Mild aqueous synthesis of urchin-like MnOx hollow nanostructures and their properties for RhB degradation

Urchin-like MnOx (Mn3O4/MnO2) hollow nanostructures can be successfully synthesized by H2O2 oxidation of intermediate manganese carbonate (MnCO3) in basic aqueous solution. They had good degradation property for RhB under HCl stimulation. In our present system, degradation of RhB is not closely related to irradiation light. The degradation mechanism was discussed by combining cycled degradation results and different irradiation source stimulated degradation results.