Mesoporous g-C3N4 nanorods (NRs) are synthesized through the nano-confined
thermal condensation of cyanamide in silica nanotubes (NTs) with porous shells.
The gas bubbles retained during condensation and the limited cyanamide
precursor inside the silica NTs lead to the formation of mesoporous g-C3N4. This
nano-confined reaction is an alternative method to the traditional templating
process for the synthesis of mesoporous materials. The as-prepared mesoporous
g-C3N4 NRs exhibit remarkably improved photocatalytic activity and high
stability in water splitting and degradation of Rhodamine B compared with