ZnO has been extensively applied in optoelectronic devices, sensor, energy materials and many other very important areas. ZnO is another most investigated photocatalyst (in addition to titanium dioxide). In order to enhance the photo and electronic performances of ZnO, various metals have been doped into ZnO. Gallium (Ga) as a dopant has recently received a great attention. However, most reported works on Ga doped ZnO were for ZnO thin films or ZnO nano wires. Few works can be found in the literature with Ga doped ZnO powders or particles. In this work, Ga doped ZnO photocatalysts were reported, for the first time, according to the knowledge of the authors. The prepared Ga doped ZnO photocatalysts show significantly enhanced activity for degradation of methyl orange under the solar irradiation. The Ga doped ZnO nanoparticles must be also very promising for many other applications (like the conversion of carbon dioxide under the solar irradiation).

Preparation and characterization of Ga-doped ZnO photocatalysts

243rd National Meeting (2012)

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