期刊
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
卷 31, 期 11, 页码 4372-4379出版社
SPRINGER
DOI: 10.1007/s10904-021-02033-x
关键词
Solvothermal; Hydrothermal; Nanotube; Nanoring; Gold; Titanium dioxide; Iron oxide; Photocatalyst
资金
- University of Taif, Saudia Arabia, Deanship of Scientific Research [1-439-6069]
The modified solvothermal reaction in this study successfully produced Au@TiO2/α-Fe2O3 nanocomposite with high crystallinity and nanoring-like structure. Photocatalytic experiments confirmed the efficacy of this ternary heterojunction in decomposing various pollutants.
In the present study, a modified solvothermal reaction of (hematite) with titanium(IV) butoxide and gold(III) chloride produced ternary Au@TiO2/alpha-Fe2O3 nanocomposite. The designed Au@TiO2/alpha-Fe2O3 photocatalyst exhibits nanoring-like structure with high crystallinity indicating the possibility of manufacturing extreme structures and offering a new nanostructure that was not previously studied. Both TiO2 and Au nanoparticles (NPs) were found to be dispersed uniformly on the alpha-Fe2O3 surface. X-ray diffraction powder technique combined with X-ray photoelectron (XPS) and Raman spectroscopy confirm the formation of the three materials with cubic Au, anatase TiO2 and hematite alpha-Fe2O3 structures, respectively. The photocatalytic activity proves the performance of this ternary heterojunction to decomposes different pollutants. It was found that, TiO2 absorbs UV-light, alpha-Fe2O3 absorbs both UV and Visible light and plasmonic gold NPs work as an electron mediator and therefore exhalt the photocatalytic efficiency of the ternary Au@TiO2/alpha-Fe2O3 photocatalyst. The present work delivers a novel perception to develop a stable photocatalyst based metal oxide/noble-metal hetero-nanostructure for the degradation of different types of pollutants in the industrial zones.
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