Abstract
AbstractA facile strategy to synthesize porous graphitic carbon nitride with stacking nanotubes by thermal condensation of melamine–ammonium oxalate stacking sheets is reported. The photocatalytic generation rate of hydrogen over the porous graphitic carbon nitride (99.7 μmol h−1) is nearly 9.5 times as that of pristine g‐C3N4 (10.5 μmol h−1). Such enhancement is attributed to the large specific surface area (91.1 m2 g−1), improved visible‐light absorption and efficient separation of photogenerated electrons and holes. The strategy of preparing the porous graphitic carbon nitride with modified melamine as a precursor opens a new gate for the regulation of the morphologies of g‐C3N4 to get higher photocatalytic activity.
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