In situ synthesis of rice-like ZnGa2O4 for the photocatalytic removal of organic and inorganic pollutants

Rice-like HT-ZnGa 2 O 4 were successfully synthesized by using commercially available Ga 2 O 3 as an in situ sacrificial templates. The composition, morphology and microstructure of rice-like HT-ZnGa 2 O 4 were characterized in detail. Rice-like HT-ZnGa 2 O 4 were found to be composed of hundreds of nanoparticles . The pH-dependent experiment results indicated that the dispersive rice-like HT-ZnGa 2 O 4 was obtained at pH 8.0. The photocatalytic degradation results showed that the rice-like HT-ZnGa 2 O 4 exhibited high photocatalytic activity and excellent stability for the photocatalytic removal of organic and inorganic pollutants in solution. Finally, the mechanism involved in the photocatalytic process have been investigated by theory and experiment analyses.