Cr-N co-doped ZnO nanoparticles: Synthesis, characterization and photocatalytic activity for degradation of thymol blue

Here we report the synthesis of CrN co-doped ZnO for the first time. Zinc oxide (ZnO) nanoparticles were synthesized by direct precipitation method via the reaction between zinc nitrate [Zn(NO3)2 .6H2O] and ammonium carbonate [(NH4)2CO3] in aqueous solutions with proper concentration. Modified photo...

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Detalles Bibliográficos
Autores: Nibret, Aleb, Yadav, O. P., Díaz Carretero, Isabel, Taddesse, Abi M.
Tipo de recurso: artículo
Fecha de publicación:2015
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/189774
Acceso en línea:http://hdl.handle.net/10261/189774
Access Level:acceso abierto
Palabra clave:Thymol blue
Co-doping
Zinc oxide
Impregnation method
Precipitation method
Photocatalysts
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spelling Cr-N co-doped ZnO nanoparticles: Synthesis, characterization and photocatalytic activity for degradation of thymol blueNibret, AlebYadav, O. P.Díaz Carretero, IsabelTaddesse, Abi M.Thymol blueCo-dopingZinc oxideImpregnation methodPrecipitation methodPhotocatalystsHere we report the synthesis of CrN co-doped ZnO for the first time. Zinc oxide (ZnO) nanoparticles were synthesized by direct precipitation method via the reaction between zinc nitrate [Zn(NO3)2 .6H2O] and ammonium carbonate [(NH4)2CO3] in aqueous solutions with proper concentration. Modified photocatalysts were synthesized by the incipient wetness impregnation method (chromium-doped ZnO) and by solid state reactions using ZnO and urea as precursors (nitrogen-doped ZnO). Chromium-nitrogen co-doped ZnO nanomaterials were prepared from the already prepared N-doped ZnO nanomaterials via one step impregnation method. The as-synthesized photocatalysts were investigated by XRD, BET, SEM-EDX, FTIR, and UV–Vis techniques. Photocatalytic degradation of thymol blue using as-synthesized photocatalysts was studied under visible as well as UV irradiations. Highest photocatalytic degradation efficiency of chromium-nitrogen co-doped zinc oxide could be attributed to the lower rate of recombination of the photo-generated electrons and holes as well as to its lower band gap energy as the result of the co-doping. Photocatalytic degradation is found to follow pseudo first order kinetics.IDThe financial support from the Spanish Government MINECO (project MAT2012-31127) is acknowledged.Publisher's versionChemical Society of EthiopiaMinisterio de Economía y Competitividad (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2019201920152019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/189774reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.4314/bcse.v29i2.8Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1897742026-05-22T06:33:51Z
dc.title.none.fl_str_mv Cr-N co-doped ZnO nanoparticles: Synthesis, characterization and photocatalytic activity for degradation of thymol blue
title Cr-N co-doped ZnO nanoparticles: Synthesis, characterization and photocatalytic activity for degradation of thymol blue
spellingShingle Cr-N co-doped ZnO nanoparticles: Synthesis, characterization and photocatalytic activity for degradation of thymol blue
Nibret, Aleb
Thymol blue
Co-doping
Zinc oxide
Impregnation method
Precipitation method
Photocatalysts
title_short Cr-N co-doped ZnO nanoparticles: Synthesis, characterization and photocatalytic activity for degradation of thymol blue
title_full Cr-N co-doped ZnO nanoparticles: Synthesis, characterization and photocatalytic activity for degradation of thymol blue
title_fullStr Cr-N co-doped ZnO nanoparticles: Synthesis, characterization and photocatalytic activity for degradation of thymol blue
title_full_unstemmed Cr-N co-doped ZnO nanoparticles: Synthesis, characterization and photocatalytic activity for degradation of thymol blue
title_sort Cr-N co-doped ZnO nanoparticles: Synthesis, characterization and photocatalytic activity for degradation of thymol blue
dc.creator.none.fl_str_mv Nibret, Aleb
Yadav, O. P.
Díaz Carretero, Isabel
Taddesse, Abi M.
author Nibret, Aleb
author_facet Nibret, Aleb
Yadav, O. P.
Díaz Carretero, Isabel
Taddesse, Abi M.
author_role author
author2 Yadav, O. P.
Díaz Carretero, Isabel
Taddesse, Abi M.
author2_role author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Thymol blue
Co-doping
Zinc oxide
Impregnation method
Precipitation method
Photocatalysts
topic Thymol blue
Co-doping
Zinc oxide
Impregnation method
Precipitation method
Photocatalysts
description Here we report the synthesis of CrN co-doped ZnO for the first time. Zinc oxide (ZnO) nanoparticles were synthesized by direct precipitation method via the reaction between zinc nitrate [Zn(NO3)2 .6H2O] and ammonium carbonate [(NH4)2CO3] in aqueous solutions with proper concentration. Modified photocatalysts were synthesized by the incipient wetness impregnation method (chromium-doped ZnO) and by solid state reactions using ZnO and urea as precursors (nitrogen-doped ZnO). Chromium-nitrogen co-doped ZnO nanomaterials were prepared from the already prepared N-doped ZnO nanomaterials via one step impregnation method. The as-synthesized photocatalysts were investigated by XRD, BET, SEM-EDX, FTIR, and UV–Vis techniques. Photocatalytic degradation of thymol blue using as-synthesized photocatalysts was studied under visible as well as UV irradiations. Highest photocatalytic degradation efficiency of chromium-nitrogen co-doped zinc oxide could be attributed to the lower rate of recombination of the photo-generated electrons and holes as well as to its lower band gap energy as the result of the co-doping. Photocatalytic degradation is found to follow pseudo first order kinetics.
publishDate 2015
dc.date.none.fl_str_mv 2015
2019
2019
2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/189774
url http://hdl.handle.net/10261/189774
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.4314/bcse.v29i2.8
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Chemical Society of Ethiopia
publisher.none.fl_str_mv Chemical Society of Ethiopia
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.812429

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