Document Type : Original Paper

Authors

• H. Ghasemi Mobtaker
• S.J. Ahmadi
• P. Ashtari

Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, Tehran, Islamic Republic of Iran

Abstract

TiO₂/Magnetit and TiO₂/Nd/Magnetit were prepared and used for photocatalytic decomposition of the methylorange as a pollutant. TiO₂ and TiO₂/Nd were prepared by sol gel method and were characterized using XRD, FT IR and TEM. The prepared catalysts were deposited on magnetite surface to have a catalyst with magnetite core. So the catalyst can be separated easily from the waste solution by a magnet. Comparing the photocatalytic activity of TiO₂/Magnetit and TiO₂/Nd/Magnetit showed that doping the TiO₂ by Nd increases the catalytic activity. Acidity of the waste has also promising effect on catalytic activity and the time needed for methylorange decomposition was decreased in low pHs. Complete decomposition of the methylorange was confirmed by LC MS.

Keywords

• TiO2/Magnetit
• TiO2/Nd/Magnetit
• Photocatalyst
• Sol gel
• Methylorange