articleNanoscale Research LettersAug 17, 2010GOLD OA

Monodisperse α-Fe2O3 Mesoporous Microspheres: One-Step NaCl-Assisted Microwave-Solvothermal Preparation, Size Control and Photocatalytic Property

SCShaowen CaoYZYing‐Jie Zhu

Chinese Academy of Sciences · Shanghai Institute of Ceramics

PubMed
Indexed incrossrefdoajpubmed

Abstract

A simple one-step NaCl-assisted microwave-solvothermal method has been developed for the preparation of monodisperse α-Fe2O3 mesoporous microspheres. In this approach, Fe(NO3)3 · 9H2O is used as the iron source, and polyvinylpyrrolidone (PVP) acts as a surfactant in the presence of NaCl in mixed solvents of H2O and ethanol. Under the present experimental conditions, monodisperse α-Fe2O3 mesoporous microspheres can form via oriented attachment of α-Fe2O3 nanocrystals. One of the advantages of this method is that the size of α-Fe2O3 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…

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Topics & keywords

Topics
Keywords
  • Mesoporous material
  • Polyvinylpyrrolidone
  • Dispersity
  • Materials science
  • Photocatalysis
  • Chemical engineering
  • Nanocrystal
  • Nanotechnology
UN Sustainable Development Goals
  • Clean water and sanitation
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