Indlela yamakhemikhali iqala i-oxidize i-graphite ibe yi-graphite oxide ngokusabela kwe-oxidation, futhi ikhuphule isikhala sesendlalelo ngokwethula umoya-mpilo oqukethe amaqembu asebenzayo kuma-athomu ekhabhoni phakathi kwezingqimba zegraphite, ngaleyo ndlela yenza buthaka ukusebenzisana phakathi kwezingqimba.

I-oxidation evamile

Izindlela zifaka indlela ye-Brodie, indlela ye-Staudenmaier kanye nendlela ye-Hummers [40].Umgomo uwukuphatha i-graphite nge-asidi eqinile kuqala,

Bese wengeza i-oxidant eqinile ye-oxidation.

I-graphite ene-oxidized ikhishwa yi-ultrasonic ukuze yakhe i-graphene oxide, bese iyancipha ngokungeza i-ejenti yokunciphisa ukuthola i-graphene.

Ama-ejenti okunciphisa ajwayelekile ahlanganisa i-hydrazine hydrate, i-NaBH4 kanye nokunciphisa okunamandla kwe-alkali ultrasonic.I-NaBH4 iyabiza futhi kulula ukuyigcina i-elementi B,

Nakuba ukunciphisa okuqinile kwe-alkali ultrasonic kulula futhi kuhambisana nemvelo, kunzima ukunciphisa *, futhi inani elikhulu lamaqembu asebenzayo oksijini lizohlala ngemva kokunciphisa,

Ngakho-ke, i-hydrazine hydrate eshibhile ivame ukusetshenziselwa ukunciphisa i-graphite oxide.Inzuzo yokunciphisa i-hydrazine hydrate yukuthi i-hydrazine hydrate inamandla okunciphisa amandla futhi kulula ukuvuthwa, ngakho-ke ngeke kube khona ukungcola okusele emkhiqizweni.Enqubweni yokunciphisa, inani elifanele lamanzi e-ammonia ngokuvamile liyengezwa ukuze kuthuthukiswe ikhono lokunciphisa i-hydrazine hydrate,

Ngakolunye uhlangothi, ingenza indawo engaphezulu ye-graphene ixoshene ngenxa yezindleko ezingezinhle, ngaleyo ndlela yehlise i-agglomeration ye-graphene.

Ukulungiswa kwesilinganiso esikhulu se-graphene kungenziwa nge-oxidation yamakhemikhali kanye nendlela yokunciphisa, futhi umkhiqizo ophakathi nendawo i-graphene oxide unokuhlakazeka okuhle emanzini,

Kulula ukuyishintsha futhi isebenze i-graphene, ngakho le ndlela ivame ukusetshenziswa ocwaningweni lwezinto eziyinhlanganisela nokugcinwa kwamandla.Kodwa ngenxa ye-oxidation

Ukungabikho kwamanye ama-athomu e-carbon enqubweni ye-ultrasonic kanye nezinsalela zamaqembu asebenzayo aqukethe umoya-mpilo ohlelweni lokunciphisa ngokuvamile kwenza i-graphene ekhiqizwayo ibe nokukhubazeka okwengeziwe, okunciphisa ukuqhutshwa kwayo, ngaleyo ndlela kunciphise ukusetshenziswa kwayo emkhakheni we-graphene ngezidingo zekhwalithi ephezulu. .