Abstract This study is an attempt to present a novel idea for enhancing the properties of the CdO thin film onto the quartz substrate by doping CuO on the catalytic activity for degradation of 4-nitrophenol. In this work, the CuO doped CdO thin film is carried by switching of targets between Cd and Cu by Pulsed Laser Deposition (PLD) Technique via nanosecond Nd:YAG laser to enhance the performance of the as-prepared CdO thin film, which are performed by various spectroscopic techniques. From X-ray diffraction, the crystallinity of CdO thin film was improved in the case of doping with CuO due to the grain growth by increasing the intensity of the diffraction peaks at (111) and decreasing the intensity of the diffraction peaks at (200) with slightly shifted toward higher value. From UV–visible spectroscopy, the maximum value of transmittance in the visible region of CdO was decreased after doping with CuO due to a less scattering property and high structural homogeneity. From photoluminescence, the emission intensity decreases related to the presence of impurities of CuO ions. From Fourier transform infrared spectroscopy, the stretching vibration modes are based on CdO and CuO structure. The scanning electron microscope showed a semi-spherical shape of CdO structure with some irregular shape nanoparticles related to CuO structure. After that, the catalytic activity for degradation of 4-nitrophenol of the CdO thin film is improved after doping with CuO from 0% to 92.3% within 2 h.

中文翻译：

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CuO掺杂对CdO薄膜性能的影响对脉冲激光沉积技术催化降解的影响

摘要 本研究试图提出一种通过掺杂 CuO 对降解 4-硝基苯酚的催化活性来增强石英基板上 CdO 薄膜性能的新想法。在这项工作中，CuO 掺杂的 CdO 薄膜是通过脉冲激光沉积 (PLD) 技术通过纳秒 Nd:YAG 激光在 Cd 和 Cu 之间切换目标来承载的，以提高所制备的 CdO 薄膜的性能，这是执行通过各种光谱技术。从 X 射线衍射来看，在掺杂 CuO 的情况下，由于晶粒生长，CdO 薄膜的结晶度通过增加（111）处的衍射峰强度和降低（200）处的衍射峰强度而得到改善略微转向更高的价值。从紫外可见光谱，掺杂 CuO 后，CdO 在可见光区的透射率最大值降低，原因是散射特性较小，结构均匀性较高。从光致发光来看，发射强度降低与 CuO 离子杂质的存在有关。从傅里叶变换红外光谱来看，伸缩振动模式基于 CdO 和 CuO 结构。扫描电子显微镜显示半球形的 CdO 结构与一些与 CuO 结构相关的不规则形状的纳米粒子。之后，掺杂CuO 2 h后，CdO薄膜对4-硝基苯酚降解的催化活性从0%提高到92.3%。发射强度降低与 CuO 离子杂质的存在有关。从傅里叶变换红外光谱来看，伸缩振动模式基于 CdO 和 CuO 结构。扫描电子显微镜显示半球形的 CdO 结构与一些与 CuO 结构相关的不规则形状的纳米粒子。之后，掺杂CuO 2 h后，CdO薄膜对4-硝基苯酚降解的催化活性从0%提高到92.3%。发射强度降低与 CuO 离子杂质的存在有关。从傅里叶变换红外光谱来看，伸缩振动模式基于 CdO 和 CuO 结构。扫描电子显微镜显示半球形的 CdO 结构与一些与 CuO 结构相关的不规则形状的纳米粒子。之后，掺杂CuO 2 h后，CdO薄膜对4-硝基苯酚降解的催化活性从0%提高到92.3%。