Nov 24, 2020 · Photocatalytic production of H 2 O 2 from the reduction of O 2 by semiconductor photocatalysts (e.g., graphitic carbon nitride, C 3 N 4) has been regarded as an alternative for small-scale decentralized H 2 O 2 production.

Oct 25, 2024 · Here we show a B-doped g-C3N4 (BCN) tailored with coordinatively unsaturated FeOOH and CoOx clusters for H2O2 photosynthesis from water and oxygen without sacrificial agents.

Aug 5, 2016 · Photocatalytic H 2 O 2 production at g-C 3 N 4 could be improved by as much as 14 times in the absence of organic scavenger through a carbon vacancy-based strategy. Carbon vacancy could narrow the band gap of g-C 3 N 4 to enhance its visible light absorption.

Aug 1, 2017 · Here we report on a new basis for clean energy storage, generating H 2 O 2 from H 2 O and O 2 by organic photocatalysis. In this study, we construct an all-solid-state Z-scheme heterojunction (PIx -NCN) by assembling perylene imides (PI) on g-C 3 N 4 nanosheets (NCN), where x is a percentage weight ratio of PI to NCN.

Mar 16, 2021 · A novel nitrogen-deficient g-C3N4 sample synthesized from cyanuric acid−melamine adducts with synergistically enhanced features was employed for photocatalytic H2O2 production as a sustainable alte...

Jun 3, 2024 · Artificial photosynthesis using carbon nitride (g-C3N4) holds a great promise for sustainable and cost-effective H2O2 production, but the high carrier recombination rate impedes its efficiency.

Jan 15, 2022 · In this work, the photocatalytic properties of g-C 3 N 4 for H 2 O 2 production was enhanced by co-modification with cyano group and SnO 2 nanocrystal through a facile one-step thermal polymerization method.

Mar 10, 2025 · In this study, a high-crystallinity boron-doped g-C3N4 (BCCN) was designed and applied for photocatalytic H2O2 synthesis. Photoelectrochemical experiments demonstrated that enhanced crystallinity reduces charge transfer resistance, while DFT calculations revealed that boron doping redistributes the HOMO and LUMO orbitals of g-C3N4.

Jul 9, 2024 · Results indicate that the introduced CeO2 enhances the transference of photogenerated electrons to O2 by adjusting the oxygen vacancy of photocatalyst, thereby increasing the generation of superoxide radicals, which in turn generate H2O2, resulting in a 22.4-fold increase in H2O2 generation over g-C3N4. Moreover, the in situ H2O2 generation ...

Oct 28, 2022 · However, the highly efficient and sustainable production of H2O2 remains a challenge. Herein, we demonstrated a state-of-the-art photocatalytic method for H2O2 production using an optimal tubular graphic carbon nitride (TCN)/ZnIn2S4 (ZIS) heterojunction.