Mn-MOF Derived Mn2O3 Micromotors Applied to Removal of Methyl Blue in Water

A Mn-based metal. organic framework (Mn-MOF) was selected as the precursors to prepare the Mn-MOF derivative (Mn2O3) microspheres. The Mn2O3 microspheres had a homogenous size of ca. 4 mu m, with perfect sphere morphology, rough surface, good crystallinity and high yield. At the same time, the movement behavior of Mn2O3 micromotors under different conditions and the degradation properties of methyl blue (MB) were studied. As-prepared Mn2O3 micromotors had excellent autonomous movement ability, and their moving speed can reach 81.32 mu m.s(-1) in 10% H2O2 solution. Experimental results show that with the addition of H2O2, the Mn2O3 micromotors can effectively remove MB through degradation within 5 min.