On the properties of NiO powders obtained by different wet chemical methods and calcination
- Autores
- Alastuey, Patricio; Pais Ospina, Daniel Humberto; Comedi, David Mario; Tirado, Monica Cecilia; Marín Ramírez, Oscar Alonso
- Año de publicación
- 2023
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- NiO powders were synthesized using coprecipitation, sol-gel, and hydrothermal synthesis methods. The powders were subjected to calcination in atmospheric air, followed by recalcination in an O2-rich atmosphere at 800°C for 2 h each. Characterization techniques, such as scanning electron microscopy, X-ray diffraction, energy dispersive X-ray spectroscopy, and microRaman spectroscopy, were utilized. The coprecipitation and hydrothermal methods resulted in disaggregated submicrometric particles. The average size of particles obtained by the coprecipitation method after calcination in atmospheric air and recalcination in an O2-rich atmosphere was 360 ± 140 nm and 400 ± 130 nm, respectively. Regarding the particles obtained by the hydrothermal method, the average size was 190 ± 50 and 220 ± 80 nm for calcined in atmospheric air and recalcined in O2-rich atmosphere, respectively. Conversely, the sol-gel method produced particle aggregates with an average size of 430 ± 150 nm after calcination in atmospheric air and 500 ± 200 nm for calcination in an O2-rich atmosphere. X-ray diffraction analysis revealed that only the hydrothermal method yielded pure NiO without additional Ni-related phases, irrespective of the calcination procedure. In contrast, the coprecipitation sample exhibited a Ni2O3 phase after calcination in atmospheric air, which disappeared after recalcination in an O2-rich atmosphere. The sol-gel-derived sample maintained a Ni phase after both calcination processes. Analysis of the crystallite size demonstrated an increase after recalcination in an O2-rich atmosphere for the hydrothermal and sol-gel-derived samples, while a decrease was observed for the coprecipitation-derived sample. Raman spectra exhibited defect-enabled first-order forbidden phonon modes that were sensitive to the synthesis route. The two magnon phonon modes also demonstrated dependency on the route, indicating variations in defect structures. Photocatalytic evaluation using methylene blue degradation in aqueous solutions indicated better performance for the powders recalcined in an O2-rich atmosphere.
Fil: Alastuey, Patricio. Universidad Nacional de Tucumán. Instituto de Física del Noroeste Argentino. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet Noa Sur. Instituto de Física del Noroeste Argentino; Argentina
Fil: Pais Ospina, Daniel Humberto. Universidad Nacional de Tucumán. Instituto de Física del Noroeste Argentino. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet Noa Sur. Instituto de Física del Noroeste Argentino; Argentina
Fil: Comedi, David Mario. Universidad Nacional de Tucumán. Instituto de Física del Noroeste Argentino. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet Noa Sur. Instituto de Física del Noroeste Argentino; Argentina
Fil: Tirado, Monica Cecilia. Universidad Nacional de Tucumán. Instituto de Física del Noroeste Argentino. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet Noa Sur. Instituto de Física del Noroeste Argentino; Argentina
Fil: Marín Ramírez, Oscar Alonso. Universidad Nacional de Tucumán. Instituto de Física del Noroeste Argentino. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet Noa Sur. Instituto de Física del Noroeste Argentino; Argentina - Materia
-
NIO
PHOTOCATALYSIS
RAMAN SPECTROSCOPY
TWO MAGNON PHONON MODES
WET CHEMICAL SYNTHESIS
X-RAY DIFFRACTION - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/224116
