Material híbrido de paper clay / óxido de grafeno para adsorção de azul de metileno

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dc.contributor.advisorDomingues, Sergio Humberto
dc.contributor.advisor1Latteshttp://lattes.cnpq.br/3585264786800637por
dc.contributor.authorFalzirolli, Graziella Pessôa
dc.creator.Latteshttp://lattes.cnpq.br/0192078048980608por
dc.date.accessioned2018-04-28T16:17:37Z
dc.date.accessioned2020-05-28T18:07:38Z
dc.date.available2020-05-28T18:07:38Z
dc.date.issued2018-02-02
dc.description.abstractMaterials based on graphene oxide and different types of clays are two classes of materials with unique properties and with several applications, highlighting the adsorption capacity of some dyes, metals and organic compounds. The combination of these structures can lead to significant improvements in their properties through the synergism of the two species. Methylene blue, a cationic dye widely used in many types of industries, has considerable toxicity and causes biological imbalances when discarded in the wrong way. Because it is a low-cost, high-application material, it is of great concern to health organizations as it can cause irreversible damage when discarded or stored in the wrong way in the environment. Thus, the need for treatments to remove this material from nature becomes more and more and among the various available techniques, the adsorption is one of the most outstanding, due to its ability to remove the material from the contaminated medium without compromising the medium, however the materials currently used have a number of disadvantages, such as high cost and considerable efficiency. The purpose of this work was to obtain and characterize a hybrid material consisting of the deposition of graphene oxide (GO) under porcelain based on a mixture of clay and paper, and its application as adsorbent material of the dye methylene blue. The kinetic studies showed that hybrid materials with different proportions of GO (400μL and 1200μL) were tested as adsorbent matrices, showing in their results that the higher proportion of GO in the compound improves the adsorption power, reaching 98% of the dye, due to the high surface area of the carbonaceous material and its negative charge surface are attractive for the retention of the cationic dye, since the interaction between the materials is given primarily by electrostatic attraction. Another factor that influenced the retention power of the dye in the matrix was the basic medium in which the dye was, since when it immersed the matrix, the molecules of methylene blue began to interact with it. The use of paper clay as an adsorber matrix also allowed the reuse and recycling of the matrices, since after the first use there were still active sites in the matrices and after their saturation, sintering them again it was possible to eliminate the materials of its surface, allowing so its re-use with GO deposited again.eng
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superiorpor
dc.formatapplication/pdf*
dc.identifier.citationFALZIROLLI, Graziella Pessôa. Material híbrido de paper clay / óxido de grafeno para adsorção de azul de metileno. 2018. 77 f. Dissertação( Engenharia de Materiais) - Universidade Presbiteriana Mackenzie, São Paulo.por
dc.identifier.urihttp://dspace.mackenzie.br/handle/10899/24242
dc.keywordsgraphene oxideeng
dc.keywordspaper-clayeng
dc.keywordsmethylene blueeng
dc.keywordsadsorptioneng
dc.languageporpor
dc.publisherUniversidade Presbiteriana Mackenziepor
dc.rightsAcesso Abertopor
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectóxido de grafenopor
dc.subjectpaper-claypor
dc.subjectazul de metilenopor
dc.subjectadsorçãopor
dc.subject.cnpqCNPQ::ENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICApor
dc.subject.cnpqCNPQ::CIENCIAS SOCIAIS APLICADAS::DESENHO INDUSTRIALpor
dc.thumbnail.urlhttp://tede.mackenzie.br/jspui/retrieve/16430/Graziella%20Pess%c3%b4a%20Falzirolli.pdf.jpg*
dc.titleMaterial híbrido de paper clay / óxido de grafeno para adsorção de azul de metilenopor
dc.typeDissertaçãopor
local.contributor.board1Fechine, Guilhermino José Macêdo
local.contributor.board1Latteshttp://lattes.cnpq.br/8109533360196619por
local.contributor.board2Camargo, Pedro Henrique Cury
local.contributor.board2Latteshttp://lattes.cnpq.br/5388972564927232por
local.publisher.countryBrasilpor
local.publisher.departmentEscola de Engenharia Mackenzie (EE)por
local.publisher.initialsUPMpor
local.publisher.programEngenharia de Materiaispor
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