Synthesis, magnetic and optical properties and photocatalytic activity of the polyacrylamide decorated CaFe2O4 microspheres for photocatalytic degradation of organic wastewater

Abstract

The CaFe2O4 microspheres and polyacrylamide decorated CaFe2O4 microspheres synthesized by a novel sol gel method were applied to study the optical, magnetic properties and photocatalytic activity for photocatalytic degradation of the rhodamine B dye. The polyacrylamide decorated CaFe2O4 microspheres can be successfully prepared by a simple polymerization reaction. The polyacrylamide introduced to the CaFe2O4 microspheres obviously improve the optical and magnetic properties. Electrochemical measurement and photocatalytic experiment indicates that the polyacrylamide decorated CaFe2O4 microspheres exhibits a higher photocatalytic activity for degradation of the rhodamine B dye than the CaFe2O4 microspheres. The photocatalytic mechanism confirmed that the polyacrylamide play a critical role for prevent electron hole pair recombination.