Weathering tests of photocatalytic facade paints containing ZnO and TiO2
Weathering tests of photocatalytic facade paints containing ZnO and TiO2
复制标题
DOI：
10.1016/j.cej.2014.03.112
复制
发表时间：
2015-02-01
影响因子：
15.1
通讯作者：
Mills, A.
中科院分区：
文献类型：
--
作者：
Baudys, M.;Krysa, J.;Mills, A.
以酸橙7为模型化合物，研究了含TiO2和ZnO自洁丙烯酸涂料的光催化性能。涂料在QUV面板中进行模拟风化测试。氧化锌未风化涂料的初始光活性显著提高。对于含有P25的涂料，光催化活性随着老化时间的增加而增加，这是由于聚合物树脂的破坏增加以及随后光催化剂颜料暴露在酸橙7测试溶液中。相比之下，在含有ZnO的涂料中，由于在风化过程中ZnO颗粒的损失和/或光腐蚀，在风化后观察到光催化活性下降。(C) 2014 Elsevier B.V.版权所有
The photocatalytic properties of self-cleaning acrylic paint containing TiO2 and ZnO were studied using Acid Orange 7 as a model compound. Paints were exposed to simulated weathering tests in a QUV panel. The initial photoactivity of the unweathered paints with ZnO was significantly higher. In the case of paints containing P25 the photocatalytic activity increases with weathering time, due to increasing destruction of the polymer resin and consequent exposure of the photocatalyst pigment to the Acid Orange 7 test solution. In contrast, in the case of paints containing ZnO, a decrease in photocatalytic activity is observed after weathering, due to the loss and/or photocorrosion of ZnO particles during the weathering process. (C) 2014 Elsevier B.V. All rights reserved.