One dimensional titanate nanostructures is intensively investigated because of their physical and chemical properties, for instance, photocatalysis devices, nanocomposites and energy storage. Recent research of titanates opens up opportunities to confine secondary materials which provide an interesting route to tune up catalytic properties and performance. Here, Au-doped titanate nanotubes (TiNT) were prepared via ex situ and in situ method under microwave irradiation. In the applied in situ method, TiNT were grown from anatase TiO2 doped with Au3+ while in the ex situ method, sodium titanates were exposed to Au3+ aqueous solution. Au3+ were formed inner/outer surfaces of the nanotubes but the distribution is found more homogeneous for in situ doping method.The prepared photocatalyst effectiveness was tested for treatment of an endocrine disrupting compound (diclofenac) in water under UV irradiation. It was observed that Au3+ doped nanotube has a very good adsorption ability as well can exhibit higher photocatalytic performance.

Microwave-assisted Au doped nanotube preparation for degradation of organic compounds in water

244th National Meeting (2012)

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