Author(s)

Ping Yang, Xiaoqian Huang, Xue Zhang, Pingxiong Cai

Corresponding Author

Pingxiong Cai

ABSTRACT

Because the water quality of industrial wastewater is complex and diverse, it is difficult to treat it, and it is difficult to effectively remove pollutants from industrial wastewater only by traditional water treatment methods. At present, nano-TiO2 photocatalytic technology, which has attracted much attention from researchers in materials and environment, can make up for the shortcomings of traditional water treatment methods and improve the treatment effect of industrial wastewater. TiO2 has high chemical stability, light corrosion resistance and deep valence band energy level. Some endothermic chemical reactions can occur and accelerate on the surface of TiO2 irradiated by light. When it is used in industrial wastewater treatment, it can make up for the shortcomings of traditional treatment methods such as coagulation, precipitation and filtration, and improve the treatment effect of industrial wastewater. Photocatalytic degradation of organic pollutants in the environment is a comprehensive experimental project. This paper introduces the principle and method of the design experiment of photocatalytic degradation of environmental organic pollutants by nano-TiO2, in order to strengthen the cultivation of students' scientific thinking and practical innovation ability.

KEYWORDS

TiO2, Photocatalysis, Experimental design