Preparation and Photocatalytic Properties of Fe-Doped TiO2 Nanocrystalline Composite Particles

Hai Da Liao; Jin Lie Ma; Jian Dai

doi:10.4028/www.scientific.net/AMR.105-106.815

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Preparation and Photocatalytic Properties of Fe-Doped TiO₂ Nanocrystalline Composite Particles

Abstract:

Metatitanic acid was adopted as the raw material to prepare Fe-doped TiO2 nanocrystalline composite particles using suspension polymerization and sol-gel method, which were then characterized with XRD, TEM, TG-DTA and IR, etc.. The results showed the samples were nanocrystal accumulated porous particles, with average particle size of 29nm. Through doping of Fe3+ ion, the photo catalytic activities of particles under Xe lamp were investigated by photodegrading the methyl orange. It was found that, the TiO2 nanocrystal doped with 0.5% Fe3+ ion (accounted as mass fraction) had the highest catalytic activity. The Fe-doped TiO2 nanocrystalline composite particles prepared in this study has high activity, is easy for separation, recovery and reuse.