Preparation of F-Zn-Codoped TiO2 Nanoparticles and Its Applications in Photodegradation of Methylene Blue
Nano-F/Zn/TiO2 particles were prepared by sol-gel method using NH4F and Zn(NO3)2 as dopants. The photocatalytic degradation of methylene blue in aqueous solution as simulated wastewater was used to evaluate their photocatalytic activities. The powders were characterized by energy dispersion X-ray spectrum (EDS), X-ray diffraction (XRD) transmission electron microscopy (TEM) and Brunauer-Emmett-Teller (BET) surface area analysis. The results showed that F and Zn elements were doped into TiO2. The appropriate codoping amount for F and Zn were n(F)/n(TiO2)=2％ and n(Zn)/n(TiO2)=3％ respectively. The degradation rate of methylene blue at 1 h was improved from 73.2％ to 86.2％ by using F/Zn/TiO2 as photocatalyst.
nano-TiO2 codoped photocatalytic activity methylene blue
Fa-tang Li Rui-hong Liu Xue-yan Li Rong Yin
College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China
国际会议
青岛
英文
329-332
2009-10-09（万方平台首次上网日期，不代表论文的发表时间）