Kinetic study of photocatalytic degradation of Reactive Black 5

Abstract

The wastewater discharged from industries consist several of harmful chemicals. These chemicals will affect the water resource and it is necessary to maintaining the water quality. Photocatalysis is highly effective and economical process because it can complete the mineralization of the pollutants, only involving UV or solar light, and operate near room temperature have become the advantages of this process. Despites of all the advantages of this photocatalyst, titanium dioxide is capable to act as sensitizer for light which will reduce the redox process due to their electronic structure. The best part is that the titanium dioxide can be chemically activated by light, thus in the industry, self-cleaning for the building often used titanium dioxide which helps the cleaning process become easier. Nitrogen and magnesium will be used as dopants because doping of TiO2 generally found will enhance the photocatalytic activity of the catalyst. Hence, this study is significant in order to improve the present method of photocatalysis in treating the wastewater treatment. In effort to find the viable and reliable ways for wastewater treatment, it is necessary to conduct research and study on this issue.