采用简单的水热法制备了超疏水性ZnO纳米棒薄膜,在用磁控溅射在Si(111)衬底上生长一层ZnO籽晶层的基础上,利用水热法制备了空间取向一致的ZnO纳米棒阵列,经修饰后由亲水性转变为超疏水性。用扫描电子显微镜、X射线衍射对样品表面和结构特征进行了表征,用接触角测量仪测出水滴在ZnO纳米棒薄膜表面的接触角为(160±1)°,滚动角为5°。
Well-aligned ZnO nanorods array films (ZnO-NAFs) were coated on Si(111)substrate by hydrothermal method. A thin buffer layer of ZnO seeds were first deposited via RF magnetron sputtering, the ZnO-NAFs were then grown up in a simple aqueous solution. We report a surface-modification induced hydrophilicity to superhydrophobicity transiton on ZnO-NAFs. The sample was characterized by field emission scanning electron microscopy (FESEM) and X-ray diffraction (XRD). The surfaces of ZnO-NAFs was superhydrophobic with a three-phase contact angle of (160±1)°, while the sliding angle is 5°.