title: Facile and Scalable Preparation of Graphene Oxide-Based Magnetic Hybrids for Fast and Highly Efficient Removal of Organic Dyes.
abstract: 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.
authors.affiliation: 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.
authors.forename: Tifeng
authors.initials: T
authors.lastname: Jiao
authors.affiliation: Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, P. R. China.
authors.forename: Yazhou
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, P. R. China.
authors.forename: Yitian
authors.initials: Y
authors.lastname: Wu
authors.affiliation: Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, P. R. China.
authors.forename: Qingrui
authors.initials: Q
authors.lastname: Zhang
authors.affiliation: National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China.
authors.forename: Xuehai
authors.initials: X
authors.lastname: Yan
authors.affiliation: Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, P. R. China.
authors.forename: Faming
authors.initials: F
authors.lastname: Gao
authors.affiliation: Department of Chemistry and Biochemistry, Central Michigan University, Mount Pleasant, MI 48859, USA.
authors.forename: Adam J P
authors.initials: AJ
authors.lastname: Bauer
authors.affiliation: Department of Chemistry and Biochemistry, Central Michigan University, Mount Pleasant, MI 48859, USA.
authors.forename: Jianzhao
authors.initials: J
authors.lastname: Liu
authors.affiliation: Research Laboratory for Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
authors.forename: Tingying
authors.initials: T
authors.lastname: Zeng
authors.affiliation: Department of Chemistry and Biochemistry, Central Michigan University, Mount Pleasant, MI 48859, USA.
authors.forename: Bingbing
authors.initials: B
authors.lastname: Li
mesh_terms: D000327:Adsorption; D004396:Coloring Agents / Q000737:chemistry*; D006108:Graphite / Q000737:chemistry*; D007700:Kinetics; D058185:Magnetite Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D015394:Molecular Structure; D010087:Oxides / Q000737:chemistry*
chemical_list: D004396:Coloring Agents; D058185:Magnetite Nanoparticles; D010087:Oxides; D006108:Graphite