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On the properties of NiO powders obtained by different wet chemical methods and calcinationAlastuey, PatricioPais Ospina, Daniel HumbertoComedi, David MarioTirado, Monica CeciliaMarín Ramírez, Oscar AlonsoNIOPHOTOCATALYSISRAMAN SPECTROSCOPYTWO MAGNON PHONON MODESWET CHEMICAL SYNTHESISX-RAY DIFFRACTIONhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1NiO powders were synthesized using coprecipitation, sol-gel, and hydrothermal synthesis methods. The powders were subjected to calcination in atmospheric air, followed by recalcination in an O2-rich atmosphere at 800°C for 2 h each. Characterization techniques, such as scanning electron microscopy, X-ray diffraction, energy dispersive X-ray spectroscopy, and microRaman spectroscopy, were utilized. The coprecipitation and hydrothermal methods resulted in disaggregated submicrometric particles. The average size of particles obtained by the coprecipitation method after calcination in atmospheric air and recalcination in an O2-rich atmosphere was 360 ± 140 nm and 400 ± 130 nm, respectively. Regarding the particles obtained by the hydrothermal method, the average size was 190 ± 50 and 220 ± 80 nm for calcined in atmospheric air and recalcined in O2-rich atmosphere, respectively. Conversely, the sol-gel method produced particle aggregates with an average size of 430 ± 150 nm after calcination in atmospheric air and 500 ± 200 nm for calcination in an O2-rich atmosphere. X-ray diffraction analysis revealed that only the hydrothermal method yielded pure NiO without additional Ni-related phases, irrespective of the calcination procedure. In contrast, the coprecipitation sample exhibited a Ni2O3 phase after calcination in atmospheric air, which disappeared after recalcination in an O2-rich atmosphere. The sol-gel-derived sample maintained a Ni phase after both calcination processes. Analysis of the crystallite size demonstrated an increase after recalcination in an O2-rich atmosphere for the hydrothermal and sol-gel-derived samples, while a decrease was observed for the coprecipitation-derived sample. Raman spectra exhibited defect-enabled first-order forbidden phonon modes that were sensitive to the synthesis route. The two magnon phonon modes also demonstrated dependency on the route, indicating variations in defect structures. Photocatalytic evaluation using methylene blue degradation in aqueous solutions indicated better performance for the powders recalcined in an O2-rich atmosphere.Fil: Alastuey, Patricio. Universidad Nacional de Tucumán. Instituto de Física del Noroeste Argentino. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet Noa Sur. Instituto de Física del Noroeste Argentino; ArgentinaFil: Pais Ospina, Daniel Humberto. Universidad Nacional de Tucumán. Instituto de Física del Noroeste Argentino. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet Noa Sur. Instituto de Física del Noroeste Argentino; ArgentinaFil: Comedi, David Mario. Universidad Nacional de Tucumán. Instituto de Física del Noroeste Argentino. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet Noa Sur. Instituto de Física del Noroeste Argentino; ArgentinaFil: Tirado, Monica Cecilia. Universidad Nacional de Tucumán. Instituto de Física del Noroeste Argentino. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet Noa Sur. Instituto de Física del Noroeste Argentino; ArgentinaFil: Marín Ramírez, Oscar Alonso. Universidad Nacional de Tucumán. Instituto de Física del Noroeste Argentino. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet Noa Sur. Instituto de Física del Noroeste Argentino; ArgentinaWiley Blackwell Publishing, Inc2023-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/224116Alastuey, Patricio; Pais Ospina, Daniel Humberto; Comedi, David Mario; Tirado, Monica Cecilia; Marín Ramírez, Oscar Alonso; On the properties of NiO powders obtained by different wet chemical methods and calcination; Wiley Blackwell Publishing, Inc; Journal of the American Ceramic Society; 107; 1; 9-2023; 92-1060002-7820CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://ceramics.onlinelibrary.wiley.com/doi/10.1111/jace.19433info:eu-repo/semantics/altIdentifier/doi/10.1111/jace.19433info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:39:00Zoai:ri.conicet.gov.ar:11336/224116instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:39:01.274CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
On the properties of NiO powders obtained by different wet chemical methods and calcination |
title |
