Photocatalytic hydrogen production from aqueous methanol solution with CuO/Al2O3/TiO2 nanocomposite |
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| Authors: | Takuya Miwa Satoshi Kaneco Hideyuki Katsumata Tohru Suzuki Kiyohisa Ohta Suresh Chand Verma Kunihiro Sugihara |
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| Affiliation: | 1. Department of Chemistry for Materials, Faculty of Engineering, Mie University, Tsu, Mie 514-8507, Japan;2. Environmental Preservation Center, Mie University, Tsu, Mie 514-8507, Japan;3. Chubu Electric Power Co. Inc., Midori-ku, Nagoya 459-8522, Japan |
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| Abstract: | The photocatalytic hydrogen production from aqueous methanol solution was investigated with ZnO/TiO2, SnO/TiO2, CuO/TiO2, Al2O3/TiO2 and CuO/Al2O3/TiO2 nanocomposites. A mechanical mixing method, followed by the solid-state reaction at elevated temperature, was used for the preparation of nanocomposite photocatalyst. Among these nanocomposite photocatalysts, the maximal photocatalytic hydrogen production was observed with CuO/Al2O3/TiO2 nanocomposites. A variety of components of CuO/Al2O3/TiO2 photocatalysts were tested for the enhancement of H2 formation. The optimal component was 0.2 wt% CuO/0.3 wt% Al2O3/TiO2. The activity exhibited approximately tenfold enhancement at the optimum loading, compared with that with pure P-25 TiO2. Nano-sized TiO2 photocatalytic hydrogen technology has great potential for low-cost, environmentally friendly solar-hydrogen production to support the future hydrogen economy. |
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| Keywords: | TiO2 Photocatalytic hydrogen production Methanol CuO Al2O3 |
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