Studies of equilibrium and kinetics of adsorption of cesium ions by graphene oxide
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo de conferência |
Título da fonte: | Repositório Institucional do IPEN |
Texto Completo: | http://repositorio.ipen.br/handle/123456789/28267 |
Resumo: | Cesium is one of the fission products of major radiological concern, it is often found in nuclear radioactive waste generated at nuclear power plants. Graphene Oxide (GO) has attracted great attention due to its functionalized surface, which includes hydroxyl, epoxy, carbonyl and carboxyl groups, with great capacity of complexation with metal ions and can be used as adsorbent to remove cations from aqueous solutions. In this work, a treatment of radioactive waste containing 137Cs was studied. For the batch experiments of Cs+ removal, 133Cs concentrations remained after the adsorption were determined by Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) and the results obtained were analyzed according to the Langmuir and Freundlich isotherms models. The kinetics of adsorption and Gibbs free energy were also determined. The Langmuir model was the best fit and defined a favorable adsorption. The cesium adsorption process is the pseudo-second model and the Gibbs free energy calculation indicated that the adsorption process is spontaneous. |
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2018-01-09T18:13:36Z2018-01-09T18:13:36ZOctober 22-27, 2017http://repositorio.ipen.br/handle/123456789/28267Cesium is one of the fission products of major radiological concern, it is often found in nuclear radioactive waste generated at nuclear power plants. Graphene Oxide (GO) has attracted great attention due to its functionalized surface, which includes hydroxyl, epoxy, carbonyl and carboxyl groups, with great capacity of complexation with metal ions and can be used as adsorbent to remove cations from aqueous solutions. In this work, a treatment of radioactive waste containing 137Cs was studied. For the batch experiments of Cs+ removal, 133Cs concentrations remained after the adsorption were determined by Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) and the results obtained were analyzed according to the Langmuir and Freundlich isotherms models. The kinetics of adsorption and Gibbs free energy were also determined. The Langmuir model was the best fit and defined a favorable adsorption. The cesium adsorption process is the pseudo-second model and the Gibbs free energy calculation indicated that the adsorption process is spontaneous.Submitted by Marco Antonio Oliveira da Silva (maosilva@ipen.br) on 2018-01-09T18:13:36Z No. of bitstreams: 1 24092.pdf: 272541 bytes, checksum: e1c36d77ab807a79f8bb62d8fe7bea82 (MD5)Made available in DSpace on 2018-01-09T18:13:36Z (GMT). No. of bitstreams: 1 24092.pdf: 272541 bytes, checksum: e1c36d77ab807a79f8bb62d8fe7bea82 (MD5)Associa????o Brasileira de Energia Nuclearadsorption isothermsaqueous solutionscesium 137free enthalpygraphenelangmuir frequencyliquid wastesradioactive wastesStudies of equilibrium and kinetics of adsorption of cesium ions by graphene oxideinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectINACIRio de Janeiro, RJBelo Horizonte, MGOLIVEIRA, FERNANDO M.BUENO, VANESSA N.OSHIRO, MAURICIO T.POTIENS JUNIOR, ADEMAR J.HIROMOTO, GORORODRIGUES, DEBORA F.SAKATA, SOLANGE K.INTERNATIONAL NUCLEAR ATLANTIC CONFERENCEinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional do IPENinstname:Instituto de Pesquisas Energéticas e Nucleares (IPEN)instacron:IPEN240922017OLIVEIRA, FERNANDO M.BUENO, VANESSA N.OSHIRO, MAURICIO T.POTIENS JUNIOR, ADEMAR J.HIROMOTO, GOROSAKATA, SOLANGE K.18-01Proceedings13962102991088473412857038OLIVEIRA, FERNANDO M.:13962:220:SBUENO, VANESSA N.:10299:-1:NOSHIRO, MAURICIO T.:10884:-1:NPOTIENS JUNIOR, ADEMAR J.:734:1120:NHIROMOTO, GORO:1285:1120:NSAKATA, SOLANGE K.:7038:220:NORIGINAL24092.pdf24092.pdfapplication/pdf272541http://repositorio.ipen.br/bitstream/123456789/28267/1/24092.pdfe1c36d77ab807a79f8bb62d8fe7bea82MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748http://repositorio.ipen.br/bitstream/123456789/28267/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52123456789/282672022-03-24 17:02:29.671oai:repositorio.ipen.br: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Repositório InstitucionalPUBhttp://repositorio.ipen.br/oai/requestbibl@ipen.bropendoar:45102022-03-24T17:02:29Repositório Institucional do IPEN - Instituto de Pesquisas Energéticas e Nucleares (IPEN)false |
