In the present study, copper complex supported on surface-modified Fe3O4/SiO2 nanoparticles (Fe3O4@SiO2–Glycerole–Cu(II)) was successfully fabricated and characterized by fourier transform infrared spectroscopy (FT-IR), thermal gravimetric analysis (TGA), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray mapping, energy-dispersive X-ray spectroscopy (EDS), inductively coupled plasma optical emission spectroscopy (ICP-OES), N2 adsorption and desorption (BET) and Vibrating Sample Magnetometer (VSM) techniques. This magnetic nanocatalyst utilized as an effective catalyst for the C–S and C–O cross-coupling reactions of aryl halides with thiourea and phenol. The catalyst could be quickly and completely recovered using an external magnetic field and reused for six reaction cycles without significant change in catalytic activity. A green and novel Fe3O4@SiO2–Glycerole–Cu(II) catalyst successfully was prepared and characterized. This catalyst can be used for the C– and C–O cross coupling reactions. Fe3O4@SiO2–Glycerole–Cu(II) could be recovered easily and reused many times without important decrease in efficiency.

中文翻译：

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负载在 Fe3O4 磁性纳米颗粒上的甘油 Cu(II) 配合物：一种用于形成芳基硫和芳基氧键的新型高效可重复使用催化剂

在本研究中，负载在表面改性的 Fe3O4/SiO2 纳米粒子（Fe3O4@SiO2-Glycerole-Cu(II)）上的铜配合物被成功制备，并通过傅里叶变换红外光谱（FT-IR）、热重分析（TGA）表征、扫描电子显微镜 (SEM)、透射电子显微镜 (TEM)、X 射线映射、能量色散 X 射线光谱 (EDS)、电感耦合等离子体发射光谱 (ICP-OES)、N2 吸附和解吸 (BET)和振动样品磁强计 (VSM) 技术。这种磁性纳米催化剂用作芳基卤化物与硫脲和苯酚的 C-S 和 C-O 交叉偶联反应的有效催化剂。该催化剂可以使用外部磁场快速完全回收并重复使用六个反应循环而催化活性没有显着变化。成功制备并表征了一种绿色新型 Fe3O4@SiO2-Glycerole-Cu(II) 催化剂。该催化剂可用于C-和C-O交叉偶联反应。Fe3O4@SiO2–Glycerole–Cu(II) 可以很容易地回收并重复使用多次，而不会显着降低效率。