Abstract
In this study, TiO2-zeolite modified carbon nanotubes-epoxy (TiO2-Z-CNT-Epoxy) and TiO2-zeolite modified carbon nanofibersepoxy
(TiO2-Z-CNF-Epoxy) composite electrodes were applied for pentachlorophenol (PCP) degradation and determination in
aqueous solution. The morpho-structural characterization of the composite electrodes was studied by scanning electron
microscopy. The electrochemical behaviour of the electrodes was investigated under UV irradiation presence/absence, using
cyclic voltammetry (CV) in 0.1 M sodium sulphate solution supporting electrolyte. The electrooxidation and
photoelectrooxidation process under potentiostatic conditions were carried out using chronoamperometry (CA). A synergy effect
at 1.5 V applied potential was observed for photoelectrochemical process in comparison with each electrochemical and
photocatalytic one. The optimum operation conditions in relation with electrode type, and applied potential were established.