Eminyakeni embalwa edlule, ulwelwesi lwe-graphene oxide luye lwasetshenziswa kakhulu ekukhipheni usawoti emanzini olwandle kanye nokuhlukanisa udayi.Nokho, ulwelwesi lunezinhlobonhlobo zezinto ezisetshenziswayo, njengemboni yokudla.
Ithimba labacwaningi abavela ku-Global Aquatic Innovation Centre yase-Shinshu University lifunde ngokusetshenziswa kwezingqimba ze-graphene oxide obisini.Lolu hlobo lwelwelwesi ngokuvamile lwakha ungqimba oluminyene lokungcola (ikhabhoni, “ulwelwesi lwe-graphene oxide lobisi olungenayo i-lactose” kulwelwesi lwe-polymer. ).
Vala ulwelwesi lwe-graphene oxide olufakwe i-lactose namanzi;shiya amafutha, amaprotheni nama-macromolecules obisini.
I-graphene oxide membranes inenzuzo yokukhiqiza izendlalelo ezinezimbotshana ezingcolile, ngakho ukusebenza kwazo kokuhlunga kungagcinwa kangcono kunolwelwesi lwe-polymer yokuhweba.I-chemistry eyingqayizivele kanye nesakhiwo esinezingqimba ze-graphene oxide membrane kuvumela ukukhulisa ukungena kwe-lactose namanzi, kuyilapho kuxosha amafutha, amaprotheni namanye amaminerali.Ngakho-ke, ukuthungwa, ukunambitheka kanye nenani lokudla okunempilo kobisi kungalondolozwa kangcono uma kuqhathaniswa namafilimu e-polymer yokuhweba.
Ngenxa yokwakheka kwezingqimba eziyingqayizivele zongqimba olunezimbotshana ezinezimbotshana kanye nolwelwesi lwe-graphene oxide, ukugcwala kwe-lactose ne-lactose permeation flux kuphezulu kakhulu kunolwelwesi lwe-nanofiltration lwezentengiselwano.Ngokusebenzisa ulwelwesi olusekelayo olunosayizi wembotshana ongu-1 μm njengolwelwesi lwe-graphene oxide, ukungcoliswa okungenakuguqulwa kuyathuthukiswa.Lokhu kuholela ekwakhekeni kwesendlalelo esinezimbotshana ezingcolisayo, okuvumela izinga eliphezulu lokubuyisela ukugeleza kwamanzi ngemva kokuba ubisi luhlungiwe.
Iqokomisa ukusebenza kwayo okuhle kakhulu kwe-antifouling kanye nokukhetha okuphezulu kwe-lactose, lo msebenzi wokuphayona ubonisa ukusetshenziswa kwe-graphene oxide membranes embonini yokudla, ikakhulukazi imboni yobisi.Le ndlela igcina amandla amakhulu okukhipha ushukela eziphuzweni, kuyilapho igcina ezinye izithako, ngaleyo ndlela ikhulise inani lazo lokudla okunomsoco.
Izakhiwo eziphakeme zokunqanda ukungcoliswa kwezixazululo ze-organic-rich (ezifana nobisi) zikwenza kube ukukhetha okuhle kwezinye izinhlelo zokusebenza (ezifana nokuhlanza amanzi angcolile kanye nezicelo zezokwelapha).Iqembu lihlela ukuqhubeka nokuhlola ukusetshenziswa kwefilimu ye-graphene oxide.
Lo msebenzi usekelwe emiphumeleni yocwaningo yangaphambilini yeqembu, okuwukuthi ukwakhiwa kwezingqimba ze-graphene oxide ezifuthwe (“I-NaCl ephumelelayo nokwenqatshwa kodayi we-hybrid graphene oxide/graphene layered membranes”) ukuze kukhishwe usawoti emanzini olwandle ku-nanotechnology yemvelo.Ulwelwesi lubonisa ukuzinza okuthuthukisiwe kwamakhemikhali ngokwengeza izendlalelo ezimbalwa ze-graphene, kuyilapho kubonisa ukusebenza kokuhlunga okuzinzile ngemva kwezinsuku ezinhlanu zokusebenza.Ngaphezu kwalokho, indlela yokufaka isifutho ithembisa kakhulu mayelana nokuqina.
Iqokomisa ukusebenza kwayo okuhle kakhulu kwe-antifouling kanye nokukhetha okuphezulu kwe-lactose, lo msebenzi wokuphayona ubonisa ukusetshenziswa kwe-graphene oxide membranes embonini yokudla, ikakhulukazi imboni yobisi.Le ndlela igcina amandla amakhulu okukhipha ushukela eziphuzweni, kuyilapho igcina ezinye izithako, ngaleyo ndlela ikhulise inani lazo lokudla okunomsoco.
Izakhiwo eziphakeme zokunqanda ukungcoliswa kwezixazululo ze-organic-rich (ezifana nobisi) zikwenza kube ukukhetha okuhle kwezinye izinhlelo zokusebenza (ezifana nokuhlanza amanzi angcolile kanye nezicelo zezokwelapha).Iqembu lihlela ukuqhubeka nokuhlola ukusetshenziswa kwefilimu ye-graphene oxide.
Lo msebenzi usekelwe emiphumeleni yocwaningo yangaphambilini yeqembu, okuwukuthi ukwakhiwa kwezingqimba ze-graphene oxide ezifuthwe (“I-NaCl ephumelelayo nokwenqatshwa kodayi we-hybrid graphene oxide/graphene layered membranes”) ukuze kukhishwe usawoti emanzini olwandle ku-nanotechnology yemvelo.Ulwelwesi lubonisa ukuzinza okuthuthukisiwe kwamakhemikhali ngokwengeza izendlalelo ezimbalwa ze-graphene, kuyilapho kubonisa ukusebenza kokuhlunga okuzinzile ngemva kwezinsuku ezinhlanu zokusebenza.Ngaphezu kwalokho, indlela yokufaka isifutho ithembisa kakhulu mayelana nokuqina.
Isikhathi sokuthumela: Jul-20-2021