TiO_2/ACF复合滤料光降解甲醛的实验研究  

Experimental study of photodegrading formaldehyde by TiO_2/ACF filter

作　　者：黄翔[1] 赵丽宁 狄育慧[1] 

机构地区：[1]西安工程大学环境与化学工程学院,陕西西安710048 [2]厦门中福元建筑设计研究院,福建厦门361009

出　　处：《纺织学报》2007年第10期26-29,共4页Journal of Textile Research

基　　金：国家自然科学基金资助项目(50343020)

摘　　要：以钛酸丁酯[Ti(OBu)4]为原料,用溶胶凝胶法制备纳米TiO2溶胶,采用浸渍法将溶胶整理到活性炭纤维(ACF)滤料上,并对ACF滤料原样、整理样光催化氧化甲醛气体的性能进行静态、动态对比实验。静态实验中,弱光源条件下ACF滤料原样、整理样的甲醛净化率分别为33.3%、39.6%,在强光源条件下分别为38.6%,49.2%;动态实验中,弱光源条件下ACF滤料原样、整理样的甲醛净化率分别为69.9%、77.1%,在强光源条件下分别为77.1%,85.5%。证明纳米TiO2在强光源和弱光源条件下均可以光降解甲醛。With [Ti（OBu）4] as raw materials, nanometer TiO2 was prepared by using sol-gel process, then the sol was applied to ACF （Activated Carbon Fiber） filter material by soaking method. The static and dynamic comparative study of the original sample and treated sample of ACF filter material were carried out with respect to the photocatalysis and oxidation of formaldehyde gas. In the static experiment, the formaldehyde purification rate of the original and treated samples were 33.3 % and 39.6% respectively in weak light conditions, and, 38.6 % and 49.2% in strong light conditions; in the dynamic experiment, the values were 69.9 % and 77.1% in weak light conditions, and 77.1% and 85.5 % in strong light conitions. It has proven that nanometer TiO2 can photodegrade formaldehyde in both strong light and weak light conditions.

关 键 词：活性炭纤维 光催光 纳米二氧化钛 弱光源 吸附 甲醛 

分 类 号：TS834.82[轻工技术与工程]