Synergistic Defect and Hole Engineering in K–Doped Cyano–Rich Porous Graphitic Carbon Nitride to Boost Photocatalytic Hydrogen Peroxide Production

Photocatalytic conversion of H₂O and O₂ into H₂O₂ provides a promising sustainable ambient-condition route alternative to energy-intensive anthraquinone processes for on-site H₂O₂ production. Herein a series of K-doped cyano-rich g-C₃N₄ with porous structure (g-PC₃N₄K) have been successful synthesized by a molten salt assisted pyrolysis with subsequent secondary pyrolysis under the assis