Facile synthesis of hematite nanostructures with controlled hollowness and porosity and their comparative photocatalytic activities.

Hematite nanostructures with similar spindle-like shapes but different hollowness and porosities have been prepared by a facile hydrothermal method. The comparative photocatalytic activities of these samples were investigated and the results might be helpful to further understand the beneficial effects of hollow and porous structures. [ABSTRACT FROM AUTHOR]