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- W4283326997 abstract "Abstract BACKGROUND Graphitic carbon nitride (g‐C 3 N 4 ) has attracted extensive attention as a typical photocatalyst. However, g‐C 3 N 4 still needs to be modified to obtain enhanced hydrogen production activity. RESULTS Here, SnO 2 /g‐C 3 N 4 composites were prepared by a facile one‐pot pyrolysis method, and showed enhanced visible‐light‐driven photocatalytic H 2 production activities with the highest value of 241 μmol h −1 g −1 , which was about four times that of pure polymeric g‐C 3 N 4 . The facile one‐pot pyrolysis method not only promoted effective coupling between g‐C 3 N 4 and SnO 2 , but also adjusted the photocatalytic performance‐related physicochemical properties of polymeric g‐C 3 N 4 . The reduction of particle sizes of g‐C 3 N 4 promoted the migration of photogenerated carriers to the surface and the introduction of SnO 2 as electron transport material promoted the transfer of photogenerated charge carriers from g‐C 3 N 4 host photocatalyst to metallic Pt cocatalyst, synergistically restraining the recombination of photogenerated carriers. Moreover, the increased specific surface areas and pore volumes enriched the reactive sites and facilitated the mass transfer of reactants, thus accelerating the redox reactions. Furthermore, the enhanced light absorption promoted the generation of photogenerated carriers which was beneficial for photocatalytic reactions. CONCLUSIONS This work provides an effective reference for the application of Sn species in the modification of photocatalysts, especially polymeric g‐C 3 N 4 . © 2022 Society of Chemical Industry." @default.
- W4283326997 created "2022-06-24" @default.
- W4283326997 creator A5005741793 @default.
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- W4283326997 creator A5054835425 @default.
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- W4283326997 date "2022-07-24" @default.
- W4283326997 modified "2023-10-16" @default.
- W4283326997 title "Facile one‐pot pyrolysis preparation of <scp> SnO <sub>2</sub> </scp> / <scp> g‐C <sub>3</sub> N <sub>4</sub> </scp> composites for improved photocatalytic <scp> H <sub>2</sub> </scp> production" @default.
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