HYDROTHERMAL SYNTHESIS AND CHARACTERIZATION OF Co_(0.5)Zn_(0.5)Fe_2O_4 NANOMATERIAL AND EVALUATION OF ITS PHOTOCATALYTIC ACTIVITY UNDER VISIBLE-LIGHT IRRADIATION

摘要

Cobalt-zinc ferrite (Co_(0.5)Zn_(0.5)Fe_2O_4) nanophotocatalyst has been synthesized via hydrothermal technique. XRD and SEM were used for characterization to check the structure, morphology, and formation of nanoparticles. An UV-Vis photospectrometer was also used to check the optical properties of these nanoparticles. Photocatalytic activity of cobalt-zinc ferrite (Co_(0.5)Zn_(0.5)Fe_2O_4) nanophotocatalyst under visible-light irradiation was checked by the degradation rate of toluidine blue O (TBO). Moreover, under visible-light irradiation, enhanced photocatalytic activity was exhibited by Co_(0.5)Zn_(0.5)Fe_2O_4 nanophotocatalyst in the degradation of TBO. The degradation rate of TBO using Co_(0.5)Zn_(0.5)Fe_2O_4 nanophotocatalyst was 94.3% in 2 h. Meanwhile the properties like magnetic property and intrinsic chemical stability are the advantages possessed by these as-synthesized Co_(0.5)Zn_(0.5)Fe_2O_4 nanophotocatalysts, so it can be presumed that they could play an effective role in the field of industrial photodegradation of organic pollutants.