Ozone has been widely used as a strong oxidant and disinfectant. However, ozone is also a toxic substance. Ozone that cannot be fully utilized is discharged into the environment in the form of tail gas, causing secondary pollution, which will pose a hazard to the human environment. Therefore, there is a huge market demand for a new technology and corresponding materials that can quickly catalyze ozone decomposition at room temperature. At present, the main methods for treating ozone tail gas include activated carbon adsorption method, thermal decomposition method, electromagnetic wave radiation method, chemical liquid absorption method and catalytic decomposition method. Among them, catalytic decomposition method is an ideal method. The catalysts currently used in catalytic decomposition method can be roughly divided into three types: manganese system, transition metal system and precious metal system. However, most of these catalysts have problems such as poor moisture resistance and failure of carriers or active components during use. Therefore, their activity and life are not ideal, and their application is greatly limited.

The new high-efficiency ozone decomposition composite activated carbon catalyst developed in this project can solve the current problems of low activity and short life for ozone catalytic decomposition. The ozone decomposition catalytic activity of the activated carbon composite catalyst can remain more than 80% within 1000 hours of continuous use. Based on 5 hours of use per day, its service life can be as long as 200 days, basically meeting the needs of industrial applications and is currently the most industrialized. An ozone decomposition catalyst with prospects for industrialization. At the same time, this project uses cheap traditional activated carbon as raw material, which will greatly enhance its market value.