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Synthesis and characterization of TiO2-incorporated silica foams

  • Mesostructured Materials
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Abstract

Titania-incorporated silica (TiO2–SiO2) porous materials have great applications in diverse areas. In this work, TiO2–SiO2 porous materials with tunable Si/Ti molar ratio (R) have been successfully prepared through a one-pot method under a near-neutral condition. With decreasing Si/Ti R, a phase transition from a macroporous foam-like structure to mesostructure is observed. The resultant TiO2–SiO2 porous materials possess large surface areas and high pore volumes. In addition, the titania species are homogenously dispersed in silica matrix when Si/Ti R ≥ 10. Our contribution provides a convenient method to synthesize TiO2/SiO2 porous materials with very large pore size, high pore volume, and relatively high titania content well dispersed in the silica wall framework.

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Acknowledgements

This work is supported by the State Key Research Program (2004CB217800), Science & Technology Commission of Shanghai Municipality (08DZ2270500), SLADP (B113), CNSF (20721063), Shanghai Science Committee (07QH14003), NCET, the Ministry of Education of China (20060246010), and the Australian Research Council.

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Authors and Affiliations

  1. Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, 200433, People’s Republic of China

    H. N. Wang, P. Yuan, L. Zhou & C. Z. Yu

  2. School of Engineering and Centre for Microscopy and Microanalysis, The University of Queensland, St Lucia, QLD 4072, Australia

    Y. N. Guo & J. Zou

  3. ARC Centre of Excellence for Functional Nanomaterials, School of Engineering and Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Australia

    A. M. Yu & G. Q. Lu

Authors
  1. H. N. Wang
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  2. P. Yuan
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  3. L. Zhou
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  4. Y. N. Guo
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  5. J. Zou
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  6. A. M. Yu
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  7. G. Q. Lu
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  8. C. Z. Yu
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Correspondence to G. Q. Lu or C. Z. Yu.

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Wang, H.N., Yuan, P., Zhou, L. et al. Synthesis and characterization of TiO2-incorporated silica foams. J Mater Sci 44, 6484–6489 (2009). https://doi.org/10.1007/s10853-009-3578-5

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  • DOI: https://doi.org/10.1007/s10853-009-3578-5

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