Produção Nacional
Revisado por pares
Caroline Maria Bezerra de Araújo, Marcos Gomes Ghislandi, Albertina G. Rios, Gabriel Rodrigues Bezerra da Costa, Bruna Figueiredo do Nascimento, Alexandre Ferreira, Maurı́cio Alves da Motta Sobrinho, Alı́rio E. Rodrigues,
Hydrogel biocomposite using graphene oxide and agar biopolymer (agar-GO) was synthesized to treat textile wastewater through fixed-bed adsorption. After characterization, batch experiments were conducted to evaluate the pH effect in the adsorption process, adsorption isotherms, and kinetics for four cationic dyes – Nile Blue A (NB), Methylene Blue (MB), Malachite Green (MG) and Basic Fuchsin (BF). Adsorption equilibrium isotherms were fitted to Freundlich, Langmuir and Sips models, and kinetic data were ...
Tópico(s): Nanomaterials for catalytic reactions
2022 - Elsevier BV | Colloids and Surfaces A Physicochemical and Engineering Aspects
Produção Nacional
Revisado por pares
Caroline Maria Bezerra de Araújo, Romero Barbosa de Assis Filho, Ana Maria Salgueiro Baptisttella, Gabriel Filipe Oliveira do Nascimento, Gabriel Rodrigues Bezerra da Costa, Marilda Nascimento Carvalho, Marcos Gomes Ghislandi, Maurı́cio Alves da Motta Sobrinho,
Water pollution is a serious environmental problem and coloured pigments are considered one of the greatest concerning contaminants. Graphene, a new two-dimensional material presenting high theoretical specific surface area, has been widely studied for applications in wastewater treatment. It was the aim of this work to study the feasibility of producing Graphene Oxide (GO) under different conditions, using Factorial Design techniques, so that it could be successfully applied in the adsorptive removal ...
Tópico(s): Nanomaterials for catalytic reactions
2018 - IOP Publishing | Materials Research Express
Produção Nacional
Revisado por pares
Ana Maria Salgueiro Baptisttella, Caroline Maria Bezerra de Araújo, Maryne Patrícia da Silva, Gabriel Filipe Oliveira do Nascimento, Gabriel Rodrigues Bezerra da Costa, Bruna Figueiredo do Nascimento, Marcos Gomes Ghislandi, Maurı́cio Alves da Motta Sobrinho,
Characterization and test a magnetic graphene oxide (GO) nanocomposite (Fe3O4-GO) in the photo-degradation of Methylene Blue (MB), Reactive Black 5 (RB), and Acid Blue 80 (AB) dyes were investigated in this work. Measurements indicated that GO was decorated by Fe3O4. Kinetic tests showed that the process was more efficient in degrade MB – %Degradation MB>RB>AB; also in the regeneration and reuse of the photocatalyst. Regarding the phytotoxicity, all seeds germinated, although a decrease in the root length ...
Tópico(s): Advanced oxidation water treatment
2020 - Taylor & Francis | Separation Science and Technology
Produção Nacional
Revisado por pares
Caroline Maria Bezerra de Araújo, Gabriel Filipe Oliveira do Nascimento, Gabriel Rodrigues Bezerra da Costa, Karolyne Santos da Silva, Ana Maria Salgueiro Baptisttella, Marcos Gomes Ghislandi, Maurı́cio Alves da Motta Sobrinho,
This work focused on producing different graphene oxide (GO) samples for further application in the adsorptive removal of dyes from real textile wastewater. Among all conditions tested, the sample produced using KMnO4 and no sonication bath exhibited the best performance. Before the experiments using wastewater, kinetics and equilibrium of adsorption studies were performed with Methylene Blue (MB) dye. Experimental data showed the isotherm fitted the Freundlich model, and kinetic results fitted the ...
