To Study the Effect of the Concentration of Carbon on Ultraviolet and Visible Light Photo Catalytic Activity and Characterization of Carbon Doped TiO2

Rajkumar R Nisha Singh

doi:10.4172/2157-7439.1000260

Abstract

Photo catalytic degradation of pollutants in water or air using titanium dioxide has been considered one of the efficient methods but it shows poor absorption of visible light and requires ultraviolet light for its activation. Which increase the cost of system, So that we moved toward the doping of non-metal in TiO2 which gave good result in visible and UV light, carbon doped TiO2 is prepared using air heating method at lowest temperature and minimum time by taking glucose and ethanol as carbon source. The experimental results showed that carbon was successfully doped into TiO2 .The physical properties of carbon doped TiO2 were studies by XRD, TG-TGA and UV spectroscopy which showed that the photo catalytic efficiency increase in UV and visible lights by creation of oxygen vacancies and Ti3+ in C-TiO2 catalyst. UV spectroscopy results showed the optical response of TiO2 was shifted from UV to the visible light region.

Highlights

Semiconductor titanium dioxide (TiO2) is a promising photocatalyst for air purification, water disinfection, hazardous waste remediation and water purification [1]
The pattern of undoped TiO2 showed the presence of anatase and bookie only anatase is present in the X-ray powder diffraction (XRD) pattern of C-doped TiO2 indicate the doping of carbon prohibit the formation of brookite
The crystal size decrease can be attributed to dissimilar boundaries created by carbon doping, because of the significant decrease on the intensity of XRD pattern of TiO2

Summary

Introduction

Semiconductor titanium dioxide (TiO2) is a promising photocatalyst for air purification, water disinfection, hazardous waste remediation and water purification [1]. It is found that the resulting carbon-doped TiO2 by this new method exhibits much higher photo catalytic activity than the undoped counterpart and Degussa P25 on the degradation of phenol under visible and UV light.

Results

Conclusion