Hauv ob peb xyoos dhau los, graphene oxide membranes tau siv los ua dej hiav txwv desalination thiab dye cais.Txawm li cas los xij, cov membranes muaj ntau yam kev siv, xws li kev lag luam khoom noj.
Ib pab neeg tshawb fawb los ntawm Lub Ntiaj Teb Aquatic Innovation Center ntawm Shinshu University tau kawm txog kev siv graphene oxide membranes hauv cov mis nyuj.Hom membrane no feem ntau tsim cov av ntom ntom (carbon, "Graphene oxide membranes rau mis nyuj tsis muaj lactose" ntawm cov ntaub ntawv polymer. ).
Kaw cov graphene oxide membrane permeated los ntawm lactose thiab dej;tawm cov rog, proteins thiab macromolecules hauv cov mis nyuj.
Graphene oxide daim nyias nyias muaj qhov zoo ntawm kev ua cov txheej txheem porous fouling, yog li lawv cov kev pom zoo tuaj yeem tswj tau zoo dua li cov khoom lag luam polymer.Qhov tshwj xeeb chemistry thiab txheej txheej txheej ntawm graphene oxide membrane tso cai rau txhim khu kev nkag mus ntawm lactose thiab dej, thaum tshem tawm cov rog, protein thiab qee cov zaub mov.Yog li ntawd, kev ntxhib los mos, tsw thiab khoom noj muaj txiaj ntsig ntawm mis nyuj tuaj yeem khaws cia zoo dua piv nrog cov yeeb yaj kiab ua lag luam polymer.
Vim yog cov txheej txheem tshwj xeeb ntawm cov ntxeem tau fouling txheej thiab graphene oxide membrane, qhov concentration ntawm lactose thiab lactose permeation flux yog ntau dua li cov khoom lag luam nanofiltration membranes.Los ntawm kev siv ib daim nyias nyias nrog lub pore loj ntawm 1 μm raws li graphene oxide membrane, irreversible contamination yog zoo dua.Qhov no ua rau tsim cov txheej txheem fouling, uas ua rau muaj kev rov qab zoo dua ntawm cov dej ntws tom qab cov kua mis lim.
Qhia txog nws txoj kev ua haujlwm zoo heev thiab kev xaiv siab rau lactose, qhov kev ua haujlwm pioneer no qhia txog kev siv graphene oxide membranes hauv kev lag luam khoom noj, tshwj xeeb tshaj yog cov khoom noj siv mis.Txoj kev no khaws cov peev txheej zoo ntawm kev tshem cov piam thaj los ntawm cov dej haus, thaum khaws lwm cov khoom xyaw, yog li ua rau lawv cov khoom noj muaj txiaj ntsig.
Lub siab antifouling zog ntawm cov organic-nplua nuj daws (xws li mis nyuj) ua rau nws kuj yog ib qho kev xaiv zoo tshaj plaws rau lwm yam kev siv (xws li kev kho dej khib nyiab thiab kev siv tshuaj kho mob).Cov pab pawg npaj yuav txuas ntxiv mus tshawb nrhiav daim ntawv thov ntawm graphene oxide zaj duab xis.
Txoj haujlwm no yog ua raws li cov kev tshawb fawb yav dhau los ntawm pab pawg, uas yog tsim cov tshuaj tsuag graphene oxide membranes ("NaCl zoo thiab dye rejection ntawm hybrid graphene oxide / graphene txheej membranes") rau seawater desalination nyob rau hauv ntuj nanotechnology.Lub daim nyias nyias qhia txog kev ruaj ntseg tshuaj ntxiv los ntawm kev ntxiv ob peb txheej ntawm graphene, thaum ua kom pom kev ruaj khov tom qab tsib hnub ua haujlwm.Tsis tas li ntawd, txoj kev tshuaj tsuag deposition zoo heev nyob rau hauv cov nqe lus ntawm scalability.
Qhia txog nws txoj kev ua haujlwm zoo heev thiab kev xaiv siab rau lactose, qhov kev ua haujlwm pioneer no qhia txog kev siv graphene oxide membranes hauv kev lag luam khoom noj, tshwj xeeb tshaj yog cov khoom noj siv mis.Txoj kev no khaws cov peev txheej zoo ntawm kev tshem cov piam thaj los ntawm cov dej haus, thaum khaws lwm cov khoom xyaw, yog li ua rau lawv cov khoom noj muaj txiaj ntsig.
Lub siab antifouling zog ntawm cov organic-nplua nuj daws (xws li mis nyuj) ua rau nws kuj yog ib qho kev xaiv zoo tshaj plaws rau lwm yam kev siv (xws li kev kho dej khib nyiab thiab kev siv tshuaj kho mob).Cov pab pawg npaj yuav txuas ntxiv mus tshawb nrhiav daim ntawv thov ntawm graphene oxide zaj duab xis.
Txoj haujlwm no yog ua raws li cov kev tshawb fawb yav dhau los ntawm pab pawg, uas yog tsim cov tshuaj tsuag graphene oxide membranes ("NaCl zoo thiab dye rejection ntawm hybrid graphene oxide / graphene txheej membranes") rau seawater desalination nyob rau hauv ntuj nanotechnology.Lub daim nyias nyias qhia txog kev ruaj ntseg tshuaj ntxiv los ntawm kev ntxiv ob peb txheej ntawm graphene, thaum ua kom pom kev ruaj khov tom qab tsib hnub ua haujlwm.Tsis tas li ntawd, txoj kev tshuaj tsuag deposition zoo heev nyob rau hauv cov nqe lus ntawm scalability.
Post lub sij hawm: Lub Xya hli ntuj-20-2021