The novel composite films containing clustered TiO2 particles and fine tourmaline particles on the surface of copper webs were prepared by the sol-gel method. The microstructures of the composite films were investigat...The novel composite films containing clustered TiO2 particles and fine tourmaline particles on the surface of copper webs were prepared by the sol-gel method. The microstructures of the composite films were investigated by scanning electron microscopy (SEM), and the photocatalytic activity of the films was evaluated by photocatalytic degradation of methyl orange, respectively. The results indicate that tourmaline particles can obviously influence the microstructures of TiO2 films and enhance the photocatalytic activity due to their spontaneous permanent polarity and high radiotechnology of far infrared. During preparing the composite films, the clustered TiO2 particles with lots of nano-sized ladder layers can grow on the surface of fine tourmaline particles, the thickness of ladder layer is 10 nm, and the average diameter of nano-sized TiO2 particles is 15 nm.展开更多
基金Project(E2004000033) supported by the Natural Science Foundation of Hebei Province, China
文摘The novel composite films containing clustered TiO2 particles and fine tourmaline particles on the surface of copper webs were prepared by the sol-gel method. The microstructures of the composite films were investigated by scanning electron microscopy (SEM), and the photocatalytic activity of the films was evaluated by photocatalytic degradation of methyl orange, respectively. The results indicate that tourmaline particles can obviously influence the microstructures of TiO2 films and enhance the photocatalytic activity due to their spontaneous permanent polarity and high radiotechnology of far infrared. During preparing the composite films, the clustered TiO2 particles with lots of nano-sized ladder layers can grow on the surface of fine tourmaline particles, the thickness of ladder layer is 10 nm, and the average diameter of nano-sized TiO2 particles is 15 nm.
文摘以SG-Si900、钛酸四丁酯和正硅酸乙酯为主要原料缩聚合成钛/硅树脂,与苯丙乳液进行复配,并投加TiO2-SiO2/电气石复合光催化剂,制备钛/硅树脂-苯丙复合乳液自清洁建筑外墙涂料.经测试,该涂料常规性能符合GB/T 9755-2001《合成树脂乳液外墙涂料》要求,在室外其涂层与水的接触角能够良好地保持在5°～8°;,同时对金黄葡萄球菌和大肠杆菌的抑菌圈直径分别达到16.7 mm和16.3 mm.
