Facile synthesis of single-crystalline MnO2 nanowire arrays with high photothermal catalytic activity.

A simple process has been developed to form single-crystalline ß-MnO2 nanowire arrays (NWAs) with a large surface area of 125 m2 g-1 on a glass plate working as a highly active three dimensional (3D) photothermal catalyst under the illumination of near infrared light due to the efficient light harvesting and heat confinement near the reaction field in addition to the large surface area.