光催化二氧化钛超亲水无机涂层的制备及性能  

Preparation and properties of superhydrophilic inorganic coatings based on photocatalytic TiO2

作　　者：陈君华 神潇 陈雨荫 杨创辉 王庆伟 王璇 利诗婷 CHEN Junhua;SHEN Xiao;CHEN Yuyin;YANG Chuanghui;WANG Qingwei;WANG Xuan;LI Shiting(School of Environmental and Chemical Engineering,Zhaoqing University,Zhaoqing 526061,China;Guangdong Provincial Key Laboratory of Environmental Health and Land Resource,Zhaoqing 526061,China)

机构地区：[1]肇庆学院,广东肇庆526061 [2]广东省环境健康与资源利用重点实验室,广东肇庆526061

出　　处：《电镀与涂饰》2024年第6期55-61,共7页Electroplating & Finishing

基　　金：大学生创新创业训练计划项目(S202310580062)。

摘　　要：[目的]超亲水涂层具有自清洁、防雾、防污等特性,但在玻璃上应用时透光性往往不够理想。[方法]以钛酸丁酯为前驱体,乙酰丙酮为抑制剂,无水乙醇和去离子水为溶剂,加入硝酸进行催化,合成了TiO2溶胶,并将其涂覆在玻片上,经煅烧处理后获得超亲水性透明涂层。分别考察了溶胶的粒径及涂层的表面形貌、水接触角、透明度和热稳定性。[结果]TiO2亲水涂层的水接触角为8.0°,400~700 nm波长范围内的透光率仅比空白玻璃低4个百分点,加热至800℃的过程中质量损失仅为8%。[结论]该涂层具有良好的亲水性和防雾性能。[Introduction]Superhydrophilic coatings have self-cleaning,antifogging,and anti-fouling properties,but their transparency is often less than ideal when applied to glass.[Method]A TiO2 sol was synthesized with titanium butoxide as the precursor and acetylacetone as the inhibitor in the solvent composed of anhydrous ethanol and deionized water under the catalysis of nitric acid,and then coated on glass slide and subjected to calcination,forming a transparent coating with superhydrophilicity.The particle size of the sol,and the surface morphology,water contact angle,transmittance,and thermal stability of the coating were examined.[Result]The hydrophilic TiO2 coating featured a water contact angle of 8.0°and a mass loss of only 8%after being heated to 800℃.The transmittance of the coating in a wavelength range of 400 to 700 nm was only 4 percentage points lower than that of the bare glass.[Conclusion]The coating exhibits excellent hydrophilicity and antifogging performance.

关 键 词：二氧化钛涂层 溶胶-凝胶法 超亲水性 透光率 防雾性能 

分 类 号：TQ630.7[化学工程—精细化工]