Manganese (III) meso-tetrakis(4-nitrophenyl) porphyrin sensitizes TiO₂ nanoparticles into visible region via a pyridyl linker for degradation of organic dyes.

ABSTRACT: Given the known central role of porphyrins in the photosynthesis, in this work, manganese (III) meso-tetrakis(4-nitrophenyl) porphyrin (MnTNPP) is used for the first time as a visible antenna for TiO₂ nanoparticles. The crystalline TiO₂ nanoparticles in pure anatase phase with high specific surface area (290 m²/g) were prepared from aqueous TiCl₃ precursor and citric acid. A pyridyl linker in surface-bound TiO₂ (SAPy), which forms a strong coordination bond with the Mn center of porphyrin complex (MnTNPP/SAPy@TiO₂), significantly enhanced photocatalytic activity. The photoactivity of the as-prepared hybrid was found to be approximately 6 and 4 times greater than that linker-free MnTNPP@TiO₂ toward the degradation

SUBMITTER: Rezaei M 

PROVIDER: S-EPMC12708877 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature