期刊
CHEMICAL ENGINEERING JOURNAL
卷 95, 期 1-3, 页码 213-220出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/S1385-8947(03)00107-4
关键词
photocatalysis; preparation; TiO2; rutile; anatase
The present study shows that acidic conditions during the hydrolysis and condensation of titanium isopropoxide as well as a high water to alkoxide ratio result in crystalline TiO2 precipitates. Nanosized rutile and anatase particles were prepared at relatively low temperatures (<100 degreesC) and atmospheric pressure. The crystalline particles exhibited improved photocatalytic activity to particles prepared using the conventional alkoxide method. Surface cleanliness of the prepared particles was found to be highly influential on the photoactivity of the catalyst. The extent and type of washing was found to affect the surface properties of the particles. X-ray diffractometry, photon correlation spectroscopy (PCS), Brunauer-Emmett-Teller (BET) surface area analysis and transmission electron microscopy (TEM) were used to characterise the powders. (C) 2003 Elsevier Science B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据