Tópico(s): Gold and Silver Nanoparticles Synthesis and Applications
2018 - Taylor & Francis | Chemical Engineering Communications
Produção Nacional
Revisado por pares
Bruna Figueiredo do Nascimento, Caroline Maria Bezerra de Araújo, Alisson Castro do Nascimento, Gabriel Rodrigues Bezerra da Costa, Brener Felipe Melo Lima Gomes, Maryne Patrícia da Silva, Ronald Keverson da Silva Santos, Maurı́cio Alves da Motta Sobrinho,
This work aimed to evaluate the adsorption of Reactive Black 5 (RB5) and Basic Blue 12 (BB12) dyes using biochar from gasification of wood waste. Langmuir isotherm fit better to experimental data, exhibiting maximum adsorption capacities of 35.67 mg·g−1 (RB5), and 80.41 mg·g−1 (BB12). Kinetics indicated the equilibrium was reached after 90 min for RB5 and 180 min for BB12, and Elovich model best represented the experimental points. Kinetics were also modeled following a phenomenological approach, and ...
Tópico(s): Recycling and Waste Management Techniques
2021 - Elsevier BV | Bioresource Technology Reports
Produção Nacional
Revisado por pares
Caroline Maria Bezerra de Araújo, Gabriel Filipe Oliveira do Nascimento, Gabriel Rodrigues Bezerra da Costa, Ana Maria Salgueiro Baptisttella, Tiago José Marques Fraga, Romero Barbosa de Assis Filho, Marcos Gomes Ghislandi, Maurı́cio Alves da Motta Sobrinho,
Abstract Textile effluent is one of the most hazardous types of wastewater for both the environment and human health when discharged without proper treatment. This work stands out as one of the first to evaluate the parameters for the application of graphene oxide (GO) to treat real textile wastewater. A comparative analysis was conducted to investigate the removal efficiencies of turbidity and apparent colour from raw textile wastewater using GO. The effects of different parameters, such as GO dosage, ...
Tópico(s): Nanomaterials for catalytic reactions
2020 - Wiley | The Canadian Journal of Chemical Engineering
Produção Nacional
Revisado por pares
Eveline Haiana Costa de Oliveira, Érica T. R. Mendonça, Osmar Souto Baraúna, Joelma Morais Ferreira, Maurı́cio Alves da Motta Sobrinho,
Tópico(s): Recycling and utilization of industrial and municipal waste in materials production
2015 - Springer Science+Business Media | Adsorption
Produção Nacional
Revisado por pares
Eveline Haiana Costa de Oliveira, Daysianne Mikaella dos Santos Marques Fraga, Maryne Patrícia da Silva, Tiago José Marques Fraga, Marilda Nascimento Carvalho, Eleonora Maria Pereira de Luna Freire, Marcos Gomes Ghislandi, Maurı́cio Alves da Motta Sobrinho,
The adsorptive capacity of xGnP® graphite nanoplatelets (GNP) was evaluated for the removal of Drimaren Dark Blue CL-R (DDB), Direct Red 80 (DR80), Chrysophenine (CH) and Eosin Yellowish (EY). Kinetic pseudo-second-order (PSO) model best fitted the experimental data for all evaluated dyes. Moreover, sorption capacity at equilibrium state for DDB, DR80, CH and EY were 22.14, 38.36, 28.68 and 156.77 mg g−1, respectively. Equilibrium data for the DDB dye were best fitted to the BET type IV model, while DR80, ...
