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Effects of diethanolamine on the evolution of silver/titanium dioxide sol–gel process

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Abstract

In order to clarify the effects of diethanolamine (DEA) in the silver (Ag)/titanium dioxide (TiO2) sol–gel process, sols with and without DEA, and films derived from these sols were prepared. The samples were investigated by X-ray diffraction, transmission electron microscopy, electron diffraction and optical absorption spectra. The results showed that metallic Ag clusters were formed in the sol with DEA and was absent in the sol without DEA. This indicated that DEA worked not only as the stabilizer but also as the reduce agent in Ag/TiO2 sol–gel process. After annealed, Ag metallic nanoparticles were generated in the films derived from both the sols with and without DEA. The particles in the films derived from the sol with DEA were smaller than those from the sol without DEA. This can be ascribed to the limitation of the growth of Ag cluster formed in the sol with DEA during heat treatment. Mechanisms for the formation of metallic Ag in the Ag/TiO2 sols and films were discussed. The effects of DEA in the sols and films were studied in detail.

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Abbreviations

DEA or deaH2 :

Diethanolamine

TEA:

Triethanolamine

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Acknowledgments

This work is supported by Zhejiang Research Department, under grant No. Y200909120.

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Authors and Affiliations

  1. State Key Laboratory of Silicon Materials and Department of Materials Science and Engineering, Zhejiang University, 310027, Hangzhou, People’s Republic of China

    Jing Zhou, Gaoling Zhao, Xiaoxiao Ren & Gaorong Han

  2. Department of Physics, Zhejiang University, 310027, Hangzhou, People’s Republic of China

    Bin Song

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  1. Jing Zhou
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  2. Gaoling Zhao
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  3. Xiaoxiao Ren
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  4. Bin Song
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  5. Gaorong Han
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Correspondence to Gaoling Zhao.

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Zhou, J., Zhao, G., Ren, X. et al. Effects of diethanolamine on the evolution of silver/titanium dioxide sol–gel process. J Sol-Gel Sci Technol 58, 148–155 (2011). https://doi.org/10.1007/s10971-010-2369-4

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  • DOI: https://doi.org/10.1007/s10971-010-2369-4

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