Surfactants Effect on the Photoactivity of Fe-doped TiO2
(0) Ti(OC4H9)4 was used as the Ti precursor and titanium dioxide (TiO2) was prepared by sol-gel method.During the preparation process,Fe3+ was doped and different surfactants,such as SDS,PEG,CTAB,were added to improve the photocatalytic activity of TiO2.The effect of the different type of surfactants on the structure of Fe-doped TiO2 was discussed.The photocatalysts were characterized by thermogravimetric thermal analysis,X-ray diffraction,scanning electron microscopy and UV-Vis spectrophotometer.The red shift of the absorption edge of the Fe-doped TiO2 prepared by using different surfactants was observed.Methyl orange (MO) solution was degraded under sunlight irradiation to evaluate the photocatalytic performance.The results indicated that the photocatalyst prepared with PEG addition had the highest activity and MO degradation ratio could reach 90% after 4 hours irradiation with the best photocatalyst.
Sol-gel Iron-doped titania Photocatalytic activity Surfactant
Qingyun Chen Chao Xue Xianglin Li Yunhai Wang
State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiao tong University, 28 WestXianning Road, Xi’an City, Shanxi Province 710049, China
国际会议
the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))
太原
英文
367-371
2012-07-13（万方平台首次上网日期，不代表论文的发表时间）