Abstract
Micro-size oil adsorbents are effective for the rapid remediation of special oil spills. Here, N-doped reduced graphene oxide(RGO) microspheres(ca. 150 µm in diameter) with a local radially aligned and porous structure are fabricated by combining electrospray-freeze-drying with thermal treatment for rapid separation of oil-water. Owing to its hydrophobic/oleophilic properties and oriented structure, the N-doped RGO microspheres achieve high capacities and fast adsorption rates for a variety of oils and organic solvents. Furthermore, excellent oil-water separation performance on floating oil/oil-water emulsions and stable cyclic adsorption capacities are obtained for the local radially aligned and porous microsphere. Therefore, N-doped RGO microspheres with the unique porous structure have the potential for the remediation of oily sewage and oil spills.
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This work was supported by the National Natural Science Foundation of China(No.51972015).
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The oil-water separation performance of electrospray reduced graphene oxide microspheres with a local radially aligned and porous structure
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Yu, R., Shi, Y. & Yang, D. Oil-Water Separation Performance of Electrospray Reduced Graphene Oxide Microspheres with a Local Radially Aligned and Porous Structure. Chem. Res. Chin. Univ. 37, 528–534 (2021). https://doi.org/10.1007/s40242-021-1105-7
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DOI: https://doi.org/10.1007/s40242-021-1105-7