Fabrication, characterization and photocatalytic activity of cubic-like ZnMn2O4

► The cubic-like superstructure of ZnMn2O4 was successfully synthesized by a facile solvothermal method. ► The cubic-like ZnMn2O4 has a higher surface area of 138 m2 g−1 and monomodal pore size distributions. ► The band-gaps of the cubic-like ZnMn2O4 is found to be 1.3 eV. ► The synthesized cubic-like ZnMn2O4 exhibited excellent photocatalytic activity for rhodamine B under visible-light irradiation.