AACVD Synthesis and Characterization of Iron and Copper Oxides Modified ZnO Structured Films

Nanomaterials

Stella Vallejos¹  Martha Claros¹  Milena Setka¹  YecidP. Jimenez² 

[1] 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, 1270300 Antofagasta, Chile;

关键词: aacvd;    zinc oxide;    iron oxide;    copper oxide;    structured films;    water contact angle;   

DOI  :  10.3390/nano10030471

来源: DOAJ

【 摘 要 】

Non-modified (ZnO) and modified (Fe₂O₃@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, Fe₂O₃, 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 Fe₂O₃@ZnO and CuO@ZnO, respectively. This is attributed to the different surface properties of the films including the morphology and chemical composition.

【 授权许可】

Unknown