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The α-Fe2O3@SiO2 reddish pigments with core-shell structure were successfully prepared by hydrothermal and Stöber methods. The structure, morphology, and chromaticity of the synthesized pigments were characterized by XRD, SEM, TEM, FTIR, XPS, and colorimetry. The results indicated that the as-prepared pigments have the characteristics of narrow particle size distribution, high dispersion, and good sphericity. The α-Fe2O3@SiO2 reddish pigments were uniform and well dispersed in solution. In addition, the pigments with different shell thickness were also prepared, and the effect of shell thickness on the color performance of the pigments was discussed.


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Preparation and characterization of monodispersed spherical Fe2O3@SiO2 reddish pigments with core-shell structure

Show Author's information Shile CHENa,bMengting CHENGbYing LANGaChuanjin TIANaHongkang WEIaChang-An Wangb( )
School of Materials Science and Engineering, Jingdezhen Ceramic Institute, Jingdezhen 333403, China
State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China

Abstract

The α-Fe2O3@SiO2 reddish pigments with core-shell structure were successfully prepared by hydrothermal and Stöber methods. The structure, morphology, and chromaticity of the synthesized pigments were characterized by XRD, SEM, TEM, FTIR, XPS, and colorimetry. The results indicated that the as-prepared pigments have the characteristics of narrow particle size distribution, high dispersion, and good sphericity. The α-Fe2O3@SiO2 reddish pigments were uniform and well dispersed in solution. In addition, the pigments with different shell thickness were also prepared, and the effect of shell thickness on the color performance of the pigments was discussed.

Keywords:

Fe2O3@SiO2 pigments, core-shell structure, monodispersed, spherical
Received: 21 March 2018 Revised: 03 June 2018 Accepted: 29 June 2018 Published: 13 March 2019 Issue date: March 2019
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Publication history
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Publication history

Received: 21 March 2018
Revised: 03 June 2018
Accepted: 29 June 2018
Published: 13 March 2019
Issue date: March 2019

Copyright

© The author(s) 2019

Acknowledgements

This work was financially supported by the Initiative Scientific Research Program from Jingdezheng Ceramic Institute and SRT Program (No. 1721T0264) from Tsinghua University.

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