Avaliação da eficiência de híbridos magnéticos na remoção de ibuprofeno em água

Detalhes bibliográficos
Autor(a) principal: Farias, Douglas Lira de
Data de Publicação: 2019
Tipo de documento: Dissertação
Idioma: por
Título da fonte: Repositório Institucional da UFS
Texto Completo: http://ri.ufs.br/jspui/handle/riufs/12322
Resumo: Ibuprofen (IBU) is one of the most consumed drugs in the world and much of it is eliminated in aquatic bodies, being harmful to the environment even at low concentrations. Adsorption using magnetic hybrid materials is especially attractive because the adsorbent can be easily removed from the water. aqueous medium by the simple application of an external magnetic field. In this work we synthesized the hybrid magnetic adsorbent materials AGMG and MONG, and for this purpose they were used to compose the organic phases of the adsorbents, water hyacinth biomass (AGIN) and to the second water. with high content of natural organic matter (MON) and cobalt ferrite (CoFe2O4) to compose the inorganic phase in both materials. The formation of the materials was confirmed by X-ray diffraction, which identified the cobalt ferrite phase in the synthesized materials. Infrared confirmed the materials the presence of hydroxyl and carboxylate groups from AGIN and MON, as well as Fe-O stretches characteristic of cobalt ferrite. Tests of the influence of pH on the removal of IBU showed higher percentages of removal in the range. pH 2-3 for both adsorbents with removal percentages of 100 and 86% and equilibration times of 10 and 30 min for AGMG and MONG, respectively. However with only 5 minutes of kinetic assay there was a high adsorption response of 70% for MONG and 91% for AGMG. The kinetic data fit the pseudo-second order model. The isotherm data for the AGMG and MONG fit the Langmuir model, showing good linear correlation in the concentration range studied, with determination coefficient 2 between 0.9971-0.9981. The maximum adsorbent capacity values calculated (qmax) were 11.7mg g-1 for AGMG and 1.5 mg g-1 for MONG. The Adsorbents were reused in six adsorption cycles without the use of desorption process. , and the efficiency varied in both materials. For AGMG the removal remained high in all cycles, with 100% removal in the first cycle and 70% in the sixth cycle. For MONG, the removal decreased with each cycle, reaching a removal 78% in the first cycle and 30% that in the sixth cycle. The results show that the magnetic hybrids have deficiency in IBU removal and reusability.
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spelling Farias, Douglas Lira deRomão, Luciane Pimenta Cruz2019-11-04T11:17:31Z2019-11-04T11:17:31Z2019-08-27FARIAS, Douglas Lira de. Avaliação da eficiência de híbridos magnéticos na remoção de ibuprofeno em água. 2019. 76 f. Dissertação (Mestrado em Química) - Universidade Federal de Sergipe, São Cristóvão, SE, 2019.http://ri.ufs.br/jspui/handle/riufs/12322Ibuprofen (IBU) is one of the most consumed drugs in the world and much of it is eliminated in aquatic bodies, being harmful to the environment even at low concentrations. Adsorption using magnetic hybrid materials is especially attractive because the adsorbent can be easily removed from the water. aqueous medium by the simple application of an external magnetic field. In this work we synthesized the hybrid magnetic adsorbent materials AGMG and MONG, and for this purpose they were used to compose the organic phases of the adsorbents, water hyacinth biomass (AGIN) and to the second water. with high content of natural organic matter (MON) and cobalt ferrite (CoFe2O4) to compose the inorganic phase in both materials. The formation of the materials was confirmed by X-ray diffraction, which identified the cobalt ferrite phase in the synthesized materials. Infrared confirmed the materials the presence of hydroxyl and carboxylate groups from AGIN and MON, as well as Fe-O stretches characteristic of cobalt ferrite. Tests of the influence of pH on the removal of IBU showed higher percentages of removal in the range. pH 2-3 for both adsorbents with removal percentages of 100 and 86% and equilibration times of 10 and 30 min for AGMG and MONG, respectively. However with only 5 minutes of kinetic assay there was a high adsorption response of 70% for MONG and 91% for AGMG. The kinetic data fit the pseudo-second order model. The isotherm data for the AGMG and MONG fit the Langmuir model, showing good linear correlation in the concentration range studied, with determination coefficient 2 between 0.9971-0.9981. The maximum adsorbent capacity values