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HUANG Biao
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超临界乙醇流体制备TiO2光催化剂(Ⅰ)合成与光催化性能
黄彪
福建农林大学材料工程学院,福建 南平353001
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.
HUANG Biao. PREPARATION OF PHOTO-CATALYTIC TiO2 BY SUPERCRITICAL ETHANOL (Ⅰ) SYNTHESIS AND PHOTOCATALYSIS[J]. .
黄彪.
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https://hgxb.cip.com.cn/EN/Y2003/V54/I9/1315