Dual-porosity MnO cubes for highly efficient dye adsorption.

Dual-porosity materials containing both macropores and mesopores are highly desired in many fields. In this work, we prepared dual-porosity MnO cube materials with large-pore mesopores, in which, macropores are made by using carbon spheres as the hard templates, while the mesopores are produced via a template-free route. The attained dual-porosity MnO materials have 24nm of large-pore mesopores and 700nm of macropores.