Department of Chemical Engineering, Federal University of Santa Maria, 97105-900, Santa Maria, Brazil E-mail:
Water Sci Technol. 2013;68(5):1031-6. doi: 10.2166/wst.2013.345.
CuO/ZnO coupled oxide films were electrodeposited onto an aluminum substrate and tested as photocatalysts in degradation of phenol molecules in aqueous solution under sunlight. The obtained films were characterized by X-ray diffraction, scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS). The results showed that the photocatalytic activity of films was significant, especially to coupled oxide film with a CuO/ZnO ratio equal to 0.697, which presented about 70% degradation of the aromatic molecules and 42% of total organic carbon (TOC) removal at 300 min under solar irradiation. Therefore, this work highlights the potential application of CuO/ZnO coupled oxide films obtained by electrodeposition onto aluminum substrate in the field of photocatalysis.
氧化铜/氧化锌耦合氧化物薄膜通过电沉积法沉积在铝基底上，并在阳光照射下的水溶液中作为光催化剂来降解苯酚分子，以评估其性能。通过 X 射线衍射、扫描电子显微镜（SEM）和能谱分析（EDS）对所得到的薄膜进行了表征。结果表明，薄膜具有显著的光催化活性，特别是对于铜锌摩尔比为 0.697 的耦合氧化物薄膜，在 300 分钟的太阳光照射下，对芳香族分子的降解率约为 70%，总有机碳（TOC）的去除率约为 42%。因此，这项工作突出了通过电沉积法在铝基底上获得的氧化铜/氧化锌耦合氧化物薄膜在光催化领域的潜在应用。
