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Solar heating assisted rapid cleanup of viscous crude oil spills using reduced graphene oxide-coated sponges

查看全文 作  者:WANG [1,2]XinZhi;LIU [1,2]Dan;CHENG [1,2]Gong;HUANG [3]YuDong;HE [1,2]YuRong 高影响力作者 机构地区:[1]School of Energy Science and Engineering,Harbin Institute of Technology,Harbin 150001,China;[2]Heilongjiang Key Laboratory of New Energy Storage Materials and Processes,Harbin 150001,China;[3]MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage,School of Chemistry and Chemical Engineering,Harbin Institute of Technology,Harbin 150001,China高影响力机构 出  处:《Science China(Technological Sciences)》索引2020年第63卷第8期,共10页高影响力期刊 基  金:supported by the National Natural Science Foundation of China(Grant No.51806052);the Natural Science Foundation of Heilongjiang Province(Grant No.LH2019E053);the China Postdoctoral Science Foundation(Grant Nos.2018M630352,2019T120265);the Natural Scientific Research Innovation Foundation in Harbin Institute of Technology(Grant No.2020053)。 摘  要:The rapid cleanup of heavy crude oil spills is challenging due to the poor mobility of highly viscous oil.Traditional absorption strategies involve heating oils to a relatively high temperature to reduce their viscosity,but this method is expensive.Herein,a solar-heated reduced graphene oxide(rGO)-wrapped melamine sponge(MS)was proposed to rapidly absorb oil.The prepared rGO-MS exhibited good hydrophobicity and oleophilicity and could be used for the rapid cleanup of oil spills from water.In addition,the excellent photothermal conversion effect of rGO enabled the rGO-MS composite to achieve a solar energy absorption efficiency of 91%.Due to the localized solar energy collection and wetting properties of rGO-MS,viscous oil near the contact region was effectively heated,enabling rapid heavy oil recovery under solar light illumination.This proposed solar heating-assisted viscous oil sorbent has great promise for use in heavy oil spill cleanups in the future. 关 键 词:heavy oil spill hydrophobic and oleophilic porous absorbent graphene photothermal conversion
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