Senobari Samaneh, Nezamzadeh-Ejhieh Alireza
Department of Chemistry, Shahreza Branch, Islamic Azad University, P.O. Box 311-86145, Shahreza, Isfahan, Islamic Republic of Iran; Young Researchers and Elite Club, Shahreza Branch, Islamic Azad University, Shahreza, Islamic Republic of Iran.
Department of Chemistry, Shahreza Branch, Islamic Azad University, P.O. Box 311-86145, Shahreza, Isfahan, Islamic Republic of Iran; Young Researchers and Elite Club, Shahreza Branch, Islamic Azad University, Shahreza, Islamic Republic of Iran; Razi Chemistry Research Center (RCRC), Shahreza Branch, Islamic Azad University, Isfahan, Islamic Republic of Iran.
Spectrochim Acta A Mol Biomol Spectrosc. 2018 May 5;196:334-343. doi: 10.1016/j.saa.2018.02.043. Epub 2018 Feb 15.
Coupled CdS-CuO nanoparticles (NPs) subjected in the photocatalytic degradation of Methylene blue (MB) aqueous solution. The calcination temperature and the crystallite phase of CuO had a significant role on the photocatalytic activity of the coupled system and CuO-CdS catalyst (containing CuO calcined at 200°C for 2h) showed the best photocatalytic activity. The coupled system showed increased activity with respect to the monocomponent semiconductors. The prepared catalysts characterized by x-ray diffraction (XRD), scanning electron microscope equipped with energy dispersive X-ray (EDX) analyzer, x-ray mapping, Fourier transform infrared (FTIR) spectroscopy, diffuse reflectance spectroscopy (DRS) and electrochemical impedance spectroscopy (EIS) techniques. The best degradation extent of MB was obtained at: C: 1mgL, pH5, 80min irradiation time and 0.8gL of the CuO-CdS catalyst. The chemical oxygen demand (COD) confirmed about 83% of MB molecules can be mineralized at the optimum conditions.
耦合的硫化镉-氧化铜纳米颗粒（NPs）用于亚甲基蓝（MB）水溶液的光催化降解。氧化铜的煅烧温度和微晶相在耦合体系的光催化活性中起重要作用，且氧化铜-硫化镉催化剂（包含在200°C煅烧2小时的氧化铜）表现出最佳的光催化活性。耦合体系相对于单组分半导体显示出更高的活性。所制备的催化剂通过X射线衍射（XRD）、配备能量色散X射线（EDX）分析仪的扫描电子显微镜、X射线映射、傅里叶变换红外（FTIR）光谱、漫反射光谱（DRS）和电化学阻抗谱（EIS）技术进行表征。在以下条件下获得了MB的最佳降解程度：C：1mg/L，pH5，照射时间80分钟以及0.8g/L的氧化铜-硫化镉催化剂。化学需氧量（COD）证实，在最佳条件下约83%的MB分子可被矿化。
