不同工艺参数下纳米光催化分解甲醛试验研究

Nano-photocatalytic Decomposition of Formaldehyde at Various Technical Parameters

在不同的工艺参数下对目前室内典型的污染气体甲醛进行了一系列纳米光催化分解模拟试验,结果表明:(1)采用主波长为254nm的紫外灯对甲醛有更好的分解效率;(2)甲醛的分解效率随着紫外线光强、制备有纳米光催化薄膜材料的玻璃管内径的增加而增加;(3)两根不同内径的玻璃管同心圆状排列具有最高的甲醛分解效率;(4)有一个最佳的循环风速,在此风速下对甲醛的纳米光催化分解效率最高。

This paper reported on the simulation experiments of nano photocatalytic decomposition of formaldehyde, one of the typical indoor air pollutants. Preparation of materials of nano photocatalyst and the bench scale equipment for the tests was described. Technical parameters focusing on improving decomposition efficiency of formaldehyde were discussed.