Claros Martha, Setka Milena, Jimenez Yecid P, Vallejos Stella
CEITEC-Central European Institute of Technology, Brno University of Technology, 61200 Brno, Czech Republic.
Departamento de Ingeniería Química y Procesos de Minerales, Facultad de Ingeniería, Universidad de Antofagasta, Antofagasta 1270300, Chile.
Nanomaterials (Basel). 2020 Mar 5;10(3):471. doi: 10.3390/nano10030471.
Non-modified (ZnO) and modified (FeO@ZnO and CuO@ZnO) structured films are deposited via aerosol assisted chemical vapor deposition. The surface modification of ZnO with iron or copper oxides is achieved in a second aerosol assisted chemical vapor deposition step and the characterization of morphology, structure, and surface of these new structured films is discussed. X-ray photoelectron spectrometry and X-ray diffraction corroborate the formation of ZnO, FeO, and CuO and the electron microscopy images show the morphological and crystalline characteristics of these structured films. Static water contact angle measurements for these structured films indicate hydrophobic behavior with the modified structures showing higher contact angles compared to the non-modified films. Overall, results show that the modification of ZnO with iron or copper oxides enhances the hydrophobic behavior of the surface, increasing the contact angle of the water drops at the non-modified ZnO structures from 122 to 135 and 145 for FeO@ZnO and CuO@ZnO, respectively. This is attributed to the different surface properties of the films including the morphology and chemical composition.
通过气溶胶辅助化学气相沉积法沉积未改性的（ZnO）以及改性的（FeO@ZnO和CuO@ZnO）结构薄膜。在第二步气溶胶辅助化学气相沉积步骤中实现了用铁或铜氧化物对ZnO进行表面改性，并讨论了这些新型结构薄膜的形态、结构和表面特性。X射线光电子能谱和X射线衍射证实了ZnO、FeO和CuO的形成，电子显微镜图像显示了这些结构薄膜的形态和晶体特征。对这些结构薄膜进行的静态水接触角测量表明其具有疏水行为，与未改性薄膜相比，改性结构的接触角更高。总体而言，结果表明用铁或铜氧化物对ZnO进行改性可增强表面的疏水行为，使水滴在未改性ZnO结构上的接触角从122°分别增加到FeO@ZnO的135°和CuO@ZnO的145°。这归因于薄膜不同的表面性质，包括形态和化学成分。
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