M'zaka zingapo zapitazi, ma nembanemba a graphene oxide akhala akugwiritsidwa ntchito makamaka pochotsa mchere m'madzi a m'nyanja ndikulekanitsa utoto. Komabe, ma nembanemba amagwiritsidwa ntchito m'njira zosiyanasiyana, monga makampani azakudya.
Gulu lofufuza kuchokera ku Global Aquatic Innovation Center ku Shinshu University laphunzira momwe graphene oxide membranes imagwiritsidwira ntchito mu mkaka. Mtundu uwu wa membrane nthawi zambiri umapanga dothi lolimba (carbon, "Graphene oxide membranes for lactose-free milk" pa polymer membranes.).
Tsekani nembanemba ya graphene oxide yomwe imalowa mu lactose ndi madzi; siyani mafuta, mapuloteni ndi macromolecules mu mkaka.
Ma membrane a graphene oxide ali ndi ubwino wopanga zigawo zonyansa, kotero magwiridwe antchito awo osefedwa amatha kusungidwa bwino kuposa ma membrane a polymer amalonda. Kapangidwe kake kapadera komanso kapangidwe ka zigawo za membrane ya graphene oxide kumalola kuwonjezera kulowa kwa lactose ndi madzi, pomwe kumachotsa mafuta, mapuloteni ndi mchere wina. Chifukwa chake, kapangidwe kake, kukoma ndi zakudya za mkaka zitha kusungidwa bwino poyerekeza ndi mafilimu a polymer amalonda.
Chifukwa cha kapangidwe kake kapadera ka membrane wa fouling layer ndi graphene oxide, kuchuluka kwa lactose ndi lactose permeation flux kumakhala kwakukulu kwambiri kuposa kwa membrane wa nanofiltration wamalonda. Pogwiritsa ntchito membrane yothandizira yokhala ndi kukula kwa 1 μm ngati membrane wa graphene oxide, kuipitsidwa kosasinthika kumawonjezeka. Izi zimapangitsa kuti pakhale membrane wa fouling layer, zomwe zimathandiza kuti madzi abwererenso bwino mkaka ukasefedwa.
Powonetsa momwe imagwirira ntchito bwino poletsa kuipitsidwa kwa zinthu komanso kusankha bwino lactose, ntchito yoyambirira iyi ikuwonetsa kugwiritsa ntchito kwa graphene oxide membranes m'makampani ogulitsa chakudya, makamaka makampani opanga mkaka. Njirayi imasunga kuthekera kwakukulu kochotsa shuga m'zakumwa, pomwe imagwiritsa ntchito zosakaniza zina, motero imawonjezera thanzi lawo.
Mphamvu zambiri zoletsa kuipitsa za njira zosungiramo zinthu zachilengedwe (monga mkaka) zimapangitsa kuti ikhale chisankho chabwino kwambiri pa ntchito zina (monga kuyeretsa madzi otayira ndi kugwiritsa ntchito mankhwala). Gululi likukonzekera kupitiliza kufufuza momwe filimu ya graphene oxide imagwiritsidwira ntchito.
Ntchitoyi ikuchokera pa zotsatira za kafukufuku wakale wa gululo, zomwe ndi kupanga ma membrane a graphene oxide opopera ("NaCl yogwira ntchito komanso kukana utoto wa hybrid graphene oxide/graphene layered membranes") kuti madzi a m'nyanja achotsedwe mu nanotechnology yachilengedwe. Nembanembayo imasonyeza kukhazikika kwa mankhwala powonjezera zigawo zochepa za graphene, pomwe ikuwonetsa magwiridwe antchito okhazikika osefera patatha masiku asanu akugwira ntchito. Kuphatikiza apo, njira yopopera ndi yabwino kwambiri pankhani ya kukula.
Powonetsa momwe imagwirira ntchito bwino poletsa kuipitsidwa kwa zinthu komanso kusankha bwino lactose, ntchito yoyambirira iyi ikuwonetsa kugwiritsa ntchito kwa graphene oxide membranes m'makampani ogulitsa chakudya, makamaka makampani opanga mkaka. Njirayi imasunga kuthekera kwakukulu kochotsa shuga m'zakumwa, pomwe imagwiritsa ntchito zosakaniza zina, motero imawonjezera thanzi lawo.
Mphamvu zambiri zoletsa kuipitsa za njira zosungiramo zinthu zachilengedwe (monga mkaka) zimapangitsa kuti ikhale chisankho chabwino kwambiri pa ntchito zina (monga kuyeretsa madzi otayira ndi kugwiritsa ntchito mankhwala). Gululi likukonzekera kupitiliza kufufuza momwe filimu ya graphene oxide imagwiritsidwira ntchito.
Ntchitoyi ikuchokera pa zotsatira za kafukufuku wakale wa gululo, zomwe ndi kupanga ma membrane a graphene oxide opopera ("NaCl yogwira ntchito komanso kukana utoto wa hybrid graphene oxide/graphene layered membranes") kuti madzi a m'nyanja achotsedwe mu nanotechnology yachilengedwe. Nembanembayo imasonyeza kukhazikika kwa mankhwala powonjezera zigawo zochepa za graphene, pomwe ikuwonetsa magwiridwe antchito okhazikika osefera patatha masiku asanu akugwira ntchito. Kuphatikiza apo, njira yopopera ndi yabwino kwambiri pankhani ya kukula.
Nthawi yotumizira: Julayi-20-2021