On the properties of NiO powders obtained by different wet chemical methods and calcination |
spellingShingle |
On the properties of NiO powders obtained by different wet chemical methods and calcination Alastuey, Patricio NIO PHOTOCATALYSIS RAMAN SPECTROSCOPY TWO MAGNON PHONON MODES WET CHEMICAL SYNTHESIS X-RAY DIFFRACTION |
title_short |
On the properties of NiO powders obtained by different wet chemical methods and calcination |
title_full |
On the properties of NiO powders obtained by different wet chemical methods and calcination |
title_fullStr |
On the properties of NiO powders obtained by different wet chemical methods and calcination |
title_full_unstemmed |
On the properties of NiO powders obtained by different wet chemical methods and calcination |
title_sort |
On the properties of NiO powders obtained by different wet chemical methods and calcination |
dc.creator.none.fl_str_mv |
Alastuey, Patricio Pais Ospina, Daniel Humberto Comedi, David Mario Tirado, Monica Cecilia Marín Ramírez, Oscar Alonso |
author |
Alastuey, Patricio |
author_facet |
Alastuey, Patricio Pais Ospina, Daniel Humberto Comedi, David Mario Tirado, Monica Cecilia Marín Ramírez, Oscar Alonso |
author_role |
author |
author2 |
Pais Ospina, Daniel Humberto Comedi, David Mario Tirado, Monica Cecilia Marín Ramírez, Oscar Alonso |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
NIO PHOTOCATALYSIS RAMAN SPECTROSCOPY TWO MAGNON PHONON MODES WET CHEMICAL SYNTHESIS X-RAY DIFFRACTION |
topic |
NIO PHOTOCATALYSIS RAMAN SPECTROSCOPY TWO MAGNON PHONON MODES WET CHEMICAL SYNTHESIS X-RAY DIFFRACTION |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
NiO powders were synthesized using coprecipitation, sol-gel, and hydrothermal synthesis methods. The powders were subjected to calcination in atmospheric air, followed by recalcination in an O2-rich atmosphere at 800°C for 2 h each. Characterization techniques, such as scanning electron microscopy, X-ray diffraction, energy dispersive X-ray spectroscopy, and microRaman spectroscopy, were utilized. The coprecipitation and hydrothermal methods resulted in disaggregated submicrometric particles. The average size of particles obtained by the coprecipitation method after calcination in atmospheric air and recalcination in an O2-rich atmosphere was 360 ± 140 nm and 400 ± 130 nm, respectively. Regarding the particles obtained by the hydrothermal method, the average size was 190 ± 50 and 220 ± 80 nm for calcined in atmospheric air and recalcined in O2-rich atmosphere, respectively. Conversely, the sol-gel method produced particle aggregates with an average size of 430 ± 150 nm after calcination in atmospheric air and 500 ± 200 nm for calcination in an O2-rich atmosphere. X-ray diffraction analysis revealed that only the hydrothermal method yielded pure NiO without additional Ni-related phases, irrespective of the calcination procedure. In contrast, the coprecipitation sample exhibited a Ni2O3 phase after calcination in atmospheric air, which disappeared after recalcination in an O2-rich atmosphere. The sol-gel-derived sample maintained a Ni phase after both calcination processes. Analysis of the crystallite size demonstrated an increase after recalcination in an O2-rich atmosphere for the hydrothermal and sol-gel-derived samples, while a decrease was observed for the coprecipitation-derived sample. Raman spectra exhibited defect-enabled first-order forbidden phonon modes that were sensitive to the synthesis route. The two magnon phonon modes also demonstrated dependency on the route, indicating variations in defect structures. Photocatalytic evaluation using methylene blue degradation in aqueous solutions indicated better performance for the powders recalcined in an O2-rich atmosphere. Fil: Alastuey, Patricio. Universidad Nacional de Tucumán. Instituto de Física del Noroeste Argentino. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet Noa Sur. Instituto de Física del Noroeste Argentino; Argentina Fil: Pais Ospina, Daniel Humberto. Universidad Nacional de Tucumán. Instituto de Física del Noroeste Argentino. