Social Determinants of Health Research Center, Faculty of Health, Department of Environmental Health Engineering, Birjand University of Medical Sciences, Birjand, Iran.
Student Research Committee, Department of Environmental Health Engineering, Faculty of Health, Mashhad University of Medical Sciences, Mashhad, Iran.
Environ Sci Pollut Res Int. 2021 Apr;28(15):19222-19233. doi: 10.1007/s11356-020-12066-3. Epub 2021 Jan 4.
The magnetic nanocomposites composed of copper sulphide, iron oxide, and graphene oxide (CuS/FeO/GO) were synthesized through a facile sol-gel combined with hydrothermal techniques for photodegradation of methylene blue (MB) as a model organic pollutant. The as-prepared samples were characterized by powder X-ray diffraction (XRD), vibrating sample magnetometer (VSM), differential reflectance spectroscopy (DRS), Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FESEM), and energy dispersive X-ray analysis (EDX) and results confirmed successful synthesis of magnetic nanocomposite. Presence of FeO and GO in nanocomposite induced a synergistic effect in CuS performance as CSFG (i.e. 88% CuS, 6% FeO, and 6% GO). The photocatalytic degradation efficiency of MB reached up to 90.3% after exposure to visible light irradiation for 80 min. The composite nanosheets are photostable, reusable, and magnetically recoverable, revealing potential application in removal of organic pollutants.
通过简便的溶胶-凝胶结合水热技术合成了由硫化铜、氧化铁和氧化石墨烯组成的磁性纳米复合材料（CuS/FeO/GO），用于亚甲基蓝（MB）的光降解作为模型有机污染物。通过粉末 X 射线衍射（XRD）、振动样品磁强计（VSM）、差示反射光谱（DRS）、傅里叶变换红外光谱（FTIR）、场发射扫描电子显微镜（FESEM）和能谱分析（EDX）对所制备的样品进行了表征，结果证实了磁性纳米复合材料的成功合成。纳米复合材料中 FeO 和 GO 的存在诱导了 CSFG（即 88%的 CuS、6%的 FeO 和 6%的 GO）中 CuS 性能的协同效应。在可见光照射 80 分钟后，MB 的光催化降解效率达到 90.3%。该复合纳米片具有良好的光稳定性、可重复使用性和磁性可回收性，显示出在去除有机污染物方面的潜在应用。
