Investigation of the synergistic effect of porphyrin photosensitizer on graphene–TiO2 nanocomposite for visible light photoactivity improvement
作者： Rahmatollah Rahimi , Solmaz Zargari , Ali Ghaffarinejad , Ali Morsali
DOI: 10.1002/EP.12267
关键词: Photocurrent 、 Photocatalysis 、 Methyl orange 、 Visible spectrum 、 Porphyrin 、 Nanocomposite 、 Photodegradation 、 Photosensitizer 、 Photochemistry 、 Materials science
摘要: To use the visible light in photodegradation reactions efficiently, graphene–TiO2 nanocomposite was photosensitized using tetrakis(4-carboxyphenyl)porphyrin. investigate effect of graphene as well dye sensitization on photoactivity synthesized photocatalyst, photocatalytic properties and photocurrent responses prepared samples were examined under irradiation. A twofold increase response TG with porphyrin (TGP) compared to (3%) provides an evidence effective influence photosensitizer enhancement. There is a complete correspondence between activity photocatalysts. The photocatalysts carried out degradation methyl orange bisphenol It determined that TGP compound stable after process degraded 93% 85% 240 min Furthermore, mechanism investigation determines O2.− OH. are main reactive species for over © 2015 American Institute Chemical Engineers Environ Prog,
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