期刊
JOURNAL OF ENVIRONMENTAL SCIENCES
卷 60, 期 -, 页码 61-69出版社
SCIENCE PRESS
DOI: 10.1016/j.jes.2017.06.041
关键词
TiO2; Zr; Photocatalyst; Formaldehyde; Glass fiber
资金
- Project of Science and Technology Department of Jiangsu Province [BE2016769]
- Natural Science Foundation of China [51608261]
- Six talent peaks project in Jiangsu Province
- Open fund by Jiangsu Engineering Technology Research Center of Environmental Cleaning Materials [KFK1503]
- A Project - Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
Zr-doped-TiO2 loaded glass fiber (ZT/GF) composite photocatalysts with different Zr/Ti ratios were prepared with a sol-gel process. Zr4+ can replace Ti4+ in the TiO2 lattice, which is conducive to forming the anatase phase and reducing the calcination temperature. The glass fiber carrier was responsible for better dispersion and loading of Zr-doped-TiO2 particles, improving the applicability of the Zr-doped-TiO2. The ZT/GF photocatalysts were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FT-IR), ultraviolet-visible spectroscopy (UV-vis) and Barrett-Joyner-Halenda (BJH). The performance of photocatalysts with different loading was evaluated in formaldehyde degradation under visible light at room temperature. ZT/GF0.2 exhibited the highest activity, with a formaldehyde removal rate as high as 95.14% being observed, which is better than that of the photocatalyst particles alone. The stability of the catalyst was also tested, and ZT/GF exhibited excellent catalytic performance with 94.38% removal efficiency, even after seven uses. (C) 2017 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
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