With the goal of investigating the effect on ZnO on the photo-chemical degradation of pharmaceuticals (using paracetamol as a model compound), a thin film of ZnO was grown -by means of ultrasonic spray pyrolysis on glass substrates. The morphology, crystalline structure and elemental composition of the obtained thin films were determined by scanning electron microscopy, X-ray diffraction and energy-dispersive X-ray spectroscopy techniques. UV–vis spectroscopy was used to determine the corresponding optical bandgap. To evaluate the catalytic activity of zinc oxide films towards the degradation of selected pharmaceutical compounds, capillary electrophoresis was used. The structure of the byproducts generated during the photocatalytic reactions, was determined by gas chromatography coupled with mass spectroscopy. According to our results, the film allowed coupling relatively mild conditions (0.35 % H₂O₂ and UV light 365 nm / 6 W cm⁻²) and still reach a degradation efficiency of 88.1 %. Under the selected experimental conditions, the approach was also applicable to other compounds with similar properties (diclofenac, paracetamol, diflunisal and acetylsalicylic acid).

为了研究对ZnO对药物的光化学降解的影响（使用对乙酰氨基酚作为模型化合物），通过在玻璃基板上进行超声喷雾热解来生长ZnO薄膜。通过扫描电子显微镜，X射线衍射和能量色散X射线光谱技术确定所得薄膜的形态，晶体结构和元素组成。紫外可见光谱用于确定相应的光学带隙。为了评估氧化锌膜对所选药物化合物降解的催化活性，使用了毛细管电泳。在光催化反应过程中产生的副产物的结构是通过气相色谱法和质谱法确定的。根据我们的结果，₂ O ₂和365 nm / 6 W cm ^-2的紫外光）仍能达到88.1％的降解效率。在选定的实验条件下，该方法还适用于其他具有相似性质的化合物（双氯芬酸，扑热息痛，双氟尼醛和乙酰水杨酸）。