活性碳纤维负载二氧化钛净化室内甲苯  

Removing toluene from indoor air by TiO_2 anchored on active carbon fiber

作　　者：孙如宝[1] 袭著革[1] 晁福寰[1] 张华山[1] 张伟[1] 

机构地区：[1]军事医学科学院卫生学环境医学研究所,天津300050

出　　处：《中国卫生工程学》2005年第6期332-334,共3页Chinese Journal of Public Health Engineering

基　　金：天津市自然科学基金资助项目(No.033607111)

摘　　要：目的研究活性碳纤维(ACF)负载二氧化钛对室内低浓度甲苯的净化效率。方法在自制的模拟小室内,采用低浓度甲苯作为评价气,将ACF吸附与TiO2光催化降解两种方式结合使用对甲苯进行净化,并对自制光催化剂与市售光催化剂的ACF负载光催化净化效果进行对比。结果3 mm ACF3、mm ACF+UV和负载市售光催化剂的3 mm ACF对甲苯的去除率分别为43.91%、44.83%和44.52%;毛玻璃、5 mm ACF和3 mm ACF负载市售光催化剂3、mm ACF负载自制光催化剂在UV照射下对甲苯去除率分别为17.44%5、6.06%、63.27%和63.15%。结论ACF是良好的负载材料,其规格对二者结合的协同效应具有一定的影响;自制的光催化剂具有较高的性价比。Objective To study the purifying efficiency to low concentration of toluene by TiO2 anchored on active carbon fiber （ACF） .Methods The study on the combination of the absorption of ACF and photocatalyfic degradation of titanium dioxide in a self- made small- scale environmental chamber has been conducted for the removal of low concentration of toluene, which was taken as model compound. The photocatalytic activities of self-made photoeatalyst and marketable photocatalyst were eomparecl. Results The cleaning efficiency of 3 turn ACF, 3 mm ACF ＋ UV and 3 mm ACF ＋ TiO2 were 43.91%, 44.83 %, 44.52% respectively; tile cleaning efficiency under UV of ground glass, 3 am1 and 5mm ACF loading marketable photocatalyst and 3 mm ACF loading self- made photocatalyst were 17.44% , 56.06%, 63.27%, 63.15% respectively. Conclusion ACF is a feasible loading material, wlfich specification can influence the synergistic effect of absorption and photocatalysis; self- made photocatalyst has higher cost performance titan marketable photocatalyst.

关 键 词：挥发性有机物 甲苯 光催化 活性碳纤维 

分 类 号：R163[医药卫生—公共卫生与预防医学] R122.2