期刊
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
卷 129, 期 -, 页码 329-339出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jpcs.2019.01.036
关键词
Photocatalysis; Photoluminescence; Microstructure; Spectroscopic property; TiO2
资金
- University Grant Commission [F.2-44/2011(SA-1)]
- Council of Scientific & Industrial Research, Government of India [09/080(0791)/2011-EMR-I]
In this study, titania hollow microspheres were prepared via sol-gel process followed by autoclaving at 180 degrees C for 20 h using titanium (IV) oxysulfate and ammonium fluoride. Different amounts of Au in a water-dispersible sol obtained from carambola fruit extract at room temperature were incorporated into the synthesized TiO2 to prepare Au/TiO2 nanocomposite. The physicochemical properties of the synthesized products were studied by X-ray diffraction, Fourier transform infrared spectroscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, N(2 )adsorption-desorption analysis, ultraviolet-diffuse reflectance spectroscopy, photoluminescence spectroscopy, field emission scanning electron microscopy, and transmission electron microscopy. The prepared Au/TiO2 nanocomposite was applied to study the photocatalytic degradation of phenol (a toxic organic pollutant) under irradiation by visible light. The Au/TiO2 nanocomposite containing 5 wt% Au had the smallest band gap energy of 2.24 eV and the maximum photocatalytic efficiency (95%), where it decomposed 97.5% of the organic pollutant after irradiation by visible light for 1 h.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据