The preparation of Cu_xO (CuO, CuO/Cu₂O, and Cu₂O) thin films via spray pyrolysis techniques was reported and the operational parameters were fully investigated in terms of spray time, precursor concentration and nozzle-to-substrate distance. However, the preparation of Cu_xO thin films via ultrasonic spray pyrolysis using single coordinated organic source was never investigated. Therefore herein, polymeric coordinated Cu (II) phthalate ([Cu(ph)(H₂O)])_n was prepared and utilized as a single precursor for Cu_xO thin films preparation. The prepared precursor and thin films were characterized via Fourier transform infrared spectroscopy (FTIR), elemental analysis (CHN), ultraviolet-visible spectroscopy (UV–vis), X-Ray powder diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and Field emission scanning electron microscopy (FE-SEM). By varying the deposition temperature, CuO, CuO/Cu₂O, and Cu₂O thin films were successfully obtained. The photocatalytic efficiency of the prepared Cu_xO thin films were assessed toward Methylene blue, MB, dye photodegradation under solar irradiation (Degradation efficiency = 90%). By coupling Cu₂O and CuO thin films, a heterostructured photocatalyst of CuO/Cu₂O thin film with a low-rate of recombination and an improved charge assembly was achieved and resulted in an enhanced photocatalytic activity.

报道了通过喷雾热解技术制备 Cu _x O（CuO、CuO/Cu ₂ O 和 Cu ₂ O）薄膜，并充分研究了喷雾时间、前体浓度和喷嘴到基板距离等操作参数. 然而，从未研究过使用单一配位有机源通过超声喷雾热解制备 Cu _x O 薄膜。因此，本文制备了聚合配位的邻苯二甲酸铜 (II) ([Cu(ph)(H ₂ O)]) _n并将其用作 Cu _x的单一前体O 薄膜制备。通过傅里叶变换红外光谱（FTIR）、元素分析（CHN）、紫外-可见光谱（UV-vis）、X射线粉末衍射（XRD）、X射线光电子能谱（XPS）对制备的前驱体和薄膜进行表征, 和场发射扫描电子显微镜 (FE-SEM)。通过改变沉积温度，成功地获得了CuO、CuO/Cu ₂ O 和 Cu ₂ O 薄膜。对制备的 Cu _x O 薄膜的光催化效率进行了评估，用于在太阳照射下对亚甲蓝、MB、染料的光降解（降解效率 = 90%）。通过耦合 Cu ₂ O 和 CuO 薄膜，一种异质结构的 CuO/Cu ₂光催化剂实现了具有低复合率和改进的电荷组装的 O 薄膜，并提高了光催化活性。