Semi-Organic Artificial Photosynthetic System with Engineered Phenoxazinone Derivatives for Photocatalytic Hydrogen Production with Broadened Near-Infrared Light Harvesting.

ABSTRACT: Natural photosynthetic systems utilize complex pigment-protein assemblies for light harvesting across a broad spectral range from UV to near-infrared, enabling efficient photogeneration and charge separation. Conventional photocatalysts, however, primarily absorb UV (<380 nm) and visible light (380-780 nm), resulting in suboptimal spectral utilization. This study introduces a semi-organic artificial photosynthetic system that integrates molecularly engineered phenoxazinone derivatives with H-doped rutile TiO₂ (H-TiO₂) nanorods. Bis(Triphenylamine)Phenoxazinone (BTP) features a phenoxazinone core with two triphenylamine donor groups, enabling light absorption up to 800 nm. Modifying BTP with an additional malononitrile group (MBTP) extends absorption into the NIR regio

SUBMITTER: Ruan X 

PROVIDER: S-EPMC12005748 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature