Properties and wettability of the superhydrophobic TiO2 nanotube coating

2018 International Conference on Construction, Aviation and Environmental Engineering

生态环境科学;生物科学

Zhou, Xue^1 ; Yu, Sirong^1 ; Lv, Zhexin^1 ; Yin, Xiaoli^1

College of Material Science and Engineering, China University of Petroleum, Qingdao, Shandong

266580, China^1

关键词: Energy modification;    Lauric acid;    Moist soil;    Self-cleaning properties;    Sliding angle;    Superhydrophobic;    Superhydrophobicity;    TiO2 nanotubes;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/233/5/052029/pdf
DOI  :  10.1088/1755-1315/233/5/052029

来源: IOP

【 摘 要 】

By anodic oxidation and low-energy modification with lauric acid, superhydrophobic TiO2 nanotube coating formed on the titanium dioxide. The two factors related to the superhydrophobility that roughness and surface energy were proved in the paper. The crystal structure, surface morphology, compositions and wettability were investigated by X-ray diffraction (XRD), scanning electron microscope (SEM), energy disperse spectroscopy (EDS) and contact angle measurements, respectively. Besides, the self-cleaning property and stability were studied. The result showed the coating exhibited superhydrophobicity with the contact angle (CA) 157 ± 1° and the sliding angle (SA) 3.8 ± 0.2°. The superhydrophobic TiO2 nanotube coating showed excellent self-cleaning property to fly ashes and the moist soil. Besides, at room temperature and 180°, the stability of the coating was good.