Preparation of N,F-codoped TiO2 nanoparticles by three different methods and comparison of visible-light photocatalytic performances
作者： Qing Guo , Zhaohong Zhang , Xiping Ma , Kui Jing , Manli Shen
DOI: 10.1016/J.SEPPUR.2016.11.041
关键词: Nanoparticle 、 Materials science 、 Fluorine 、 Dispersion (chemistry) 、 Hydrofluoric acid 、 Photocatalysis 、 Nanotechnology 、 Degradation (geology) 、 Visible spectrum 、 Anatase 、 Nuclear chemistry
摘要: Abstract In this work, three types of N,F-codoped TiO2 nanoparticles (N,F-TiO2) were synthesized using modified sol-gel methods, and applied in degradation acid red B (AR B), as a target pollutant solution. The extents the investigated to compare photocatalytic activities prepared photocatalysts. results show that anatase N,F-TiO2 can be obtained methods with significantly enhanced extents. rate under visible light alone is very slow, N,F-TiO2(1) by different adding sequence nitrogen fluorine sources, exhibits higher effect. Also, crystallite sizes dispersion particles, doped dose, treatment temperature have significant effects on activity. Moreover, more OH radicals are generated light, presence than those N,F-TiO2(2) double sol method, N,F-TiO2(3) direct method. Therefore, work suggests preparation hydrofluoric sources ammonia water promising, promising photocatalyst applications dealing dye wastewater solar light.
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