Azadeh Moradzadeh - Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran.
Ali Reza Mahjoub - Department of Chemistry, Tarbiat Modares University, Box ۱۴۱۱۵-۱۱۱, Jalal Aleahmad, Tehran, Iran.
Mir Abdullah Seyd Sadjadi - Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran.
Moayad Hosaini Sadr - Department of Chemistry, Azarbaijan Shahid Madani University, Tabriz, Iran.
Nazanin Farhadyar - Department of Chemistry, Islamic Azad University, Varamin-Pishva, Iran.

Un-doped and Cd-doped ZnZrO۳/ZnO/ZrO۲ nano composites (CDZZ-NCPs) (CD۰-۴) were synthesized by the hydrothermal method. The nano composites were characterized by various techniques such as Fourier Transform Infra-Red spectroscopy (FT-IR), X-ray Diffraction (XRD), Field Emission Scanning Electron Microscopy (FE-SEM) and Energy Dispersive X-Ray Analysis (EDS). The photocatalytic properties of CDZZ-NCPs (CD۰-۴) were studied by degradation of congo red (CR) dye under sunlight irradiation. The results reveal unique sunlight photocatalytic ability for the degradation of CR. The experimental demonstrated that the ۰.۰۳ g of ZnZrO۳/ZnO/ZrO۲ nano composites can degradate ۵۰ mL of CR solution (۱۰ ppm) during ۵ minutes (up to ۹۱.۳%).

Congo Red, Nanocomposite Catalyst, Photocatalysis, Photocatalytic Degradation, Zirconium dioxide, Zinc Oxide, Zinc Zirconate