Iqela labaphandi abavela kwiYunivesithi yaseCurtin, iYunivesithi yaseNtshona Ostreliya, kunye neYunivesithi yaseChina yeGeoscience baye bafumanisa ukuba izixa ezincinane zegolide zinokubanjwa.ngaphakathi kwepyrite, ukwenza ‘igolide yesidenge’ ixabiseke ngaphezu kokuba igama layo lisitsho.
Kwiiphephaipapashwe kwijenaliIjoloji,izazinzulu zibonisa uhlalutyo olunzulu ukuqonda ngcono indawo mineralogical yegolide evaleleke kwipyrite.Olu phononongo - bakholelwa ukuba - lunokukhokelela kwiindlela zokutsalwa kwegolide ezihambelana nokusingqongileyo.
Ngokutsho kweqela, olu hlobo lutsha lwegolide 'engabonakaliyo' aluzange lubonwe ngaphambili kwaye lubonwa kuphela kusetyenziswa isixhobo senzululwazi esibizwa ngokuba yi-atom probe.
Ngaphambili ii-extractors zegolide bezikwazi ukufumana igolide kuyoipyritemhlawumbi njenge-nanoparticles okanye njenge-alloy yegolide ye-pyrite, kodwa into esiyifumeneyo kukuba igolide nayo inokubanjwa kwii-nanoscale crystal defects, emele uhlobo olutsha lwegolide 'engabonakaliyo', "umphandi okhokelayo uDenis Fougerouse uthe kwingxelo yeendaba.
Ngokutsho kukaFougerous, okukhona ikristale inkeneke ngakumbi, kokukhona igolide ivalelwa kwindawo eneziphene.
Isazinzulu sachaza ukuba igolide igcinwe kwiziphene ze-nanoscale ezibizwa ngokuba yi-dislocation - ikhulu lamawaka eliphindwe kabini kunobubanzi beenwele zomntu - kwaye kungenxa yoko le nto inokujongwa kuphela kusetyenziswa i-atom probe tomography.
Ukulandela ukufunyanwa kwabo, uFougerouse kunye noogxa bakhe bagqibe kwelokuba bajonge inkqubo eyabavumela ukuba bakhuphe intsimbi exabisekileyo besebenzisa amandla angaphantsi kuneendlela zoxinzelelo lwendalo oxidizing.
I-leaching ekhethiweyo, ebandakanya ukusebenzisa ulwelo lokunyibilikisa ngokukhethiweyo igolide kwi-pyrite, kubonakala ngathi yeyona nto ilungileyo.
Umphandi uthe: “Akupheleli nje ekugxothweni kubambe igolide, kodwa kukwaziphatha njengemizila yolwelo eyenza ukuba igolide ‘ibizwe’ ngaphandle kokuchaphazela yonke ipyrite.
Ixesha lokuposa: Jun-29-2021