Comparison of Photocatalytic efficiency of Magnetic and non-magnetic Ceria -Cs salt of Polyoxometalate Nanocomposites

Now a day, effluent of dyes recommends a challenge for environmental safety and daily operations of the industry [1]. There are many methods to remove the effects of pollutants which are included absorption techniques, reverse osmosis, electrochemical and photocatalytic [1]. Over the past decade, Metal oxides have wide range of applications in catalysis, environmental science and material science [2]. Ceria (CeO2) is one of the most significant rare earth metal oxide that has different applications in some fields [3]. Polyoxometalates are a kind of metal clusters, because of their various structures and unique properties. Newly, one of the most significant current discussions are easier separating and recycling of catalysts. Hence, the magnetic nanoparticles (NPs) have been attracting a lot of attention in chemical process (e.g., catalysis, photocatalysis, energy storage and etc.) [4]. Therefore, these NPs can play an important role for recycling and separating of magnetized catalysts by an external magnetic field. The aim of this research are comparison of magnetic and non- magnetic ceria/ Cs- salt of Polyoxometalate composites in order to investigation the efficiency of as-synthesis toward improving photocatalytic activities. The prepared magnetic ceria/ Cs- salt of Polyoxometalate composites displayed significantly enhanced photocatalytic activity toward CR degradation under 210 min visible light irradiation than others.