulfonate (FD&C Red 40) adsorption onto chitosan were studied. The effects of pH (5.7 to 7.4), chitosan ...
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Dotto, Guilherme Luiz; Cadaval Junior, Tito Roberto Sant'Anna; Pinto, Luiz Antonio de Almeida
(Elsevier, 2012)
Spirulina platensis nanoparticles were prepared by mechanical agitation and were applied to removal Cr (VI) from aqueous solutions. Nanoparticles preparation was function of stirring rate and contact time. In the optimal ...
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Vieira, Mery Luiza Garcia
(2014)
O uso de corantes sintéticos na indústria de alimentos tem provocado transtornos à saúde humana e ao meio ambiente. A quitosana pode ser imobilizada em matrizes sólidas e aplicada na remoção de corantes em coluna de leito ...
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Gonçalves, Janaína Oliveira
(2015)
Os estudos de adsorção de corantes alimentícios de soluções aquosas geralmente estão voltados para a remoção de um corante específico, porém, as misturas binárias são mais realistas para simular efluentes industriais. A ...
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Dotto, Guilherme Luiz; Vieira, Mery Luiza Garcia; Gonçalves, Janaína Oliveira; Pinto, Luiz Antonio de Almeida
(Sociedade Brasileira de Química, 2011)
This work compared activated carbon, activated earth, diatomaceous earth, chitin and chitosan to removal acid blue 9, food yellow 3 and FD&C yellow n° 5 dyes from aqueous solutions with different pH values (2-10). In the ...
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Dotto, Guilherme Luiz; Cadaval Junior, Tito Roberto Sant'Anna; Pinto, Luiz Antonio de Almeida
(Elsevier, 2012)
In this research, micro and nanoparticles of Spirulina platensis dead biomass were obtained, characterized and employed to removal FD&C red no. 40 and acid blue 9 synthetic dyes from aqueous solutions. The effects of ...
