流化床TiO_2光催化降解乙醛气体的研究

Photocatalytic Degradation of Acetaldehyde Using TiO_2 Fluidized Bed

光催化降解有害气体是一项新兴的颇有发展前途的环境友好催化新技术 ,采用溶胶 -凝胶法制得 1 0～ 30nm的二氧化钛 ,采用自制的流化床光催化气体反应器降解乙醛气体 ,流量 1 0 0mL/min ,乙醛气体浓度 1 .8～ 9mg/m3 ,降解率达到 80 %以上。

This paper reported on a bench-scale experiment for purification of acetaldehyde-bearing air by photo-catalysis. The laboratory work involves preparing titanium dioxide in 10-30nm using a sol-gel method and a fluidized-bed continuous flow gas reactor. The experimental results showed the acetaldehyde degradation rate over 80%.