Carbon‐doped Titania Hollow Spheres with Tunable Hierarchical Macroporous Channels and Enhanced Visible Light‐induced Photocatalytic Activity

Titania, not just the wife of Oberon: Carbon-doped titania hollow spheres (THS) were prepared by using carbon spheres as both template and the source of carbon doping. The THS interconnect with each other through smaller pores to form hierarchical macroporous channel structure. Scale bar: 1 μm.