Kwiminyaka embalwa edlulileyo, ii-membrane ze-graphene oxide bezisetyenziswa kakhulu ekususeni ityuwa emanzini olwandle nasekuhlukaniseni idayi. Nangona kunjalo, ii-membrane zineendlela ezahlukeneyo zokusetyenziswa, ezifana neshishini lokutya.
Iqela lophando elivela kwiZiko leGlobal Aquatic Innovation kwiYunivesithi yaseShinshu lifunde ukusetyenziswa kwee-graphene oxide membranes kubisi. Olu hlobo lwe-membrane ludla ngokwenza umaleko wothuli oluxineneyo (i-carbon, “ii-Graphene oxide membranes zobisi olungena-lactose” kwii-polymer membranes.).
Vala i-membrane ye-graphene oxide ezaliswe yi-lactose namanzi; shiya amafutha, iiproteni kunye nee-macromolecules kubisi.
Iimembrane ze-graphene oxide zinenzuzo yokuvelisa iileya ezinemingxuma, ngoko ke ukusebenza kwazo kokuhluza kunokugcinwa ngcono kuneemembrane ze-polymer zorhwebo. Ikhemistri ekhethekileyo kunye nolwakhiwo oluneeleya zemembrane ye-graphene oxide kuvumela ukonyusa ukungena kwe-lactose namanzi, ngelixa kugxotha amafutha, iiproteni kunye neeminerali ezithile. Ke ngoko, ubume, incasa kunye nexabiso lesondlo lobisi kunokugcinwa ngcono xa kuthelekiswa neefilimu ze-polymer zorhwebo.
Ngenxa yesakhiwo esikhethekileyo somaleko we-porous fouling layer kunye ne-graphene oxide membrane, uxinaniso lwe-lactose kunye ne-lactose permeation flux luphezulu kakhulu kunolo lwe-commercial nanofiltration membranes. Ngokusebenzisa i-support membrane enobukhulu be-pore obuyi-1 μm njenge-graphene oxide membrane, ungcoliseko olungenakuguqulwa luyaphucuka. Oku kukhokelela ekwakhiweni komaleko we-porous fouling, okuvumela izinga eliphezulu lokubuyisela amanzi emva kokuba ubisi luhluziwe.
Igxininisa ukusebenza kwayo okuhle kakhulu ekuthinteleni ukungcola kunye nokukhetha okuphezulu kwe-lactose, lo msebenzi wokuqala ubonisa ukusetyenziswa kwee-membranes ze-graphene oxide kwishishini lokutya, ingakumbi kwishishini lobisi. Le ndlela igcina amandla amakhulu okususa iswekile kwiziselo, ngelixa igcina ezinye izithako, ngaloo ndlela inyusa ixabiso lazo lesondlo.
Iipropati eziphezulu zokuthintela ukungcola kwezisombululo ezityebileyo kwizinto eziphilayo (ezifana nobisi) zenza ukuba ibe lolona khetho lufanelekileyo kwezinye izinto (ezifana nonyango lwamanzi amdaka kunye nezicelo zonyango). Eli qela liceba ukuqhubeka nokuhlola ukusetyenziswa kwefilimu ye-graphene oxide.
Lo msebenzi usekelwe kwiziphumo zophando zangaphambili zeqela, oko kukuthi ukudalwa kwee-membrane ze-graphene oxide ezitshiziweyo (“I-NaCl esebenzayo kunye nokulahlwa kwedayi ye-hybrid graphene oxide/graphene layered membranes”) ukuze kususwe ityuwa emanzini olwandle kwi-nanotechnology yendalo. I-membrane ibonisa uzinzo oluphuculweyo lweekhemikhali ngokongeza iileya ezimbalwa ze-graphene, ngelixa ibonisa ukusebenza okuzinzileyo kokuhluza emva kweentsuku ezintlanu zokusebenza. Ukongeza, indlela yokufaka isitshizi ithembisa kakhulu ngokubhekiselele ekukhuleni.
Igxininisa ukusebenza kwayo okuhle kakhulu ekuthinteleni ukungcola kunye nokukhetha okuphezulu kwe-lactose, lo msebenzi wokuqala ubonisa ukusetyenziswa kwee-membranes ze-graphene oxide kwishishini lokutya, ingakumbi kwishishini lobisi. Le ndlela igcina amandla amakhulu okususa iswekile kwiziselo, ngelixa igcina ezinye izithako, ngaloo ndlela inyusa ixabiso lazo lesondlo.
Iipropati eziphezulu zokuthintela ukungcola kwezisombululo ezityebileyo kwizinto eziphilayo (ezifana nobisi) zenza ukuba ibe lolona khetho lufanelekileyo kwezinye izinto (ezifana nonyango lwamanzi amdaka kunye nezicelo zonyango). Eli qela liceba ukuqhubeka nokuhlola ukusetyenziswa kwefilimu ye-graphene oxide.
Lo msebenzi usekelwe kwiziphumo zophando zangaphambili zeqela, oko kukuthi ukudalwa kwee-membrane ze-graphene oxide ezitshiziweyo (“I-NaCl esebenzayo kunye nokulahlwa kwedayi ye-hybrid graphene oxide/graphene layered membranes”) ukuze kususwe ityuwa emanzini olwandle kwi-nanotechnology yendalo. I-membrane ibonisa uzinzo oluphuculweyo lweekhemikhali ngokongeza iileya ezimbalwa ze-graphene, ngelixa ibonisa ukusebenza okuzinzileyo kokuhluza emva kweentsuku ezintlanu zokusebenza. Ukongeza, indlela yokufaka isitshizi ithembisa kakhulu ngokubhekiselele ekukhuleni.
Ixesha lokuthumela: Julayi-20-2021
