Amafilimu ekhabhoni afana ne-graphene alula kakhulu kodwa aqinile kakhulu anamandla amahle kakhulu okusebenza, kodwa kungase kube nzima ukuwenza, ngokuvamile adinga amandla amaningi kanye namasu adla isikhathi, futhi izindlela ziyabiza futhi azihambisani nemvelo.
Ngokukhiqizwa kwenani elikhulu le-graphene, ukuze kunqotshwe ubunzima okuhlangenwe nakho ekusebenziseni izindlela zamanje zokukhipha, abacwaningi base-Ben Gurion University yaseNegev kwa-Israel baye basungula indlela yokukhipha i-graphene “eluhlaza” engasetshenziswa ku-A ububanzi obubanzi. emikhakheni ehlanganisa i-Optics, electronics, ecology kanye ne-biotechnology.
Abacwaningi basebenzisa ukuhlakazeka kwemishini ukuze bakhiphe i-graphene ku-striolite yemvelo yamaminerali.Bathole ukuthi i-mineral hypophyllite ikhombisa amathuba amahle ekukhiqizeni i-graphene yesikali sezimboni nezinto ezifana ne-graphene.
Okuqukethwe kwekhabhoni ye-hypomphibole kungase kuhluke.Ngokusho kokuqukethwe kwekhabhoni, i-hypomphibole ingaba namandla okusebenza ahlukene.Ezinye izinhlobo zingase zisetshenziselwe izici zazo zokuvuselela, kanti ezinye izinhlobo zinezindawo ezibulala amagciwane.
Izici zesakhiwo se-hypopyroxene zinquma ukusetshenziswa kwazo enqubweni yokunciphisa i-oxidation, futhi ingasetshenziselwa ukukhiqizwa kwesithando somlilo kanye nokukhiqizwa kwe-ferroalloy yensimbi ephonsiwe (i-silicon ephezulu).
Ngenxa yezakhiwo zayo ezingokomzimba nemishini, ukuminyana kwenqwaba, amandla amahle nokumelana nokugqoka, i-hypophyllite nayo inamandla okukhangisa izinto ezihlukahlukene eziphilayo, ngakho-ke ingasetshenziswa ngempela njengento yokuhlunga.Iphinde yabonisa amandla okuqeda izinhlayiya zama-radical mahhala ezingase zingcolise imithombo yamanzi.
I-hypopyroxene ibonisa amandla okubulala amagciwane kanye nokuhlanza amanzi kumagciwane, ezinhlamvu, ama-microorganisms alula kanye nolwelwe oluluhlaza okwesibhakabhaka.Ngenxa yezakhiwo zayo eziphakeme ze-catalytic kanye nokunciphisa, i-magnesia ivame ukusetshenziswa njenge-adsorbent yokuhlanza amanzi angcolile.
(a) Ukukhulisa i-X13500 kanye (b) nesithombe se-TEM esingu-X35000 sokukhulisa isampula ye-hypophyllite ehlakaziwe.(c) I-Raman spectrum ye-hypophyllite ephathwayo kanye (d) ne-XPS spectrum ye-carbon line ku-hypophyllite spectrum
Ukukhishwa kwe-graphene
Ukuze kulungiswe amatshe ukuze kukhishwe i-graphene, laba ababili basebenzisa isibonakhulu se-electron yokuskena (SEM) ukuze bahlole ukungcola kwensimbi esindayo kanye nokuqina kwamasampula.Baphinde basebenzisa ezinye izindlela zaselabhorethri ukuhlola ukwakheka kwesakhiwo jikelele kanye nokuba khona kwamanye amaminerali ku-hypomphibole.
Ngemuva kokuhlaziywa kwesampula nokulungiswa sekuqediwe, abacwaningi bakwazi ukukhipha i-graphene ku-diorite ngemva kokucubungula isampula kusuka ku-Karelia usebenzisa isicoci se-digital ultrasonic.
Njengoba inani elikhulu lamasampula lingacutshungulwa kusetshenziswa le ndlela, ayikho ingozi yokungcola kwesibili, futhi izindlela zokucubungula isampula ezilandelayo azidingeki.
Njengoba izici ezingavamile ze-graphene zaziwa kabanzi emphakathini obanzi wocwaningo lwesayensi, izindlela eziningi zokukhiqiza nezindlela zokuhlanganisa sezenziwe.Kodwa-ke, eziningi zalezi zindlela ziyizinqubo zezinyathelo eziningi noma zidinga ukusetshenziswa kwamakhemikhali kanye nama-oxidizing aqinile nama-ejenti anciphisayo.
Nakuba i-graphene namanye amafilimu ekhabhoni abonise amandla amakhulu okusebenza futhi azuza impumelelo ehlobene ye-R&D, izinqubo ezisebenzisa lezi zinto zisathuthukiswa.Ingxenye yenselelo iwukwenza ukukhishwa kwe-graphene kungabizi, okusho ukuthi ukuthola ubuchwepheshe obufanele bokusabalalisa kuwukhiye.
Le ndlela yokuhlakazeka noma yokuhlanganiswa iyasebenza futhi ayihambisani nemvelo, futhi amandla alobu buchwepheshe angabangela nokukhubazeka ku-graphene ekhiqizwayo, ngaleyo ndlela kwehlise ikhwalithi enhle kakhulu elindelwe ye-graphene.
Ukusetshenziswa kokuhlanza kwe-ultrasonic ku-graphene synthesis kuqeda izingozi nezindleko ezihambisana nezindlela eziningi zezinyathelo nezindlela zamakhemikhali.Ukusebenzisa le ndlela ku-hypophyllite yamaminerali yemvelo kwavula indlela yendlela entsha evumelana nemvelo yokukhiqiza i-graphene.
Isikhathi sokuthumela: Nov-04-2021