Photocatalytic and antibacterial properties of TiO2 powder doped with Fe

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Weerachai Sangchay
Pichet Chantawee
Weerachai Madtharak
Aurasa Namesai
Salwa Torpee


The Fe doped TiO2 powders was synthesized by titanium (IV) isopropoxide, iron (III) nitrate nonahydrate, nitric acid and ethanol using sol-gel method. Follow by annealing at 500°C for 2 h in ambient with a heating rate of 10°C/min. The physical and chemical properties of synthesized powders were examined using XRD, SEM and BET. The photocatalytic performance was evaluated using means of degradation of methylene blue (MB) solution and antibacterial activity was investigated by the inactivation of Escherichia coli (E. coli) bacteria. The synthesized powders were anatase in phase with 10 to 100 µm of grain size according to the SEM images. The results from photocatalytic and antibacterial tests suggested that the performance TiO2 powder doped Fe was greater than pure TiO2. Furthemore, the 5 mol% Fe doping exhibited the highest photocatalytic on MB (59.3%) and antibacterial activity (94.2%) under UV irradiation.

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How to Cite
Sangchay, W., Chantawee, P., Madtharak, W., Namesai, A., & Torpee, S. (2014). Photocatalytic and antibacterial properties of TiO2 powder doped with Fe. Naresuan University Engineering Journal, 9(1), 10–14.
Research Paper