Effects on SPR of Au/TiO2 by preparation methods

doi:10.3969/j.issn.1000-1565.2020.04.008

Abstract

Abstract: The deposition of nano-gold particles on TiO₂ to produce Au/TiO₂ with surface plasmon resonance effect(SPR)is one of the important ways to improve the usage and quantum efficiency of TiO₂ photocatalyst for solar energy. In this paper, HAuCl₄·3H₂O and P25 nano-TiO₂ as raw materials, the effect of chemical reduction temperature on the SPR of gold sol was studied by UV-vis spectrophotometer; and the SPR difference of Au/TiO₂ prepared by chemical reduction thermal deposition method, chemical reduction photodeposition method and photoreduction deposition method were characterized by UV diffuse reflection. The results show that photoreduction deposition is an efficient, economical and environmentally friendly method for the preparation of high SPR Au/TiO₂.

Key words: Au/TiO₂, plasma resonance effect, photoreduction deposition, chemical reduction thermal deposition, chemical reduction photodeposition.

CLC Number:

JIA Qunpeng, MA Zhiling, HAN Bing, CHEN Chunxia, ZHANG Jixuan. Effects on SPR of Au/TiO₂ by preparation methods[J]. Journal of Hebei University (Natural Science Edition), 2020, 40(4): 385-391.

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Effects on SPR of Au/TiO₂ by preparation methods

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