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet Noa Sur. Instituto de Física del Noroeste Argentino; Argentina Fil: Comedi, David Mario. Universidad Nacional de Tucumán. Instituto de Física del Noroeste Argentino. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet Noa Sur. Instituto de Física del Noroeste Argentino; Argentina Fil: Tirado, Monica Cecilia. Universidad Nacional de Tucumán. Instituto de Física del Noroeste Argentino. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet Noa Sur. Instituto de Física del Noroeste Argentino; Argentina Fil: Marín Ramírez, Oscar Alonso. Universidad Nacional de Tucumán. Instituto de Física del Noroeste Argentino. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet Noa Sur. Instituto de Física del Noroeste Argentino; Argentina |
description |
NiO powders were synthesized using coprecipitation, sol-gel, and hydrothermal synthesis methods. The powders were subjected to calcination in atmospheric air, followed by recalcination in an O2-rich atmosphere at 800°C for 2 h each. Characterization techniques, such as scanning electron microscopy, X-ray diffraction, energy dispersive X-ray spectroscopy, and microRaman spectroscopy, were utilized. The coprecipitation and hydrothermal methods resulted in disaggregated submicrometric particles. The average size of particles obtained by the coprecipitation method after calcination in atmospheric air and recalcination in an O2-rich atmosphere was 360 ± 140 nm and 400 ± 130 nm, respectively. Regarding the particles obtained by the hydrothermal method, the average size was 190 ± 50 and 220 ± 80 nm for calcined in atmospheric air and recalcined in O2-rich atmosphere, respectively. Conversely, the sol-gel method produced particle aggregates with an average size of 430 ± 150 nm after calcination in atmospheric air and 500 ± 200 nm for calcination in an O2-rich atmosphere. X-ray diffraction analysis revealed that only the hydrothermal method yielded pure NiO without additional Ni-related phases, irrespective of the calcination procedure. In contrast, the coprecipitation sample exhibited a Ni2O3 phase after calcination in atmospheric air, which disappeared after recalcination in an O2-rich atmosphere. The sol-gel-derived sample maintained a Ni phase after both calcination processes. Analysis of the crystallite size demonstrated an increase after recalcination in an O2-rich atmosphere for the hydrothermal and sol-gel-derived samples, while a decrease was observed for the coprecipitation-derived sample. Raman spectra exhibited defect-enabled first-order forbidden phonon modes that were sensitive to the synthesis route. The two magnon phonon modes also demonstrated dependency on the route, indicating variations in defect structures. Photocatalytic evaluation using methylene blue degradation in aqueous solutions indicated better performance for the powders recalcined in an O2-rich atmosphere. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-09 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/224116 Alastuey, Patricio; Pais Ospina, Daniel Humberto; Comedi, David Mario; Tirado, Monica Cecilia; Marín Ramírez, Oscar Alonso; On the properties of NiO powders obtained by different wet chemical methods and calcination; Wiley Blackwell Publishing, Inc; Journal of the American Ceramic Society; 107; 1; 9-2023; 92-106 0002-7820 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/224116 |
identifier_str_mv |
Alastuey, Patricio; Pais Ospina, Daniel Humberto; Comedi, David Mario; Tirado, Monica Cecilia; Marín Ramírez, Oscar Alonso; On the properties of NiO powders obtained by different wet chemical methods and calcination; Wiley Blackwell Publishing, Inc; Journal of the American Ceramic Society; 107; 1; 9-2023; 92-106 0002-7820 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://ceramics.onlinelibrary.wiley.com/doi/10.1111/jace.19433 info:eu-repo/semantics/altIdentifier/doi/10.1111/jace.19433 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Wiley Blackwell Publishing, Inc |
publisher.none.fl_str_mv |
Wiley Blackwell Publishing, Inc |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844613233756864512 |
score |
13.070432 |