Open AccessNovel approach to enhance light absorption of porphyrin/graphene oxide composites by PH and concentration modification for energy applications
Author(s) -
Omar Bajjou,
Anass Bakour,
Mohammed Khenfouch,
Mimouna Baïtoul,
B.M. Mothudi,
Malik Maaza,
Eric Faulques
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1292/1/012017
Subject(s) - graphene , porphyrin , oxide , materials science , surface modification , intercalation (chemistry) , scanning electron microscope , absorption (acoustics) , nanorod , dispersion (optics) , spectroscopy , chemical engineering , nanotechnology , photochemistry , composite material , chemistry , optics , inorganic chemistry , physics , quantum mechanics , engineering , metallurgy
Graphene oxide (GO) decorated with nanostructured porphyrin (PN) was synthesized and the interfacial interaction between these two components were investigated by using Scanning electron microscopy (SEM), X-ray, and UV-Visible absorption spectroscopy. These techniques showed good dispersion of GO and PN as well as a π-π intermolecular interaction confirming the energy/charge transfer. Moreover, X-ray diffraction study confirmed the intercalation of PN in GO and their disaggregation. The UV-Visible results showed an important interaction between GO and porphyrin nanorods under different pH values and concentrations resulting in the enhancement of optical absorption of GO-PN. The findings presented here are important to achieve the functionalization of graphene oxide with PN for various optoelectronic applications.