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- Title
Photocatalytic degradation of methyl orange on arrayed porous iron-doped anatase TiO.
- Authors
Lei, Jianfei; Li, Xiaoping; Li, Weishan; Sun, Fengqiang; Lu, Dongsheng; Lin, Yuli
- Abstract
Arrayed porous iron-doped TiO was prepared by sol-gel with polystyrene spheres as template and used as photocatalyst for the degradation of methyl orange. The structure and performances of the prepared photocatalyst were characterized with X-ray diffractometer, inductively coupled plasma-atomic emission spectrometer, scanning electron microscope, UV-visible spectrometer, and methyl orange degradation tests. It is found that the iron dopant does not change the crystal phase of TiO but affects its lattice constant, optical absorption, electronic conductivity, charge-transfer resistance, and activity toward the degradation of methyl orange. The sample doped with 0.01 wt.% Fe (based on Ti) and with smaller pore size exhibits the better photocatalytic activity. The degradation rate of methyl orange on the sample with a pore size of 190 nm is 2.3 times that on the undoped sample with the same pore size.
- Subjects
SOL-gel processes; POLYSTYRENE; METHYL ether; X-ray diffraction; X-ray diffractometers
- Publication
Journal of Solid State Electrochemistry, 2012, Vol 16, Issue 2, p625
- ISSN
1432-8488
- Publication type
Article
- DOI
10.1007/s10008-011-1388-6