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低成本溶胶-凝胶法制备SiO2/TiO2双层膜的减反射与自清洁性能
张慧,范多旺*,俞天智,王成龙
作者单位E-mail
张慧 兰州交通大学光电技术与智能控制重点实验兰州730070  
范多旺* 兰州交通大学光电技术与智能控制重点实验兰州730070 fanduowang@lzdctc.com 
俞天智 兰州交通大学光电技术与智能控制重点实验兰州730070  
王成龙 兰州交通大学光电技术与智能控制重点实验兰州730070  
摘要:
将玻璃基底依次在低成本的SiO2溶胶和TiO2溶胶中浸渍后,在500 oC下煅烧制备了同时具备减反射与自清洁性能的SiO2/TiO2双层膜.该膜的光学性能与结构特征分别通过紫外-可见分光光度计和场发射扫描电镜进行了表征.同时,源于超亲水性和光催化作用的自清洁性能也凸显出来.实验结果表明制备SiO2/TiO2双层膜对光的透射率最高可达到95%,同时具备自清洁性能.
关键词:  SiO2/TiO2双层膜,减反射,自清洁,溶胶-凝胶法
DOI:10.1063/1674-0068/28/cjcp1504074
分类号:
基金项目:
Antireflective and Self-cleaning Properties of SiO2/TiO2 Double-Layer Films Prepared by Cost-E ective Sol-Gel Process
Hui Zhang,Duo-wang Fan*,Tian-zhi Yu,Cheng-long Wang
Abstract:
SiO2/TiO2 double-layer films with antireflective and self-cleaning properties were prepared by dip-coating glass substrate into cost-effective SiO2 and TiO2 sol successively and subse-quently being calcined at 500 oC. The optical and structural properties of films have been in-vestigated by UV-visible spectrophotometer and field emission scanning electron microscope, respectively. At the same time, self-cleaning property generated from superhydrophilicity and photocatalysis was obtained. The results indicated that the as-prepared SiO2/TiO2 double-layer films show maximum transmittance of 95% and self-cleaning property.
Key words:  SiO2/TiO2 double-layer films, Antireflective, Self-cleaning, Sol-gel process