TiO2 decorated sand grains for photodegradation of pollutants: Methylene blue and ciprofloxacin study

This study shows a preparation and evaluation of a new non-expensive TiO2 based photocatalyst built over sand grains surfaces as an alternative green technology for water treatment. The semiconductor covalently bonded to the silica sand grains (sand@TiO2) prepared by hydrolysis of isopropoxide ortho...

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Detalhes bibliográficos
Autores: Lacerda, Jorge A.S., Macedo, Allan M., Teixeira, Rodolfo I., Simões, Grazieli, Ribeiro, Emerson S. [UNESP], Forero, Josué S.B., Corrêa, Rodrigo J. [UNESP]
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:Brasil
Recursos:Universidade Estadual Paulista (UNESP)
Repositorio:Repositório Institucional da UNESP
Idioma:inglés
OAI Identifier:oai:repositorio.unesp.br:11449/199874
Acesso em linha:http://dx.doi.org/10.21577/0103-5053.20190129
http://hdl.handle.net/11449/199874
Access Level:acceso abierto
Palavra-chave:Ciprofloxacin
Methylene blue
Photodegradation
Reusable catalyst
TiO2
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spelling TiO2 decorated sand grains for photodegradation of pollutants: Methylene blue and ciprofloxacin studyCiprofloxacinMethylene bluePhotodegradationReusable catalystTiO2This study shows a preparation and evaluation of a new non-expensive TiO2 based photocatalyst built over sand grains surfaces as an alternative green technology for water treatment. The semiconductor covalently bonded to the silica sand grains (sand@TiO2) prepared by hydrolysis of isopropoxide orthotitane over sand grains, showed a high surface area 296 m2 g-1 and a high reaction rate for methylene blue (MB) photodegradation (0.064 min-1), on steady state condition by using 3 g of sand@TiO2 and an MB solution (20 mL, 3 × 10-5 mol L-1) or ciprofloxacin hydrochloride (CIP) solution (20 mL, 1.9 × 10-3 mol L-1). Under UV irradiation with a medium pressure Hg lamp, the total MB removal reached 70% after 7 min and 45% for CIP in 60 min. Further, the photocatalyst showed to be a promising reusable material for removal of ciprofloxacin hydrochloride antibiotic (CIP) on wastewater. This new material appears as a new promising low cost and low impact reusable catalyst for water treatment.Centro de Pesquisas e Desenvolvimento Leopoldo Américo Miguez de Mello (CENPES) Petróleo Brasileiro S.A. (PETROBRAS)Instituto de Química Universidade Federal do Rio de Janeiro (UFRJ)Instituto Nacional de Tecnologias Alternativas para Detecção Avaliação Toxicológica e Remoção de Micropoluentes e Radioativos (INCT-DATREM) Instituto de Química Universidade Estadual Paulista (Unesp), CP 355Instituto Nacional de Tecnologias Alternativas para Detecção Avaliação Toxicológica e Remoção de Micropoluentes e Radioativos (INCT-DATREM) Instituto de Química Universidade Estadual Paulista (Unesp), CP 355Petróleo Brasileiro S.A. (PETROBRAS)Universidade Federal do Rio de Janeiro (UFRJ)Universidade Estadual Paulista (Unesp)2020-12-12T01:51:40Z2020-12-12T01:51:40Z2020-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article201-210application/pdfhttp://dx.doi.org/10.21577/0103-5053.20190129Journal of the Brazilian Chemical Society, v. 31, n. 1, p. 201-210, 2020.1678-47900103-5053http://hdl.handle.net/11449/19987410.21577/0103-5053.20190129S0103-505320200001002012-s2.0-85077140720S0103-50532020000100201.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of the Brazilian Chemical Societyinfo:eu-repo/semantics/openAccessLacerda, Jorge A.S.Macedo, Allan M.Teixeira, Rodolfo I.Simões, GrazieliRibeiro, Emerson S. [UNESP]Forero, Josué S.B.Corrêa, Rodrigo J. [UNESP]2025-05-28T08:44:54Zoai:repositorio.unesp.br:11449/199874Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462025-05-28T08:44:54Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv TiO2 decorated sand grains for photodegradation of pollutants: Methylene blue and ciprofloxacin study
