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The YMnO 3 , NiO, and NiO/YMnO 3  nanocomposites are successfully prepared by a polyacrylamide gel method and a simple two phase recombination route. The phase structure, surface morphology, optical, magnetic and electrochemical properties and photocatalytic activity of as-prepared samples were measured by X-ray diffraction (XRD), Scanning electron microscope (SEM), UV-visible spectrophotometer, superconducting quantum interference device (SQUID), electrochemical workstation and 721 spectrophotometer. Phase structure analysis indicate that the YMnO 3 , NiO, and NiO/YMnO 3  nanocomposites has good crystallization and no other impurities. The NiO supported YMnO 3  composites improved the surface morphology, optical, magnetic and electrochemical properties and photocatalytic activity of YMnO 3  nanoparticles significantly. Photocatalytic experiment analysis indicate that the NiO supported YMnO 3  composites exhibits highest photocatalytic activity for degradation of the methyl red dye with dye concentration of 25 mg/L. The excellent photocatalytic activity for the NiO supported YMnO 3  composites can be ascribed to the fast interfacial charge transfer, high effective charge separation and the  ⋅ OH radicals.

Synthesized and Photocatalytic Mechanism of the NiO Supported YMnO 3 Nanoparticles for Photocatalytic Degradation of the Methyl Orange Dye