选择性还原氧化石墨烯文章编号:1017?8827(2022)01?0061?06选择性还原氧化石墨烯徐超1,员汝胜1,汪信2(1.福州大学光催化研究所福建省重点实验室?国家重点实验室培育基地,福建福州350002;2.南京理工大学教育部软化学与功能材料重点实验室,江苏南京210194)摘要:还原氧化石墨烯已被广泛用于制备基于石墨烯的材料三目前,还原处理方法均是尽可能地将氧化石墨烯中的功能团去除,恢复石墨烯的电子结构三由于氧化石墨烯中氧基功能团(如羟基二羧基及环氧基)不同的反应活性,氧化石墨烯是可能通过分步的方法进行还原三利用醇溶剂如乙醇二乙二醇二丙三醇还原氧化石墨烯,并采用不同分析手段对样品进行表征三结果发现,在一定条件下这些醇可选择性地还原氧化石墨烯三经这些醇的处理后,氧化石墨烯中环氧功能团被大部分去除,而其他的功能团如羟基和羧基仍被保留三这种选择性去除氧化石墨烯表面功能团的方法可利于有效地控制氧化石墨烯的还原程度二获得具有特定功能团的石墨烯衍生物,从而扩大这类材料的使用范围三关键词:氧化石墨烯;氧化功能团;醇;选择性还原基金项目:国家自然科学基金(21202236,21077023);福建省自然科学基金(2022J01035,2022J01039).作者简介:徐超,博士,讲师.E?mail:cxu@https://www.sodocs.net/doc/0b175140101.htmlSelectivereductionofgrapheneoxideXUChao1,YUANRu?sheng1,WANGXin2(1.ResearchInstituteofPhotocatalysis,FujianProvincialKeyLaboratoryofPhotocatalysis??StateKeyLaboratoryBreedingBase,FuzhouUniversity,Fuzhou350002,China;2.KeyLaboratoryforSoftChemistryandFunctionalMaterialsofMinistryEducation,NanjingUniversityofScienceandTechnology,Nanjing210194,China)Abstract:Thereductionofgrapheneoxidehasbeenwidelyusedtocontrolthepropertiesofgraphene?basedmaterials.Traditionalmethodsthoroughlyremoveoxygenatedfunctionalgroupsingrapheneoxides.Weshowthatethanol,ethyleneglycolandglycerolcanse?lectivelyreduceepoxygroupsingrapheneoxidewhilehydroxylandcarboxylgroupsremainunchanged.Hydrazinehydratecanreduceox?ygenfunctionalgroupsexceptcarboxylgroups.Theseselectiveremovalscanbeusedtocontrolthereductiondegreeofgrapheneoxidesandtheirproperties.Theelectricalconductivityofthereducedgrapheneoxideswithdifferenttypesofoxygenfunctionalgroupsvariedsig?nificantlyandincreasedwiththedegreeofreduction.Keywords:Grapheneoxide;Oxygenatedfunctionalgroups;Alcohols;SelectivereductionCLCnumber:TQ127.1+1Documentcode:AReceiveddate:2022?07?10;Reviseddate:2022?12?22Correspondingauthor:XUChao,Ph.D,Lecturer.E?mail:cxu@https://www.sodocs.net/doc/0b175140101.htmlFoundationitems:NationalNaturalScienceFoundationofChina(21202236,21077023);NaturalScienceFoundationofFujianProvince(2022J01035,2022J01039).EnglisheditionavailableonlineScienceDirect(http:∕∕https://www.sodocs.net/doc/0b175140101.html∕science∕journal∕18735805).DOI:10.1016/S1873?5805(14)60126?81IntroductionGrapheneoxide(GO),utilizedasprecursorforalarge?scaleproductionofgraphene?basedmaterials,hasattractedagreatdealofattentioninrecentyears[1?5].GOsheetsareelectricallyinsulating,owingtotheiroxygenatedfunctionalgroups(hydroxyl,carboxylandepoxygroups)onsurface,whichusuallyneedfurthertreatmentstorestoretheelectricalconductivityforspe?cificapplications[6].Alotofmethods,suchaschemi?calreduction[7?9],laserirradiation[10,11],microwaveir?radiation[12,13],photocatalysis[14,15],solvothermalre?duction[16,17],havebeenexploredtoremovetheseatta?chedgroupsthoroughlyandtorecovergraphenenet?worksofsp2bonds.Actually,researchersrecentlyhavefoundthatthereductiondegreeofgrapheneoxideoroxidationdegreeofgraphenehascertaininfluencesontheirproperties,suchaselectricalconductivity,catalysisactivityandsemi?conductivebandpositions[18?20].Amongtheseresearchwork,thereductiondegreeof第29卷第1期2022年2月新型炭材料NEWCARBONMATERIALSVol.29No.1Feb.2022本文来源：网络收集与整理，如有侵权，请联系作者删除，谢谢！