Abstract
The solid solution of CaTi1−x Zr x O3 (x = 0–0.15) was successfully synthesized by the polymerized complex (PC) method. This study has exhibited the advantage of the PC method to prepare a highly active CaTiO3 compared with the conventional solid-state reaction (SSR) method. More importantly, further improvement in phase purity and large surface area was achieved by the doping of Zr4+, leading to remarkable enhancement of photocatalytic activities compared to pure CaTiO3. The quantum yield for H2 evolution over the most active photocatalyst, Pt (1.0 wt%)/CaTi0.93Zr0.07O3, was 1.91% and 13.3% in photoreactions from pure water and aqueous ethanol solution, respectively for 0.1 g photocatalyst, which was about 3.3 and 2.5 times compared to that of PC-derived CaTiO3.
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Acknowledgments
The work was financially supported by the National Basic Research Program of China (973 Program) (No. 2003CB214500), National High Technology Research and Development Program of China (863 Program) (No. 2006AA03Z223), Specialized Research Fund for the Doctoral Program of Higher Education of China (No. 20030003069) and “Solar Hydrogen” Project sponsored by Shell Hydrogen.
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Sun, W., Zhang, S., Wang, C. et al. Enhanced Photocatalytic Hydrogen Evolution Over CaTi1−x Zr x O3 Composites Synthesized by Polymerized Complex Method. Catal Lett 119, 148–153 (2007). https://doi.org/10.1007/s10562-007-9212-8
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DOI: https://doi.org/10.1007/s10562-007-9212-8