Leila Shirmohammadzadeh - Department of Chemistry, Faculty of Science, University of Guilan, Guilan, Iran
Hadi Fallah Moafi - Department of Chemistry, Faculty of Science, University of Guilan, Guilan, Iran
Abdollah Fallah Shojaei - Department of Chemistry, Faculty of Science, University of Guilan, Guilan, Iran

Magnisum zirconate forms the perovskite structure and possesses excellent mechanical, optical and electrical properties. The properties of MgZrO3 (MZ) depend on the synthesis method employed. The most common method for powder synthesis is the solid mixing technique. Although the method is simple and inexpensive, wet chemical methods like sol-gel, hydrothermal routes and co-precipitation can improve cation homogeneity and reduce the temperatures required for phase formation. These methods also help produce more surface active powders that sinter better and thus produce higher density ceramics [1-2]. An aqueous solution of barium and zirconium was obtained by mixing 0.40 g BaCl2.2H2O and 0.53 g ZrOCl2.8H2O in deionized water. Then, a solution of NaOH added to them. Then powder calcination at 400°C for 2h. Ceramic was characterized by FT-IR, UV-vis spectroscopy and X-ray diffraction (XRD). XRD analysis reveal pure perovskite phase structure.Parameters such as concentration of substrate, amount of photocatalyst, pH of the solution, temperature of reaction medium and time of irradiation of light for photocatalysis degradation of methylene blue (MB) and Eosin Y (EY) were investigated. When the pH increased to 10, the photodegradation of MB increased to 10% at the end of 30 min and when the pH decreased to 3, the photodegradation of EY increased to 92% at the end of 30 min.