灼烧温度对Mn/GO催化PMS氧化NO的影响

The Influence of Calcination Temperature on the Mn/GO Catalytic Oxidation NO by PMS

以氧化石墨为载体,Mn(NO3)2·4H2O为前驱体,采用溶液浸渍法制备了Mn/GO催化剂,在此基础上考察了不同灼烧温度的条件下,pH、催化剂浓度、PMS浓度、温度及反应时间对该催化剂催化PMS氧化NO的影响。实验结果表明,在灼烧温度为180℃的情况下,pH为4.0,催化剂浓度为0.5 mmol/L、PMS浓度为6 mmol/L、温度为25℃时Mn/GO在30min内对NO的氧化效率为65.4%。

With graphite oxide as a carrier, Mn(NO3)2·4H2O as precursor, the Mn/GO catalysts were prepared by solution impregnation method. On the basis, the effects of pH, catalyst concentration, PMS concentration, temperature and reaction time on the catalytic oxidation of NO were investigation under the condition of different calcinations. The results showed that the oxidation rate of NO could reach 65.4% under the condition of pH 4.0, the catalyst concentration 0.5 mmol/L, the concentration of the PMS 6 mmol/L, the temperature 25 ℃ for 30min when the calcination temperature is 180 ℃.