Synthesis and Catalytic Activity of Magnetic Cryptomelane-Type Manganese Oxide Nanotubes

摘要

Magnetic cryptomelane-type manganese oxide (OMS-2) nanotubes were successfully prepared by grafting Fe _3O _4 nanoparticles onto the OMS-2 nanotubes. SEM and HRTEM images show that the prepared magnetic OMS-2 nanotubes exhibited diameters of 100 nm, lengths less than 3. 0 μm, and the diameters of the Fe _3O _4 nanoparticles are less than 10 nm. The synthesized material exhibits excellent magnetic separation and catalytic properties for the degradation of methylene blue (MB) by a Fenton-like reaction.