A novel recyclable,superhydrophobic and superoleophilic graphene-based textile sorbent was prepared for the removal of oil spills and organic pollutants,by functionalizing cotton mesh gauze with reduced graphene oxide...A novel recyclable,superhydrophobic and superoleophilic graphene-based textile sorbent was prepared for the removal of oil spills and organic pollutants,by functionalizing cotton mesh gauze with reduced graphene oxide(RGO) using dip-coating and hydrothermal reduction approach.The RGO-gauze composite textile showed efficient water/oil separation,and the amount of oil absorbed by the sorbent could be up to 11 times of its own weight.About 50(±5)% absorbed oil could be recycled by mechanical squeezing and it was mainly extracted from the reserve of large-diameter capillary action.The RGO-gauze maintained high structural stability and outstanding recyclability after eight cycles of oil removal.This RGO-gauze consumes a small quantity of graphene(0.6 g m^(-2)) and can be produced in large scale,very suitable for application in the cleanup of oil spill and organic solvent effluent.展开更多
基金supported by the National Natural Science Foundation of China(61504062 and 21576211)Priority Academic Program Development of Jiangsu Higher Education Institutions(YX03001)+3 种基金Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM)Synergistic Innovation Center for Organic Electronics and Information Displays,Jiangsu Provincial Natural Science Foundation(BK20141424 and BK20150863)Qing Lan Project of Jiangsu Provincethe Scientific Research Foundation of Nanjing University of Posts&Telecommunications(NY214183)
文摘A novel recyclable,superhydrophobic and superoleophilic graphene-based textile sorbent was prepared for the removal of oil spills and organic pollutants,by functionalizing cotton mesh gauze with reduced graphene oxide(RGO) using dip-coating and hydrothermal reduction approach.The RGO-gauze composite textile showed efficient water/oil separation,and the amount of oil absorbed by the sorbent could be up to 11 times of its own weight.About 50(±5)% absorbed oil could be recycled by mechanical squeezing and it was mainly extracted from the reserve of large-diameter capillary action.The RGO-gauze maintained high structural stability and outstanding recyclability after eight cycles of oil removal.This RGO-gauze consumes a small quantity of graphene(0.6 g m^(-2)) and can be produced in large scale,very suitable for application in the cleanup of oil spill and organic solvent effluent.
