用于快速高效去除有机染料的氧化石墨烯基磁性杂化物的简便且可扩展的制备方法。
Facile and Scalable Preparation of Graphene Oxide-Based Magnetic Hybrids for Fast and Highly Efficient Removal of Organic Dyes.
作者信息
Jiao Tifeng, Liu Yazhou, Wu Yitian, Zhang Qingrui, Yan Xuehai, Gao Faming, Bauer Adam J P, Liu Jianzhao, Zeng Tingying, Li Bingbing
机构信息
1] State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, P. R. China [2] Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, P. R. China [3] Department of Chemistry and Biochemistry, Central Michigan University, Mount Pleasant, MI 48859, USA.
Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, P. R. China.
出版信息
Sci Rep. 2015 Jul 29;5:12451. doi: 10.1038/srep12451.
This study reports the facile preparation and the dye removal efficiency of nanohybrids composed of graphene oxide (GO) and Fe3O4 nanoparticles with various geometrical structures. In comparison to previously reported GO/Fe3O4 composites prepared through the one-pot, in situ deposition of Fe3O4 nanoparticles, the GO/Fe3O4 nanohybrids reported here were obtained by taking advantage of the physical affinities between sulfonated GO and Fe3O4 nanoparticles, which allows tuning the dimensions and geometries of Fe3O4 nanoparticles in order to decrease their contact area with GO, while still maintaining the magnetic properties of the nanohybrids for easy separation and adsorbent recycling. Both the as-prepared and regenerated nanohybrids demonstrate a nearly 100% removal rate for methylene blue and an impressively high removal rate for Rhodamine B. This study provides new insights into the facile and controllable industrial scale fabrication of safe and highly efficient GO-based adsorbents for dye or other organic pollutants in a wide range of environmental-related applications.
本研究报道了由氧化石墨烯（GO）和具有各种几何结构的Fe3O4纳米颗粒组成的纳米杂化物的简便制备方法及其染料去除效率。与先前报道的通过一锅法原位沉积Fe3O4纳米颗粒制备的GO/Fe3O4复合材料相比，本文报道的GO/Fe3O4纳米杂化物是利用磺化GO与Fe3O4纳米颗粒之间的物理亲和力获得的，这使得能够调整Fe3O4纳米颗粒的尺寸和几何形状，以减小它们与GO的接触面积，同时仍保持纳米杂化物的磁性以便于分离和吸附剂回收。制备的和再生的纳米杂化物对亚甲基蓝的去除率均接近100%，对罗丹明B的去除率也高得惊人。本研究为在广泛的环境相关应用中简便且可控地大规模制备用于染料或其他有机污染物的安全高效的基于GO的吸附剂提供了新的见解。
Zotero 插件