Facile Synthesis of Monodisperse Pt Nanoparticles on Graphitic Carbon Nitride for High‐Performance Photocatalytic H2 evolution

Abstract Graphitic carbon nitride decorated with appropriate co‐catalysts has attracted widespread attention owing to its excellent photocatalytic H 2 evolution activity. Herein, monodisperse Pt nanoparticles are synthesized by a facile method and anchored on graphitic carbon nitride (PCN) via self‐assembly route. Among the different Pt content, the 3 % Pt‐loaded PCN (Pt/PCN 3 ) hybrid reveals highest photocatalytic activity for water splitting with the H 2 evolution rate of 2.02 mmol g −1 h −1 , about 4 times higher than that of Pt‐PCN by traditional photo‐deposition way. This work provides a new strategy for constructing high‐performance Pt‐based co‐catalysts on PCN to boost its photocatalytic activity.