An efficient hybrid photoanode based on the anodic TiO2 layer covered with gold nanoparticles (AuNPs) and BODIPY
(boradiazaindacene)
microrods for solar-driven water splitting experiments was developed.
The BODIPY derivative (B-1) was synthesized, and their stability in
different solvents was characterized in order to prepare the heterojunction
photoelectrode. An insight into materials’ properties was gained
by evaluating their morphology, optical, semiconducting, and photoelectrochemical
performance. By combining the unique morphology of anodic TiO2 nanotubes with the electron trapping abilities of AuNPs and
the light absorption properties of the BODIPY dye, a novel heterojunction
photoanode generating 15 times higher photocurrent (∼120 μA
cm–2) than pristine anodic TiO2 (∼8
μA cm–2) was obtained.
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