Tópico(s): Graphene research and applications
2019 - Elsevier BV | Journal of environmental chemical engineering
Produção Nacional
Revisado por pares
Welenilton José do Nascimento Júnior, Giovane Henrique de Aguiar, Renan Costa Massarelli, Richard Landers, Melissa Gurgel Adeodato Vieira, Maurı́cio Alves da Motta Sobrinho,
Tópico(s): Adsorption and biosorption for pollutant removal
2023 - Springer Science+Business Media | Environmental Science and Pollution Research
Produção Nacional
Revisado por pares
B. F. de Oliveira, J. K. S. Negreiros, Maurı́cio Alves da Motta Sobrinho, Jerffeson Araújo Cavalcante, Nagel Alves Costa, Telmo Pereira,
Tópico(s): Phytochemistry and biological activity of medicinal plants
2024 - Taylor & Francis | Particulate Science And Technology
Produção Nacional
Revisado por pares
Jéssica Kelly da Silva Negreiros, Bárbara Freire de Oliveira, Maurı́cio Alves da Motta Sobrinho, Josilene de Assis Cavalcante, Nagel Alves Costa, Felipe Augusto Santos,
Abstract This study aimed to analyze the influence of operational parameters (foaming agent concentration, agitation time, and drying temperature) on the characteristics of the final product and the foam drying process of Momordica charantia L . leaves, in addition to performing mathematical modeling of the experimental data. The foam characteristic was most influenced by the foaming agent concentration, where the increase in this variable increased its stability, reaching the highest index of 0.9838 ± ...
Tópico(s): Food Drying and Modeling
2024 - Wiley | Journal of Food Science
Bárbara Freire de Oliveira, Jéssika Kelly da Silva Negreiros, Maurı́cio Alves da Motta Sobrinho, Josilene de Assis Cavalcante, Nagel Alves Costa, Tamires dos Santos Pereira, Ravena Casemiro Oliveira,
A secagem é uma tecnologia amplamente empregada para a conservação de alimentos, dentre os métodos, o leito de jorro se destaca nos processos por apresentar alta eficiência na secagem de pastas e suspensões. Neste trabalho foi estudado o comportamento fluidodinâmico do leito de jorro para obter as condições de operação que permitissem a produção do pó da polpa do noni (Morinda citrifolia L.). Foram verificadas a queda de pressão, a velocidade do ar e a altura da fonte e do anel apenas com o inerte ...
Tópico(s): Sensory Analysis and Statistical Methods
2023 - Servicios Academicos Intercontinentales | OBSERVATÓRIO DE LA ECONOMÍA LATINOAMERICANA
Produção Nacional
Revisado por pares
Olavo Costa da Leite, Márcio Camargo de Melo, Lawrence Oliveira, Maurı́cio Alves da Motta Sobrinho, Bruno Manoel Rezende de Melo,
A maioria dos solos brasileiros, de maneira especial aqueles em que estão ocorrendo a expansão da agricultura, como os solos em regiões de Cerrados, apresentam características de acidez, toxidez de Al e baixos níveis de Ca e Mg.Em especial, os solos sob Cerrado Tocantinense, têm indicado problemas em relação com a baixa fertilidade, exigindo aplicações de calcário e fertilizantes para utilização agrícola.Os mesmos apresentam índices de pH menores que 5,5 com alta concentração de Al e Fe, e com deficiência ...
Tópico(s): Geography and Environmental Studies
2018 - Centro Científico Knowing | Enciclopédia Biosfera
Caroline Magalhães Tenório Rocha Sobrinho, Janaína de Alencar Barbosa, João Rubens Ribeiro Figueira, Alessa Moísa Barros Costa, Aline Coelho Moura, Brunna Karolyne Aguiar Ferreira, Camyla de Oliveira Lisboa, Gisele Vasconcelos Calheiros de Oliveira Costa, Isabela Caracas Machado Borges, Pedro Henrique Oliveira Malta, Bernardo Alencar Suruagy Motta, Marcela Caracas Machado Borges,
Introduction:Munchausen syndrome by proxy (PPMS) is conceptualized as a psychiatric disorder and is characterized when a person close to the child, mainly the mother, produces false hospital information inducing medicine to investigate the case.Falsification or production of clinical histories and laboratory evidence may occur and cause physical injuries and, in most cases, induce the child to be hospitalized with unnecessary therapeutic and diagnostic procedures, that is, it is a form of childhood ...
Tópico(s): Homicide, Infanticide, and Child Abuse
2024 - | International Journal of Health Science