Self-collection and degradation technology of automotive exhaust based on photocatalysis
KANG Xianzhang
ZHAO Zhizhong
SUI Mingyan
LIANG Hao
XUE Jun
LIU Zhimin
Abstract：In order to analyze the key indicators of photocatalytic degradation of automobile exhaust technology and improve the efficiency of automobile exhaust degradation,nano-TiO2 is used as a catalyst,and an indoor self-collection automobile exhaust degradation test is designed.Flowing automobile exhaust is used as the test source,and NO is used as the index gas to analyze the effects of different nano-TiO2 mass concentrations,exhaust flow rates,temperatures,and ultraviolet irradiance on the degradation efficiency of NO in automobile exhaust.The experimental results show that the degradation efficiency of NO in automobile exhaust increases first and then decreases with the increase of nano-TiO2 mass concentration and exhaust flow rate;The degradation efficiency of NO is maximum when the mass concentration of nano-TiO2 is 40 g/m3 and the exhaust flow rate is 2.5 m/s;The indoor self-collecting automobile exhaust degradation test is less affected by the external environment,and the temperature and ultraviolet irradiance has little effect on the degradation efficiency of NO.
Keywords：nano-TiO2photocatalysisautomobile exhaustNO degradation
Publication Date：2024-09-30
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：5( 99-103 )