Boosting the Quantum Efficiency of Ionic Carbon Nitrides in Photocatalytic H₂O₂ Evolution via Controllable n → π* Electronic Transition Activation.

ABSTRACT: Hydrogen peroxide (H₂O₂) is a crucial chemical used in numerous industrial applications, yet its manufacturing relies on the energy-demanding anthraquinone process. Solar-driven synthesis of H₂O₂ is gaining traction as a promising research area, providing a sustainable method for its production. Herein, a controllable activation of n → π* electronic transition is presented to boost the photocatalytic H₂O₂ evolution in ionic carbon nitrides. This enhancement is achieved through the simultaneous introduction of structural distortions and defect sites (─C ≡ N groups and N vacancies) into the KPHI framework. The optimal catalyst (2%Ox-KPHI) reached an apparent quantum yield of 41% at 410 nm without the need for any cocatalysts,

SUBMITTER: Tong H 

PROVIDER: S-EPMC11619226 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature