Structural Refinement, Morphological Features, Optical Properties, and Adsorption Capacity of alpha-Ag2WO4 Nanocrystals/SBA-15 Mesoporous on Rhodamine B Dye
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s10904-020-01560-3 http://hdl.handle.net/11449/197764 |
Resumo: | alpha-Ag2WO4 nanocrystals, mesoporous silica (SBA-15), and alpha-Ag2WO4/SBA-15 as a nanocomposite were prepared by sonochemical, hydrothermal, and in situ sonochemical methods respectively. Samples were characterized by X-ray diffraction (XRD), Rietveld refinement, micro-Raman, Fourier-transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FE-SEM), X-ray photoelectron spectroscopy (XPS), N-2 adsorption/desorption, ultraviolet-visible (UV-Vis) diffuse reflectance spectroscopy, and Zeta potential. XRD patterns, Rietveld refinement, and XPS spectra confirmed the formation of alpha-Ag2WO4, SBA-15, and alpha-Ag2WO4/SBA-15. XPS spectra evidenced the formation of metallic silver during analysis. FE-SEM images illustrated the deposition of alpha-Ag2WO4 nanocrystals mainly on the external surface of SBA-15. N-2 adsorption data showed that the textural properties of alpha-Ag2WO4/SBA-15 were similar to pure SBA-15. Zeta potential data demonstrated that all samples synthetized have negatively charged surface. The materials were tested as adsorbents for the dye cationic rhodamine B. The adsorption behavior of rhodamine B onto alpha-Ag2WO4, SBA-15, and alpha-Ag2WO4/SBA-15 correspond to Langmuir adsorption isotherm and pseudo-second-order kinetics. The maximum adsorption capacity of alpha-Ag2WO4/SBA-15 was up to 150 mg g(-1) and 99% removal efficiency for RhB 20 mg L-1 in 15 min. Furthermore, 80% of RhB could be recuperated from adsorbents at pH 7. Graphic |
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Structural Refinement, Morphological Features, Optical Properties, and Adsorption Capacity of alpha-Ag2WO4 Nanocrystals/SBA-15 Mesoporous on Rhodamine B Dyealpha-Ag2WO4 nanocrystalsSonochemicalSBA-15AdsorptionRhodaminealpha-Ag2WO4 nanocrystals, mesoporous silica (SBA-15), and alpha-Ag2WO4/SBA-15 as a nanocomposite were prepared by sonochemical, hydrothermal, and in situ sonochemical methods respectively. Samples were characterized by X-ray diffraction (XRD), Rietveld refinement, micro-Raman, Fourier-transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FE-SEM), X-ray photoelectron spectroscopy (XPS), N-2 adsorption/desorption, ultraviolet-visible (UV-Vis) diffuse reflectance spectroscopy, and Zeta potential. XRD patterns, Rietveld refinement, and XPS spectra confirmed the formation of alpha-Ag2WO4, SBA-15, and alpha-Ag2WO4/SBA-15. XPS spectra evidenced the formation of metallic silver during analysis. FE-SEM images illustrated the deposition of alpha-Ag2WO4 nanocrystals mainly on the external surface of SBA-15. N-2 adsorption data showed that the textural properties of alpha-Ag2WO4/SBA-15 were similar to pure SBA-15. Zeta potential data demonstrated that all samples synthetized have negatively charged surface. The materials were tested as adsorbents for the dye cationic rhodamine B. The adsorption behavior of rhodamine B onto alpha-Ag2WO4, SBA-15, and alpha-Ag2WO4/SBA-15 correspond to Langmuir adsorption isotherm and pseudo-second-order kinetics. The maximum adsorption capacity of alpha-Ag2WO4/SBA-15 was up to 150 mg g(-1) and 99% removal efficiency for RhB 20 mg L-1 in 15 min. Furthermore, 80% of RhB could be recuperated from adsorbents at pH 7. GraphicCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Univ Fed Piaui, Dept Chem, BR-64049550 Teresina, PI, BrazilFANAT State Univ Rio Grande Norte, Dept Chem, BR-59610210 Mossoro, RN, BrazilUniv Estadual Piaui, GERATEC CCN DQ, Joao Cabral S-N, BR-64002150 Teresina, PI, BrazilUniv Estadual Paulista, CDMF, POB 355, BR-14801907 Araraquara, SP, BrazilUniv Estadual Paulista, CDMF, POB 355, BR-14801907 Araraquara, SP, BrazilCNPq: 455864/2014-4CNPq: 307559/2016-8CNPq: 305757/2018-0SpringerUniv Fed PiauiFANAT State Univ Rio Grande NorteUniv Estadual PiauiUniversidade Estadual Paulista (Unesp)Silva, F. C. M.Silva, L. K. R.Santos, A. G. D.Caldeira, V. P. S.Cruz-Filho, J. F.Cavalcante, L. S.Longo, E. [UNESP]Luz Jr., G. E.2020-12-11T17:02:08Z2020-12-11T17:02:08Z2020-05-02info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article3626-3645http://dx.doi.org/10.1007/s10904-020-01560-3Journal Of Inorganic And Organometallic Polymers And Materials. Dordrecht: Springer, v. 30, n. 9, p. 3626-3645, 2020.1574-1443http://hdl.handle.net/11449/19776410.1007/s10904-020-01560-3WOS:000530222000001Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal Of Inorganic And Organometallic Polymers And Materialsinfo:eu-repo/semantics/openAccess2021-10-23T07:46:24Zoai:repositorio.unesp.br:11449/197764Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:49:17.264616Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Structural Refinement, Morphological Features, Optical Properties, and Adsorption Capacity of alpha-Ag2WO4 Nanocrystals/SBA-15 Mesoporous on Rhodamine B Dye |
