Pd-Gardenia-TiO2 as a photocatalyst for H2 evolution from pure water |
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| Authors: | Xiaoman WuQianqian Song Lishan Jia Qingbiao Li Chao YangLiqin Lin |
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| Affiliation: | a Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People’s Republic of China
b Key Laboratory for Chemical Biology of Fujian Province, Xiamen University, Xiamen 361005, People’s Republic of China |
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| Abstract: | The photocatalytic activity for H2 evolution from pure water over Pd loaded TiO2 prepared by gardenia extract (Pd-Gardenia-TiO2) is systematically investigated. The as-prepared photocatalysts are characterized by X-ray diffraction, high resolution transmission electron microscopy, Fourier transform infrared spectra, and X-ray photoelectron spectroscopy. Gardenia extract functions as reducing and stabilizing agents simultaneously. The mean size of the as-prepared Pd nanoparticles is in the range of 2.3 ± 0.5 nm based on TEM images. The Pd-Gardenia-TiO2 catalyst exhibits good photocatalytic activity for H2 evolution (93 μmol · h−1 · g−1), which is much higher than that of Pd photodeposited on TiO2. Possible factors for its photocatalytic activity from pure water are also investigated. |
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| Keywords: | Hydrogen evolution Gardenia Pd-TiO2 Photocatalysis |
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