title TiO2 decorated sand grains for photodegradation of pollutants: Methylene blue and ciprofloxacin study
spellingShingle TiO2 decorated sand grains for photodegradation of pollutants: Methylene blue and ciprofloxacin study
Lacerda, Jorge A.S.
Ciprofloxacin
Methylene blue
Photodegradation
Reusable catalyst
TiO2
title_short TiO2 decorated sand grains for photodegradation of pollutants: Methylene blue and ciprofloxacin study
title_full TiO2 decorated sand grains for photodegradation of pollutants: Methylene blue and ciprofloxacin study
title_fullStr TiO2 decorated sand grains for photodegradation of pollutants: Methylene blue and ciprofloxacin study
title_full_unstemmed TiO2 decorated sand grains for photodegradation of pollutants: Methylene blue and ciprofloxacin study
title_sort TiO2 decorated sand grains for photodegradation of pollutants: Methylene blue and ciprofloxacin study
dc.creator.none.fl_str_mv Lacerda, Jorge A.S.
Macedo, Allan M.
Teixeira, Rodolfo I.
Simões, Grazieli
Ribeiro, Emerson S. [UNESP]
Forero, Josué S.B.
Corrêa, Rodrigo J. [UNESP]
author Lacerda, Jorge A.S.
author_facet Lacerda, Jorge A.S.
Macedo, Allan M.
Teixeira, Rodolfo I.
Simões, Grazieli
Ribeiro, Emerson S. [UNESP]
Forero, Josué S.B.
Corrêa, Rodrigo J. [UNESP]
author_role author
author2 Macedo, Allan M.
Teixeira, Rodolfo I.
Simões, Grazieli
Ribeiro, Emerson S. [UNESP]
Forero, Josué S.B.
Corrêa, Rodrigo J. [UNESP]
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Petróleo Brasileiro S.A. (PETROBRAS)
Universidade Federal do Rio de Janeiro (UFRJ)
Universidade Estadual Paulista (Unesp)
dc.subject.por.fl_str_mv Ciprofloxacin
Methylene blue
Photodegradation
Reusable catalyst
TiO2
topic Ciprofloxacin
Methylene blue
Photodegradation
Reusable catalyst
TiO2
description This study shows a preparation and evaluation of a new non-expensive TiO2 based photocatalyst built over sand grains surfaces as an alternative green technology for water treatment. The semiconductor covalently bonded to the silica sand grains (sand@TiO2) prepared by hydrolysis of isopropoxide orthotitane over sand grains, showed a high surface area 296 m2 g-1 and a high reaction rate for methylene blue (MB) photodegradation (0.064 min-1), on steady state condition by using 3 g of sand@TiO2 and an MB solution (20 mL, 3 × 10-5 mol L-1) or ciprofloxacin hydrochloride (CIP) solution (20 mL, 1.9 × 10-3 mol L-1). Under UV irradiation with a medium pressure Hg lamp, the total MB removal reached 70% after 7 min and 45% for CIP in 60 min. Further, the photocatalyst showed to be a promising reusable material for removal of ciprofloxacin hydrochloride antibiotic (CIP) on wastewater. This new material appears as a new promising low cost and low impact reusable catalyst for water treatment.
publishDate 2020
dc.date.none.fl_str_mv 2020-12-12T01:51:40Z
2020-12-12T01:51:40Z
2020-01-01
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/10.21577/0103-5053.20190129
Journal of the Brazilian Chemical Society, v. 31, n. 1, p. 201-210, 2020.
1678-4790
0103-5053
http://hdl.handle.net/11449/199874
10.21577/0103-5053.20190129
S0103-50532020000100201
2-s2.0-85077140720
S0103-50532020000100201.pdf
url http://dx.doi.org/10.21577/0103-5053.20190129
http://hdl.handle.net/11449/199874
identifier_str_mv Journal of the Brazilian Chemical Society, v. 31, n. 1, p. 201-210, 2020.
1678-4790
0103-5053
10.21577/0103-5053.20190129
S0103-50532020000100201
2-s2.0-85077140720
S0103-50532020000100201.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Journal of the Brazilian Chemical Society
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 201-210
application/pdf
dc.source.none.fl_str_mv Scopus
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 repositoriounesp@unesp.br
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score 15,301603

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