Abstract
This work investigates the synthesis and application of nanocomposite electrode consisting of exfoliated graphite (EG) and titanium dioxide (TiO2) (EG/TiO2) for the photoelectrochemical degradation of organic pollutants in water. The EG/TiO2 composite electrode was prepared using Dendrimer as a binder and characterized with transmission electron microscopy, ultraviolet–visible diffuse reflectance, Brunauer-Emmett-Teller surface area analysis, scanning electron microscopy, energy dispersive spectroscopy, thermal gravimetric analyzer, X-ray diffractometry and X-ray photoelectron spectroscopy. XRD and Raman patterns of both the pure TiO2 and EG-TiO2 revealed Anatase phase of TiO2. The EG/TiO2 composite absorbed a noticeable amount of light in the entire visible light region compared to pure TiO2. The surface area and pore volume of pure TiO2 were observed to decrease after modification with the EG as a result of the interpenetration of the porous matrix of EG by the TiO2 nanoparticles. The EG/TiO2 photoanode was applied in the photoelectrochemical degradation of 0.1×10−4M methylene blue dye in 0.1M Na2SO4 under visible light irradiation. The photoelectrochemical degradation process resulted in enhanced degradation efficiency of 85% within 240min and was observed to be higher than that of photolysis and electrochemical oxidation processes.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
