Liang Fuyan, Zhang Pengyi, Yu Gang, Chen Qing
Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China.
Huan Jing Ke Xue. 2002 Nov;23(6):17-21.
The degradation of toluene (10-80 mg/m3) in the gas phase by combined ozone and photocatalysis was studied. The effect of the inlet concentration, air flow rate and humidity on the degradation efficiency and removal load was investigated. Then the efficiency of combined ozone and photocatalysis was compared with that of photocatalysis. The experiment results indicated that combination of ozone and photocatalysis was far more efficient than photocatalysis in degrading toluene, especially under high-level inlet concentration. When the inlet concentration was in the range of 10-40 mg/m3, the degradation efficiency of combined ozone and photocatalysis was over 90% and dropped linearly and very slowly with the increase of inlet concentration of toluene. The degradation efficiency of combined ozone and photocatalysis was slightly affected by humidity with the efficiency difference less than 2.5%.
研究了臭氧与光催化联合作用对气相中甲苯（10 - 80毫克/立方米）的降解情况。考察了进气浓度、空气流速和湿度对降解效率及去除负荷的影响。然后将臭氧与光催化联合作用的效率与光催化的效率进行了比较。实验结果表明，在降解甲苯方面，臭氧与光催化联合作用远比光催化有效，尤其是在高进气浓度条件下。当进气浓度在10 - 40毫克/立方米范围内时，臭氧与光催化联合作用的降解效率超过90%，并且随着甲苯进气浓度的增加呈线性且非常缓慢地下降。臭氧与光催化联合作用的降解效率受湿度的影响较小，效率差异小于2.5%。