title |
Structural Refinement, Morphological Features, Optical Properties, and Adsorption Capacity of alpha-Ag2WO4 Nanocrystals/SBA-15 Mesoporous on Rhodamine B Dye |
spellingShingle |
Structural Refinement, Morphological Features, Optical Properties, and Adsorption Capacity of alpha-Ag2WO4 Nanocrystals/SBA-15 Mesoporous on Rhodamine B Dye Silva, F. C. M. alpha-Ag2WO4 nanocrystals Sonochemical SBA-15 Adsorption Rhodamine |
title_short |
Structural Refinement, Morphological Features, Optical Properties, and Adsorption Capacity of alpha-Ag2WO4 Nanocrystals/SBA-15 Mesoporous on Rhodamine B Dye |
title_full |
Structural Refinement, Morphological Features, Optical Properties, and Adsorption Capacity of alpha-Ag2WO4 Nanocrystals/SBA-15 Mesoporous on Rhodamine B Dye |
title_fullStr |
Structural Refinement, Morphological Features, Optical Properties, and Adsorption Capacity of alpha-Ag2WO4 Nanocrystals/SBA-15 Mesoporous on Rhodamine B Dye |
title_full_unstemmed |
Structural Refinement, Morphological Features, Optical Properties, and Adsorption Capacity of alpha-Ag2WO4 Nanocrystals/SBA-15 Mesoporous on Rhodamine B Dye |
title_sort |
Structural Refinement, Morphological Features, Optical Properties, and Adsorption Capacity of alpha-Ag2WO4 Nanocrystals/SBA-15 Mesoporous on Rhodamine B Dye |
author |
Silva, F. C. M. |
author_facet |
Silva, F. C. M. Silva, L. K. R. Santos, A. G. D. Caldeira, V. P. S. Cruz-Filho, J. F. Cavalcante, L. S. Longo, E. [UNESP] Luz Jr., G. E. |
author_role |
author |
author2 |
Silva, L. K. R. Santos, A. G. D. Caldeira, V. P. S. Cruz-Filho, J. F. Cavalcante, L. S. Longo, E. [UNESP] Luz Jr., G. E. |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Univ Fed Piaui FANAT State Univ Rio Grande Norte Univ Estadual Piaui Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Silva, F. C. M. Silva, L. K. R. Santos, A. G. D. Caldeira, V. P. S. Cruz-Filho, J. F. Cavalcante, L. S. Longo, E. [UNESP] Luz Jr., G. E. |
dc.subject.por.fl_str_mv |
alpha-Ag2WO4 nanocrystals Sonochemical SBA-15 Adsorption Rhodamine |
topic |
alpha-Ag2WO4 nanocrystals Sonochemical SBA-15 Adsorption Rhodamine |
description |
alpha-Ag2WO4 nanocrystals, mesoporous silica (SBA-15), and alpha-Ag2WO4/SBA-15 as a nanocomposite were prepared by sonochemical, hydrothermal, and in situ sonochemical methods respectively. Samples were characterized by X-ray diffraction (XRD), Rietveld refinement, micro-Raman, Fourier-transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FE-SEM), X-ray photoelectron spectroscopy (XPS), N-2 adsorption/desorption, ultraviolet-visible (UV-Vis) diffuse reflectance spectroscopy, and Zeta potential. XRD patterns, Rietveld refinement, and XPS spectra confirmed the formation of alpha-Ag2WO4, SBA-15, and alpha-Ag2WO4/SBA-15. XPS spectra evidenced the formation of metallic silver during analysis. FE-SEM images illustrated the deposition of alpha-Ag2WO4 nanocrystals mainly on the external surface of SBA-15. N-2 adsorption data showed that the textural properties of alpha-Ag2WO4/SBA-15 were similar to pure SBA-15. Zeta potential data demonstrated that all samples synthetized have negatively charged surface. The materials were tested as adsorbents for the dye cationic rhodamine B. The adsorption behavior of rhodamine B onto alpha-Ag2WO4, SBA-15, and alpha-Ag2WO4/SBA-15 correspond to Langmuir adsorption isotherm and pseudo-second-order kinetics. The maximum adsorption capacity of alpha-Ag2WO4/SBA-15 was up to 150 mg g(-1) and 99% removal efficiency for RhB 20 mg L-1 in 15 min. Furthermore, 80% of RhB could be recuperated from adsorbents at pH 7. Graphic |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-11T17:02:08Z 2020-12-11T17:02:08Z 2020-05-02 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1007/s10904-020-01560-3 Journal Of Inorganic And Organometallic Polymers And Materials. Dordrecht: Springer, v. 30, n. 9, p. 3626-3645, 2020. 1574-1443 http://hdl.handle.net/11449/197764 10.1007/s10904-020-01560-3 WOS:000530222000001 |
url |
http://dx.doi.org/10.1007/s10904-020-01560-3 http://hdl.handle.net/11449/197764 |
identifier_str_mv |
Journal Of Inorganic And Organometallic Polymers And Materials. Dordrecht: Springer, v. 30, n. 9, p. 3626-3645, 2020. 1574-1443 10.1007/s10904-020-01560-3 WOS:000530222000001 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal Of Inorganic And Organometallic Polymers And Materials |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
3626-3645 |
dc.publisher.none.fl_str_mv |
Springer |
publisher.none.fl_str_mv |
Springer |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1808129253637619712 |