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- Title
Effect of Al<sup>3+</sup> Doping on the Structure and Performance of FeVO<sub>4</sub> Photocatalytic Materials.
- Authors
ZHANG Shiqi; OU Xiaoxia; WANG Dongfang; YANG Xiaoyu; ZHAO Ke; ZHANG Chunhua
- Abstract
In order to further improve the photocatalytic activity of ferric vanadate (FeVO4), the amorphous Al3+/FeVO4 photocatalysts were prepared by hydrothermal method, and the prepared samples were characterized and analyzed by X-ray powder diffractometer (XRD), UV-vis diffuse reflectance spectrometer (DRS), Fourier transform infrared spectrometer (FT-IR), fluorescence spectrophotometer (PL) and transmission electron microscope (TEM). The effect of Al3+ doping on the photocatalytic activity of FeVO4 was investigated by photocatalytic degradation of methyl orange (MO) under simulated sunlight. The experimental results showed that the doped Al3+ enhanced the separation rate of photo electron-hole pairs by increasing the number of active sites, thus enhancing the photocatalytic activity of the materials. When the doping amount of Al3+ was 5%, the photocatalytic activity of this catalyst was optimal and the degradation efficiency of MO reached about 90% within 60 min, which was about 45% higher than that of pure FeVO4. Electrons (e-) played a dominant role in the overall photodegradation reaction system, with a contribution of about 72%.
- Publication
Environmental Science & Technology (10036504), 2020, Vol 43, Issue 12, p8
- ISSN
1003-6504
- Publication type
Article
- DOI
10.19672/j.cnki.1003-6504.2020.12.002