Micro-size oil adsorbents are effective for the rapid remediation of special oil spills.Here,N-doped reduced graphene oxide(RGO)microspheres(ca.150µm in diameter)with a local radially aligned and porous structure...Micro-size oil adsorbents are effective for the rapid remediation of special oil spills.Here,N-doped reduced graphene oxide(RGO)microspheres(ca.150µm 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.展开更多
基金This work was supported by the National Natural Science Foundation of China(No.51972015).
文摘Micro-size oil adsorbents are effective for the rapid remediation of special oil spills.Here,N-doped reduced graphene oxide(RGO)microspheres(ca.150µm 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.
