Indlela yeekhemikhali iqala i-oxidize igraphite ibe yigraphite oxide nge-oxidation reaction, kwaye yandisa isithuba somaleko ngokuzisa ioksijini equlethe amaqela asebenzayo kwiiathom zekhabhoni phakathi kwamaleko egraphite, ngaloo ndlela yenze buthathaka intsebenziswano phakathi kwamaleya.

I-oxidation eqhelekileyo

Iindlela ziquka indlela ye-Brodie, indlela ye-Staudenmaier kunye nendlela ye-Hummers [40].Umgaqo kukuphatha igraphite ngeasidi eyomeleleyo kuqala,

Emva koko yongeza i-oxidant eyomeleleyo ye-oxidation.

Igraphite ene-oxidized ihluthwe yi-ultrasonic ukwenza i-graphene oxide, kwaye iyancipha ngokongeza i-agent yokunciphisa ukufumana i-graphene.

Iiarhente zokunciphisa eziqhelekileyo ziquka i-hydrazine hydrate, i-NaBH4 kunye nokunciphisa i-alkali ultrasonic enamandla.I-NaBH4 iyabiza kwaye kulula ukuyigcina isiqalelo B,

Nangona ukunciphisa okunamandla kwe-alkali ultrasonic kulula kwaye kuhambelana nokusingqongileyo, kunzima ukunciphisa *, kwaye inani elikhulu lamaqela asebenzayo oksijini aya kuhlala emva kokunciphisa,

Ngoko ke, i-hydrazine hydrate enexabiso eliphantsi idla ngokusetyenziselwa ukunciphisa i-graphite oxide.Inzuzo yokunciphisa i-hydrazine hydrate kukuba i-hydrazine hydrate inamandla okunciphisa amandla kwaye ilula ukuguquguquka, ngoko akuyi kubakho ukungcola okusele kwimveliso.Kwinkqubo yokunciphisa, isixa esifanelekileyo samanzi e-ammonia sihlala songezwa ukuphucula amandla okunciphisa i-hydrazine hydrate,

Kwelinye icala, inokwenza imiphezulu yegraphene igxothane ngenxa yeentlawulo ezimbi, ngaloo ndlela inciphisa i-agglomeration yegraphene.

Ukulungiswa komlinganiselo omkhulu wegraphene kunokuphunyezwa nge-chemical oxidation kunye nendlela yokunciphisa, kwaye imveliso ephakathi yegraphene oxide inokusasazwa kakuhle emanzini,

Kulula ukuyiguqula kwaye isebenze igraphene, ngoko le ndlela isetyenziswa rhoqo kuphando lwezinto ezidibeneyo kunye nokugcinwa kwamandla.Kodwa ngenxa ye-oxidation

Ukungabikho kwezinye iiathomu zekhabhoni kwinkqubo ye-ultrasonic kunye nentsalela yamaqela asebenzayo aqukethe i-oksijini kwinkqubo yokunciphisa kaninzi yenza ukuba i-graphene eveliswayo iqulethe iziphene ezingaphezulu, ezinciphisa ukuhanjiswa kwayo, ngaloo ndlela kunciphisa ukusetyenziswa kwayo kwintsimi yegraphene kunye neemfuno eziphezulu. .