Monodisperse α-Fe(2)O(3) Mesoporous Microspheres: One-Step NaCl-Assisted Microwave-Solvothermal Preparation, Size Control and Photocatalytic Property

A simple one-step NaCl-assisted microwave-solvothermal method has been developed for the preparation of monodisperse α-Fe(2)O(3) mesoporous microspheres. In this approach, Fe(NO(3))(3) · 9H(2)O is used as the iron source, and polyvinylpyrrolidone (PVP) acts as a surfactant in the presence of NaCl in...

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Detalles Bibliográficos
Autores principales: Cao, Shao-Wen, Zhu, Ying-Jie
Formato: Texto
Lenguaje:English
Publicado: Springer 2010
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3102339/
https://www.ncbi.nlm.nih.gov/pubmed/21711573
http://dx.doi.org/10.1007/s11671-010-9742-7
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author Cao, Shao-Wen
Zhu, Ying-Jie
author_facet Cao, Shao-Wen
Zhu, Ying-Jie
author_sort Cao, Shao-Wen
collection PubMed
description A simple one-step NaCl-assisted microwave-solvothermal method has been developed for the preparation of monodisperse α-Fe(2)O(3) mesoporous microspheres. In this approach, Fe(NO(3))(3) · 9H(2)O is used as the iron source, and polyvinylpyrrolidone (PVP) acts as a surfactant in the presence of NaCl in mixed solvents of H(2)O and ethanol. Under the present experimental conditions, monodisperse α-Fe(2)O(3) mesoporous microspheres can form via oriented attachment of α-Fe(2)O(3) nanocrystals. One of the advantages of this method is that the size of α-Fe(2)O(3) mesoporous microspheres can be adjusted in the range from ca. 170 to ca. 260 nm by changing the experimental parameters. High photocatalytic activities in the degradation of salicylic acid are observed for α-Fe(2)O(3) mesoporous microspheres with different specific surface areas.
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spelling pubmed-31023392011-05-31 Monodisperse α-Fe(2)O(3) Mesoporous Microspheres: One-Step NaCl-Assisted Microwave-Solvothermal Preparation, Size Control and Photocatalytic Property Cao, Shao-Wen Zhu, Ying-Jie Nanoscale Res Lett Nano Express A simple one-step NaCl-assisted microwave-solvothermal method has been developed for the preparation of monodisperse α-Fe(2)O(3) mesoporous microspheres. In this approach, Fe(NO(3))(3) · 9H(2)O is used as the iron source, and polyvinylpyrrolidone (PVP) acts as a surfactant in the presence of NaCl in mixed solvents of H(2)O and ethanol. Under the present experimental conditions, monodisperse α-Fe(2)O(3) mesoporous microspheres can form via oriented attachment of α-Fe(2)O(3) nanocrystals. One of the advantages of this method is that the size of α-Fe(2)O(3) mesoporous microspheres can be adjusted in the range from ca. 170 to ca. 260 nm by changing the experimental parameters. High photocatalytic activities in the degradation of salicylic acid are observed for α-Fe(2)O(3) mesoporous microspheres with different specific surface areas. Springer 2010-08-18 /pmc/articles/PMC3102339/ /pubmed/21711573 http://dx.doi.org/10.1007/s11671-010-9742-7 Text en Copyright ©2010 Cao and Zhu. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Nano Express
Cao, Shao-Wen
Zhu, Ying-Jie
Monodisperse α-Fe(2)O(3) Mesoporous Microspheres: One-Step NaCl-Assisted Microwave-Solvothermal Preparation, Size Control and Photocatalytic Property
title Monodisperse α-Fe(2)O(3) Mesoporous Microspheres: One-Step NaCl-Assisted Microwave-Solvothermal Preparation, Size Control and Photocatalytic Property
title_full Monodisperse α-Fe(2)O(3) Mesoporous Microspheres: One-Step NaCl-Assisted Microwave-Solvothermal Preparation, Size Control and Photocatalytic Property
title_fullStr Monodisperse α-Fe(2)O(3) Mesoporous Microspheres: One-Step NaCl-Assisted Microwave-Solvothermal Preparation, Size Control and Photocatalytic Property
title_full_unstemmed Monodisperse α-Fe(2)O(3) Mesoporous Microspheres: One-Step NaCl-Assisted Microwave-Solvothermal Preparation, Size Control and Photocatalytic Property
title_short Monodisperse α-Fe(2)O(3) Mesoporous Microspheres: One-Step NaCl-Assisted Microwave-Solvothermal Preparation, Size Control and Photocatalytic Property
title_sort monodisperse α-fe(2)o(3) mesoporous microspheres: one-step nacl-assisted microwave-solvothermal preparation, size control and photocatalytic property
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3102339/
https://www.ncbi.nlm.nih.gov/pubmed/21711573
http://dx.doi.org/10.1007/s11671-010-9742-7
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AT zhuyingjie monodisperseafe2o3mesoporousmicrospheresonestepnaclassistedmicrowavesolvothermalpreparationsizecontrolandphotocatalyticproperty

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