【作者】 朱冬生； 侯海燕； 余斯安；

【Author】 ZHU Dong-sheng~1 HOU Hai-yan~1 YU Si-an~2 (1.The Key Laboratory of Enhanced Heat Transfer & Energy Conservation of Ministry of Education,The School of Chemical and Energy Engineering,South China Univ.of Tech,Guangzhou 510640,China; 2.School of Mechanical and Enginering,Southwcst Jiaotong University,Chendu 610031,China)

【机构】 华南理工大学化工与能源学院传热与节能重点实验室； 西南交通大学机械工程学院；

【摘要】 以钛酸丁酯 Ti（OC₄H₉）₄为原料,采用了溶胶- 凝胶法制备纳米 TiO₂颗粒,并做了 XRD 表征．以太阳光为光源,以纳米 TiO₂为光催化剂,降解富集在滤布上的油雾．实验研究了溶胶浓度、制备溶胶方法和反应温度对油雾降解的影响．实验结果表明：光催化剂 TiO₂ 在太阳光下能使被吸附的油雾发生降解,且降解反应速度快,效果好．更多还原

【Abstract】 The nanometer TiO₂ is prepared using the sol-gel method from Ti（OC₄H₉）₄ in C₂H₅OH that showed a higher activity.The degradation of oil mist of fabric in aqueous solution was conducted use nanometer TiO₂ as photochemical catalyst under solar irradiation.The effects of the concentration of TiO₂,the preparation of the TiO₂ sol and the temperature are explored on the photocatalysis performance by experiments.The results indicate that the purifying performance of the nanometer material is superior to that of the ordinary materials,the photodegradation effect is high and the reaction is fast.更多还原