Experimental Study on the Removal of Formaldehyde by Plasma Combined with Photocatalysis
This paper describes the decomposition of gas-phase HCHO using a plasma-driven catalyst reactor using TiO2 as catalyst loaded on the activated carbon filter. Comparing with the photocatalytic decomposition of HCHO with TiO2 as catalyst, the photocatalytic removal of HCHO was enhanced using TiO2 loaded on the activated carbon filter for the local concentration of pollutant on the surface of photocatalyst TiO2 was increased by the absorption of activated carbon. Based on the above mentioned experiment, this paper analyzed the synergetic effect of plasma discharge and photocatalysis on the removal of indoor HCHO. The results showed that the combination of photocatalysis and plasma technology could improve the removal of HCHO sharply with the exciting voltage of plasma being more than 6KV. Using the testing equipment in this paper, The removal of formaldehyde was maximal when the exciting voltage was 12KV. But the photocatalytic removal of formaldehyde combinded the plasma was very few due to the performance of catalyst. So the combination of photocatalysis with plasma is an applying direction of photocatalytic technology for indoor pollutant gases purification, but the photocatalysts activity need to be improved.
Photocatalysis plasma Formaldehyde TiO2
鹿院卫 王丁会 盛建平 马重芳
北京工业大学传热强化与过程节能教育部重点实验室,中国,北京,100022
国际会议
成都
英文
2007-11-19（万方平台首次上网日期，不代表论文的发表时间）