Synthesis,characterization, and photocatalytic properties of core/shell mesoporous silica nanospheres supporting nanocrystalline titania |
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| Authors: | K. Cendrowski X. Chen B. Zielinska R. J. Kalenczuk M. H. Rümmeli B. Büchner R. Klingeler E. Borowiak-Palen |
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| Affiliation: | 1.Centre of Knowledge Based Nanomaterials and Technologies, Institute of Chemical and Environment Engineering,West Pomeranian University of Technology,Szczecin,Poland;2.Leibniz Institute for Solid State and Materials Research Dresden,Dresden,Germany;3.Technische Universit?t Dresden,Dresden,Germany;4.Kichhoff-Institute for Physics,Heidelberg University,Heidelberg,Germany |
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| Abstract: | The facile bulk synthesis of silica nanospheres makes them an attractive support for the transport of chemical compounds such as nanocrystalline titanium dioxide. In this contribution we present a promising route for the synthesis of mesoporous silica nanospheres (m-SiO2) with diameter in range 200 nm, which are ideal supports for nanocrystalline titanium dioxide (TiO2). The detailed microscopic and spectroscopic characterizations of core/shell structure (m-SiO2/TiO2) were conducted. Moreover, the photocatalytic potential of the nanostructures was investigated via phenol decomposition and hydrogen generation. A clear enhancement of photoactivity in both reactions as compared to commercial TiO2-Degussa P25 catalyst is detected. |
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