Fe/Ce氧化物纳米玻璃薄膜的制备及其性能研究

Preparation and Characterizations of Fe/Ce Oxidation Nano Glass Coatings

采用柠檬酸溶胶-凝胶法制备了含有铁离子和铈离子的溶胶,并用浸渍-提拉法和热处理工艺在玻璃表面镀制了Fe/Ce氧化物薄膜。测试了镀膜玻璃从紫外光到近红外光的透过率和反射率,对薄膜的厚度、结合力、成分和相结构进行了分析。结果表明,Fe/Ce氧化物玻璃薄膜与基体结合牢固,晶粒处于纳米量级,能够屏蔽大量的紫外光,对红外光具有低的透过率,在可见光具有较高的透过率。当Fe/Ce金属元素配比为1∶3时,得到的薄膜光选择透过性能最佳,此时薄膜紫外光透射比仅为3.6%,可见光透射比为72.8%,太阳能透射比为60%,光选择性透过系数可达1.2,具备优良的滤紫外功能和一定的隔热能力。

Glass coatings that include iron and cerium oxidations were prepared by citric acid sol-gel and dip-coating method. The UV-VIS-NIR reflection and transmittance, thickness, combination intensity with glass matrix, composition and structure of coating were measured. The results showed that the coating had great combination with the substrate, and it consists ofnano holes and nano-crystals. The glass coating could shield most of the ultraviolet and some of the near infrared light, but let more visual light transmitting. When Fe ： Ce equal 1 ： 3, heated at 500℃ for 2 hours, the coefficient of UV transmittance is 3.6%, visual light 72.8%, solar energy 60%, and the coefficient of selectivity is up to 1.2. The results indicate that this kind of glass coating has very good UV-sheering and heatinsulating properties, which could be used as an effective solar control glass in automobiles and architectures.