化工学报2003，Vol.54Issue(9)：1315-1318,4.
超临界乙醇流体制备TiO2光催化剂(Ⅰ)合成与光催化性能
PREPARATION OF PHOTO-CATALYTIC TiO2 BY SUPERCRITICAL ETHANOL (Ⅰ) SYNTHESIS AND PHOTOCATALYSIS
摘要
Abstract
Photo-catalytic TiO2 was prepared from tetraisopropyl titanate (TPT) in supercritical ethanol. It was found that TPT in supercritical ethanol could be effectively converted into the anatase-form of TiO2 crystallites. The anatase-form of TiO2 as a photo-catalyst was evaluated for its adsorptivity and subsequent photo-catalytic activities on formaldehyde, one of the harmful air pollutants in the environment. As a result, the supercritically treated TiO2 had a high decomposing ability. Under the same condition, the experiment was repeated for 5 times,and photocatalysis of the samples did not decrease. This indicated that the supercritical treatment was effective to prepare photo-catalytic TiO2, which was feature by stability, longevity and high photo-catalytic decomposition of formaldehyde for environmental cleaning. Meanwhile, unlike conventional chemical reaction, which is complex and time-consuming, supercritical treatment is easy to operate, saving both time and labor.关键词
甲醛 超临界乙醇 TiO2 光催化活性Key words
formaldehyde, supercritical ethanol, TiO2, photo-catalytic activity分类
化学化工引用本文复制引用
黄彪..超临界乙醇流体制备TiO2光催化剂(Ⅰ)合成与光催化性能[J].化工学报,2003,54(9):1315-1318,4.基金项目
国家留学基金资助项目. （）
