Study of the Synthesis and Photocatalytic Properties of Iron-Doped Titania Nanocrystallines at Room Temperature

Abstract:

Iron-doped titania (TiO2) nanocrystalline were prepared by sol-gel method at room temperature. The samples were characterized by using transmission electron microscope, X-ray diffractometer and ultaviolet-visible spectrophotometer. X-ray diffraction shows that iron-doped titania have the titania anatase and brookite structure, and the more iron doped in, the less titania brookite structure. When the doping content of 10at% iron, the titania brookite structure disappear absolutely. Transmission electron microscopy shows that with the increase of iron-doping from 0.00 to 0.25, the average size of the grains decrease from 5.7nm to 4.3nm. And samples have higher crystallinity. Using UV-visible spectrophotometer to measure its photocatalytic properties the results show that it has the highest rate of 60% photocatalytic degradation when it is absorbed in methylorange in two hours. With the increase of iron-doping from 0.00 to 0.25, the more iron doped in, the higher photocatalytic properties.

• Periodical: Advanced Materials Research (Volumes 562-564)
• Pages: 255-259
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.562-564.255
• Online since: August 2012
• Authors: Zhi Hao Wei, Min Zhong, Yin Deng
• Keywords: Iron-Doped, Photocatalytic Properties, Sol-Gel (SG), Titania

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