calculated (qmax) were 11.7mg g-1 for AGMG and 1.5 mg g-1 for MONG. The Adsorbents were reused in six adsorption cycles without the use of desorption process. , and the efficiency varied in both materials. For AGMG the removal remained high in all cycles, with 100% removal in the first cycle and 70% in the sixth cycle. For MONG, the removal decreased with each cycle, reaching a removal 78% in the first cycle and 30% that in the sixth cycle. The results show that the magnetic hybrids have deficiency in IBU removal and reusability.O ibuprofeno (IBU) é um dos fármacos mais consumidos no mundo e grande parte dele é eliminado nos corpos aquáticos, sendo prejudicial ao ambiente mesmo em baixas concentrações. A adsorção usando materiais híbridos magnéticos é especialmente atraente, pois o adsorvente pode ser facilmente removido do meio aquoso pela simples aplicação de um campo magnético externo. Neste trabalho foi efetuada a síntese dos materiais adsorventes híbridos magnéticos AGMG e MONG,e para tal foram utilizadas para compor as fases orgânicas dos adsorventes, a biomassa de aguapé (AGIN) e para o segundo água com alto teor de matéria orgânica natural (MON) e a ferrita de cobalto (CoFe2O4) para compor a fase inorgânica, em ambos os materiais. A formação dos materiais foi confirmada por difratometria de raios X, em que se identificou da fase ferrita de cobalto nos materiais sintetizados. O infravermelho confirmou para os materiais a presença de grupos hidroxilas e carboxilatos, provenientes da AGIN e MON, além de estiramentos da Fe-O característica das ferritas de cobalto.Os ensaios da influência do pH na remoção do IBU mostraram maiores porcentagens de remoção na faixa de pH 2-3, para os dois adsorventes com percentuais de remoção de 100 e 86%e tempos de equilíbrio de 10 e 30 min para o AGMG e MONG,respectivamente. Entretanto com apenas 5 minutos de ensaio cinético houve uma alta resposta de adsorção de 70% para o MONG e de 91% para o AGMG. Os dados cinéticos ajustaram-se ao modelo de pseudo-segunda ordem. Os dados das isotermas para o AGMG e MONG ajustaram-se ao modelo de Langmuir, apresentando boa correlação linear na faixa de concentração estudada, com coeficiente de determinaçãor2 entre 0,9971-0,9981. Os valores de capacidades máximas dos adsorventes calculada (qmax) foram de 11,7 mg g-1 para o AGMG e 1,5 mg g-1 para o MONG.Os Adsorventes foram reutilizados em seis ciclos de adsorção, sem utilização de processo de dessorção, e a eficiência variou nos dois materiais. Para o AGMG a remoção permaneceu elevada em todos os ciclos, com 100% de remoção no primeiro ciclo e 70% no sexto ciclo. Para o MONG, a remoção diminuiu a cada ciclo, alcançando uma remoção 78% no primeiro ciclo e 30% que no sexto ciclo.Os resultados encontrados evidenciam que os híbridos magnéticos apresentaram eficiência na remoção do IBU e capacidade de reutilização.Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPqSão Cristóvão, SEporQuímicaAdsorçãoIbuprofenoAguapé (Planta)FerritaCobaltoHibrido magnéticoFerrita de cobaltoAdsorptionIbuprofenHybrid magneticWater hyacinthCobalt ferriteCIENCIAS EXATAS E DA TERRA::QUIMICAAvaliação da eficiência de híbridos magnéticos na remoção de ibuprofeno em águainfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisPós-Graduação em QuímicaUFSreponame:Repositório Institucional da UFSinstname:Universidade Federal de Sergipe (UFS)instacron:UFSinfo:eu-repo/semantics/openAccessTEXTDOUGLAS_LIRA_FARIAS.pdf.txtDOUGLAS_LIRA_FARIAS.pdf.txtExtracted texttext/plain118280https://ri.ufs.br/jspui/bitstream/riufs/12322/3/DOUGLAS_LIRA_FARIAS.pdf.txtafccc85cc9085f30d0d4d6be7c5dad44MD53THUMBNAILDOUGLAS_LIRA_FARIAS.pdf.jpgDOUGLAS_LIRA_FARIAS.pdf.jpgGenerated Thumbnailimage/jpeg1512https://ri.ufs.br/jspui/bitstream/riufs/12322/4/DOUGLAS_LIRA_FARIAS.pdf.jpg8378fd30f8fdbbb21c486ebf9207dd6dMD54LICENSElicense.txtlicense.txttext/plain; charset=utf-81475https://ri.ufs.br/jspui/bitstream/riufs/12322/1/license.txt098cbbf65c2c15e1fb2e49c5d306a44cMD51ORIGINALDOUGLAS_LIRA_FARIAS.pdfDOUGLAS_LIRA_FARIAS.pdfapplication/pdf1391725https://ri.ufs.br/jspui/bitstream/riufs/12322/2/DOUGLAS_LIRA_FARIAS.pdfa296d5551ea39c69a3016d2c0ba42c77MD52riufs/123222019-11-04 08:17:31.536oai:ufs.br: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Repositório InstitucionalPUBhttps://ri.ufs.br/oai/requestrepositorio@academico.ufs.bropendoar:2019-11-04T11:17:31Repositório Institucional da UFS - Universidade Federal de Sergipe (UFS)false
dc.title.pt_BR.fl_str_mv Avaliação da eficiência de híbridos magnéticos na remoção de ibuprofeno em água