dc.title.pt_BR.fl_str_mv |
Studies of equilibrium and kinetics of adsorption of cesium ions by graphene oxide |
title |
Studies of equilibrium and kinetics of adsorption of cesium ions by graphene oxide |
spellingShingle |
Studies of equilibrium and kinetics of adsorption of cesium ions by graphene oxide OLIVEIRA, FERNANDO M. adsorption isotherms aqueous solutions cesium 137 free enthalpy graphene langmuir frequency liquid wastes radioactive wastes |
title_short |
Studies of equilibrium and kinetics of adsorption of cesium ions by graphene oxide |
title_full |
Studies of equilibrium and kinetics of adsorption of cesium ions by graphene oxide |
title_fullStr |
Studies of equilibrium and kinetics of adsorption of cesium ions by graphene oxide |
title_full_unstemmed |
Studies of equilibrium and kinetics of adsorption of cesium ions by graphene oxide |
title_sort |
Studies of equilibrium and kinetics of adsorption of cesium ions by graphene oxide |
author |
OLIVEIRA, FERNANDO M. |
author_facet |
OLIVEIRA, FERNANDO M. BUENO, VANESSA N. OSHIRO, MAURICIO T. POTIENS JUNIOR, ADEMAR J. HIROMOTO, GORO RODRIGUES, DEBORA F. SAKATA, SOLANGE K. INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE |
author_role |
author |
author2 |
BUENO, VANESSA N. OSHIRO, MAURICIO T. POTIENS JUNIOR, ADEMAR J. HIROMOTO, GORO RODRIGUES, DEBORA F. SAKATA, SOLANGE K. INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
OLIVEIRA, FERNANDO M. BUENO, VANESSA N. OSHIRO, MAURICIO T. POTIENS JUNIOR, ADEMAR J. HIROMOTO, GORO RODRIGUES, DEBORA F. SAKATA, SOLANGE K. INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE |
dc.subject.por.fl_str_mv |
adsorption isotherms aqueous solutions cesium 137 free enthalpy graphene langmuir frequency liquid wastes radioactive wastes |
topic |
adsorption isotherms aqueous solutions cesium 137 free enthalpy graphene langmuir frequency liquid wastes radioactive wastes |
description |
Cesium is one of the fission products of major radiological concern, it is often found in nuclear radioactive waste generated at nuclear power plants. Graphene Oxide (GO) has attracted great attention due to its functionalized surface, which includes hydroxyl, epoxy, carbonyl and carboxyl groups, with great capacity of complexation with metal ions and can be used as adsorbent to remove cations from aqueous solutions. In this work, a treatment of radioactive waste containing 137Cs was studied. For the batch experiments of Cs+ removal, 133Cs concentrations remained after the adsorption were determined by Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) and the results obtained were analyzed according to the Langmuir and Freundlich isotherms models. The kinetics of adsorption and Gibbs free energy were also determined. The Langmuir model was the best fit and defined a favorable adsorption. The cesium adsorption process is the pseudo-second model and the Gibbs free energy calculation indicated that the adsorption process is spontaneous. |
publishDate |
2018 |
dc.date.evento.pt_BR.fl_str_mv |
October 22-27, 2017 |
dc.date.accessioned.fl_str_mv |
2018-01-09T18:13:36Z |
dc.date.available.fl_str_mv |
2018-01-09T18:13:36Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://repositorio.ipen.br/handle/123456789/28267 |
url |
http://repositorio.ipen.br/handle/123456789/28267 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.coverage.pt_BR.fl_str_mv |
I |
dc.publisher.none.fl_str_mv |
Associa????o Brasileira de Energia Nuclear |
publisher.none.fl_str_mv |
Associa????o Brasileira de Energia Nuclear |
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reponame:Repositório Institucional do IPEN instname:Instituto de Pesquisas Energéticas e Nucleares (IPEN) instacron:IPEN |
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IPEN |
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IPEN |
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Repositório Institucional do IPEN |
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