Iqembu labacwaningi base-Curtin University, i-University of Western Australia, kanye ne-China University of Geoscience bathole ukuthi amanani amancane egolide angavaleleka.ngaphakathi pyrite, okwenza ‘igolide lesiwula’ libe yigugu ngaphezu kwalokho okusikiselwa yigama lalo.
Kuiphephaeshicilelwe kujenaliI-Geology,ososayensi bethula ukuhlaziya okujulile ukuze baqonde kangcono indawo ye-mineralogical yegolide elivalelekile ku-pyrite.Lokhu kubuyekezwa - bakholelwa ukuthi - kungase kuholele ezindleleni zokukhipha igolide ezivumelana nemvelo.
Ngokusho kweqembu, lolu hlobo olusha lwegolide 'elingabonakali' belungakaze lubonwe ngaphambili futhi lubonakala kuphela kusetshenziswa ithuluzi lesayensi elibizwa ngokuthi i-athomu probe.
Ngaphambilini abakhipha igolide bebekwazi ukuthola igolide kuloi-pyritekungaba njengama-nanoparticles noma njengengxube yegolide ye-pyrite, kodwa esikutholile ukuthi igolide lingabuye lisingathwe ngokukhubazeka kwe-nanoscale crystal, emele uhlobo olusha lwegolide 'elingabonakali'," kusho umcwaningi oholayo uDenis Fougerous esitatimendeni sabezindaba.
NgokukaFougerouse, lapho ikristalu igogeke kakhulu, igolide livaleka lingenasici.
Usosayensi wachaza ukuthi igolide liphethwe ukukhubazeka kwe-nanoscale okubizwa ngokuthi ama-dislocations - amancane aphindwe kazinkulungwane eziyikhulu kunobubanzi bezinwele zomuntu - futhi yingakho lingabonwa kuphela kusetshenziswa i-athomu probe tomography.
Ngemva kokutholakala kwabo, u-Fougerous nozakwabo banquma ukubheka inqubo eyayibavumela ukuba bakhiphe insimbi eyigugu besebenzisa amandla amancane kunamasu okuvamile okucindezela i-oxidizing.
I-leaching ekhethiwe, ehlanganisa ukusebenzisa uketshezi ukuze ukhethe ngokukhetha igolide elivela ku-pyrite, kubonakala kuyisinqumo esingcono kakhulu.
“Ukususwa akugcini nje ngokubamba igolide, kodwa futhi kuziphatha njengezindlela eziwuketshezi ezenza igolide ‘lingene’ ngaphandle kokuthinta i-pyrite yonke,” kusho umcwaningi.
Isikhathi sokuthumela: Jun-29-2021