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利用 Ti O2 光催化氧化技术对 NOx 进行了净化研究 .在一定反应条件下 ,NOx 光催化氧化降解率很高 ,P-2 5的降解达 97% .考察了氧气、水含量等对 NOx 光催化氧化的影响 ,同时对 NOx 的吸附、光催化氧化动力学行为及机理进行了研究 .利用 FTIR分析确定反应产物 ,催化剂失活是由于反应产物硝酸吸附在催化剂表面所致
NOx was purified by Ti O2 photocatalytic oxidation technology.Under a certain reaction condition, the degradation rate of NOx photocatalytic oxidation was very high and the degradation of P-25 was 97%. The effects of oxygen and water on the photocatalytic activity of NOx Oxidation, the adsorption of NOx and the kinetic behavior and mechanism of photocatalytic oxidation were studied.Using FTIR analysis to determine the reaction product, the catalyst deactivation was caused by the reaction product nitric acid adsorbed on the catalyst surface