A facile synthesis of flower-shaped TiO2/Ag microspheres and their application in photocatalysts
文献类型： 外文期刊
作者： Zhang, Li 1 ; Chen, Lei 2 ; Chen, Liangwei 1 ; Zhu, Guang 1 ;
作者机构： 1.Suzhou Univ, Anhui Key Lab Spin Electron & Nanomat, Suzhou 234000, Peoples R China
2.Anhui Acad Agr Sci, Inst Agroprod Proc, Hefei 230031, Peoples R China
期刊名称：RSC ADVANCES （ 影响因子：3.361； 五年影响因子：3.39 ）
ISSN：
年卷期：
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收录情况： SCI
摘要： Flower-shaped microspheres (FSMPs) TiO2 were successfully prepared using a sol-hydrothermal technique. A facile tyrosine-reducing method was adopted to reduce the Ag precursor to Ag nanoparticles (NPs) on the surface of the as-prepared TiO2 FSMPs. The morphology, structure and photocatalytic activity in the degradation of methylene blue (MB) of TiO2/Ag FSMPs were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, UV-vis absorption spectroscopy, Raman spectroscopy and X-ray photoelectron spectroscopy. The results show that the photocatalytic activity of the TiO2/Ag FSMPs is superior to that of TiO2 FSMPs and P25, which is attributed to the unique flower-shaped morphology with high surface area, the increased light absorption, and the reduction of photoelectron-hole pair recombination in TiO2 with the introduction of Ag NPs.
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