Citation:
SHI Jianjian, LIU Xiaoming, TANG Xinghua, LI Shuailong. Synthesis and Properties of Nano Gold-Zinc Titanate Composite as a Novel Visible-light Plasmonic Photocatalysts for Solar Hydrogen Evolution[J]. Chinese Journal of Applied Chemistry,
;2016, 33(5): 583-590.
doi:
10.11944/j.issn.1000-0518.2016.05.160123
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Nano gold-zinc titanate(Nano Au-ZnTiO3) composite plasmonic photocatalyst were prepared by a sol-gel process and photodeposition method. The obtained samples were characterized by powder X-ray diffraction(XRD), field emission scanning electron microscopy(FE-SEM), UV-Vis diffuse reflectance spectra, fluorescence spectra, photocurrent density and photocatalytic hydrogen production activity. The results indicate that ZnTiO3 sintered at 900 ℃ shows a mixed phase composed of cubic and hexagonal with a approximately spherical morphology in the size range of 50~100 nm. An intense absorption band centered at 525 nm of Nano Au-ZnTiO3 can be observed in visible light region due to the surface plasma resonance effect of Au nanoparticles. Under the irradiation of visible light, the Nano Au-ZnTiO3 plasmonic photocatalyst shows excellent photocatalytic activity in hydrogen evolution from water splitting.
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