Research On Electricity Production And The Efficiency Of The Degradation Of Carbamazepine Based On N,F Doped TiO₂NTs Anode Photocatalytic Fuel Cell

Carbamazepine as a frequent- use drugs, if not handled properly discharged into the water, not only caused serious environmental pollution and ecological destruction, but also affect people’s daily life and even threaten human health and safety. In this paper a new type of photocatalytic fuel cell using nitrogen and fluorine co-doped TiO₂ nanotubes as photoanode was designed to explore its electricity generation and degradation effects using Carbamazepine as its fuel. Summarized as the following points:1) Nitrogen and fluorine co-doped TiO₂ nanotubes was created by anodizing as photocatalytic fuel cell photoanode. The as-formed TiO₂ nanotubes was examined by scanning electron microscopy（SEM）, X-ray diffraction（XRD）, X-ray photoelectron spectroscopy（XPS）, UV-visible diffuse reflectance（UV-vis DRS） and photocatalytic effect. The results show that the length of the photoanode Ti O₂ nanotubes prepared at about 500 nm and about 100 nm in diameter with uniform orderly and strong direction. XRD results display that after calcination heating treatment photophotoanode appeared anatase TiO₂ with highly photocatalytic ability. Fluorine and nitrogen were successfully doped into photoanode and it can be seen in visible light photoanode has also been a response by UV-vis DRS. Methylene blue degradation rate reached nearly 60% under 2 hours UVA-LED irradiation.2) The study will, photocatalytic fuel cell was established using the obtain TiO₂ nanotubes as the light photoanode and its electrical properties was studied with Carbamazepine as fuel. Photocatalytic fuel cell can generate as high as 0.7V electromotive force（EMF）. The same concentration of substrate the max of EMF and power density and the light irradiation intensity was positively correlated with the same concentration of substrate. Battery internal resistance and light irradiation intensity was negative phase. Under the same conditions photocatalytic fuel cell electromotive force decrease after using proton exchange membrane. This is due to the proton exchange membrane between two electrodes blocking other ion conduction by allowing only H+ reducing the conductivity of the battery system. Since the nitrogen and fluorine doped into the photoanode, the photocatalytic fuel cell produces a response in the visible range and is not limited to the ultraviolet range. This improves the utilization of the solar spectrum and reduce the energy consumption.3) Electricity production and degradation effectiveness of photocatalytic fuel cell were analyzed with using Carbamazepine as its fuel. Photocatalytic fuel cell 1mg / L of Carbamazepine as a fuel, degradation effectiveness were Analyzed.