title Avaliação da eficiência de híbridos magnéticos na remoção de ibuprofeno em água
spellingShingle Avaliação da eficiência de híbridos magnéticos na remoção de ibuprofeno em água
Farias, Douglas Lira de
Química
Adsorção
Ibuprofeno
Aguapé (Planta)
Ferrita
Cobalto
Hibrido magnético
Ferrita de cobalto
Adsorption
Ibuprofen
Hybrid magnetic
Water hyacinth
Cobalt ferrite
CIENCIAS EXATAS E DA TERRA::QUIMICA
title_short Avaliação da eficiência de híbridos magnéticos na remoção de ibuprofeno em água
title_full Avaliação da eficiência de híbridos magnéticos na remoção de ibuprofeno em água
title_fullStr Avaliação da eficiência de híbridos magnéticos na remoção de ibuprofeno em água
title_full_unstemmed Avaliação da eficiência de híbridos magnéticos na remoção de ibuprofeno em água
title_sort Avaliação da eficiência de híbridos magnéticos na remoção de ibuprofeno em água
author Farias, Douglas Lira de
author_facet Farias, Douglas Lira de
author_role author
dc.contributor.author.fl_str_mv Farias, Douglas Lira de
dc.contributor.advisor1.fl_str_mv Romão, Luciane Pimenta Cruz
contributor_str_mv Romão, Luciane Pimenta Cruz
dc.subject.por.fl_str_mv Química
Adsorção
Ibuprofeno
Aguapé (Planta)
Ferrita
Cobalto
Hibrido magnético
Ferrita de cobalto
topic Química
Adsorção
Ibuprofeno
Aguapé (Planta)
Ferrita
Cobalto
Hibrido magnético
Ferrita de cobalto
Adsorption
Ibuprofen
Hybrid magnetic
Water hyacinth
Cobalt ferrite
CIENCIAS EXATAS E DA TERRA::QUIMICA
dc.subject.eng.fl_str_mv Adsorption
Ibuprofen
Hybrid magnetic
Water hyacinth
Cobalt ferrite
dc.subject.cnpq.fl_str_mv CIENCIAS EXATAS E DA TERRA::QUIMICA
description Ibuprofen (IBU) is one of the most consumed drugs in the world and much of it is eliminated in aquatic bodies, being harmful to the environment even at low concentrations. Adsorption using magnetic hybrid materials is especially attractive because the adsorbent can be easily removed from the water. aqueous medium by the simple application of an external magnetic field. In this work we synthesized the hybrid magnetic adsorbent materials AGMG and MONG, and for this purpose they were used to compose the organic phases of the adsorbents, water hyacinth biomass (AGIN) and to the second water. with high content of natural organic matter (MON) and cobalt ferrite (CoFe2O4) to compose the inorganic phase in both materials. The formation of the materials was confirmed by X-ray diffraction, which identified the cobalt ferrite phase in the synthesized materials. Infrared confirmed the materials the presence of hydroxyl and carboxylate groups from AGIN and MON, as well as Fe-O stretches characteristic of cobalt ferrite. Tests of the influence of pH on the removal of IBU showed higher percentages of removal in the range. pH 2-3 for both adsorbents with removal percentages of 100 and 86% and equilibration times of 10 and 30 min for AGMG and MONG, respectively. However with only 5 minutes of kinetic assay there was a high adsorption response of 70% for MONG and 91% for AGMG. The kinetic data fit the pseudo-second order model. The isotherm data for the AGMG and MONG fit the Langmuir model, showing good linear correlation in the concentration range studied, with determination coefficient 2 between 0.9971-0.9981. The maximum adsorbent capacity values calculated (qmax) were 11.7mg g-1 for AGMG and 1.5 mg g-1 for MONG. The Adsorbents were reused in six adsorption cycles without the use of desorption process. , and the efficiency varied in both materials. For AGMG the removal remained high in all cycles, with 100% removal in the first cycle and 70% in the sixth cycle. For MONG, the removal decreased with each cycle, reaching a removal 78% in the first cycle and 30% that in the sixth cycle. The results show that the magnetic hybrids have deficiency in IBU removal and reusability.
publishDate 2019
dc.date.accessioned.fl_str_mv 2019-11-04T11:17:31Z
dc.date.available.fl_str_mv 2019-11-04T11:17:31Z
dc.date.issued.fl_str_mv 2019-08-27
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dc.identifier.citation.fl_str_mv FARIAS, Douglas Lira de. Avaliação da eficiência de híbridos magnéticos na remoção de ibuprofeno em água. 2019. 76 f. Dissertação (Mestrado em Química) - Universidade Federal de Sergipe, São Cristóvão, SE, 2019.
dc.identifier.uri.fl_str_mv http://ri.ufs.br/jspui/handle/riufs/12322
identifier_str_mv FARIAS, Douglas Lira de. Avaliação da eficiência de híbridos magnéticos na remoção de ibuprofeno em água. 2019. 76 f. Dissertação (Mestrado em Química) - Universidade Federal de Sergipe, São Cristóvão, SE, 2019.
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