Ob peb xyoos dhau los no, cov graphene oxide membranes feem ntau yog siv rau kev tshem dej hiav txwv thiab kev sib cais xim. Txawm li cas los xij, cov membranes muaj ntau yam kev siv, xws li kev lag luam zaub mov.
Ib pab pawg tshawb fawb los ntawm Global Aquatic Innovation Center ntawm Shinshu University tau kawm txog kev siv cov graphene oxide membranes hauv mis nyuj. Hom membrane no feem ntau tsim cov av nplaum (carbon, "Graphene oxide membranes rau lactose-free milk" ntawm polymer membranes.).
Kaw lub graphene oxide membrane uas permeated los ntawm lactose thiab dej; tso cov rog, cov protein thiab macromolecules hauv cov mis nyuj.
Cov ntaub graphene oxide muaj qhov zoo ntawm kev tsim cov txheej porous fouling, yog li lawv cov kev ua haujlwm lim dej tuaj yeem tswj tau zoo dua li cov ntaub polymer lag luam. Cov tshuaj lom neeg tshwj xeeb thiab cov qauv txheej ntawm cov ntaub graphene oxide tso cai rau kev nkag mus ntawm lactose thiab dej, thaum tiv thaiv cov rog, protein thiab qee cov minerals. Yog li ntawd, cov qauv, saj thiab cov khoom noj khoom haus ntawm mis nyuj tuaj yeem khaws cia zoo dua piv rau cov ntaub polymer lag luam.
Vim yog cov qauv txheej txheem tshwj xeeb ntawm cov txheej porous fouling thiab graphene oxide membrane, qhov concentration ntawm lactose thiab lactose permeation flux yog siab dua li ntawm cov nanofiltration membranes lag luam. Los ntawm kev siv cov membrane txhawb nqa nrog qhov loj me ntawm 1 μm ua graphene oxide membrane, kev ua qias tuaj yeem rov qab tau zoo dua. Qhov no ua rau muaj cov txheej porous fouling, uas ua rau muaj kev rov qab zoo dua ntawm cov dej ntws tom qab cov mis nyuj raug lim.
Qhov kev tshawb fawb no qhia txog nws txoj kev ua haujlwm zoo heev rau kev tiv thaiv kev ua qias tuaj thiab kev xaiv cov lactose zoo, qhia txog kev siv cov graphene oxide membranes hauv kev lag luam zaub mov, tshwj xeeb tshaj yog kev lag luam mis nyuj. Txoj kev no tseem muaj peev xwm tshem tawm cov suab thaj ntawm cov dej haus, thaum tseem khaws cov khoom xyaw, yog li ua rau lawv cov txiaj ntsig zoo dua.
Cov khoom siv tiv thaiv kev ua qias tuaj ntawm cov organic-nplua nuj cov tshuaj (xws li mis nyuj) ua rau nws kuj yog qhov kev xaiv zoo tshaj plaws rau lwm yam kev siv (xws li kev kho dej khib nyiab thiab kev siv kho mob). Pawg neeg npaj yuav txuas ntxiv tshawb nrhiav kev siv cov yeeb yaj kiab graphene oxide.
Cov haujlwm no yog raws li pawg neeg cov txiaj ntsig tshawb fawb yav dhau los, uas yog kev tsim cov graphene oxide membranes uas tau txau ("NaCl zoo thiab tsis lees txais cov xim sib xyaw graphene oxide/graphene layered membranes") rau kev tshem dej hiav txwv hauv cov nanotechnology ntuj. Lub membrane qhia txog kev ruaj khov tshuaj lom neeg los ntawm kev ntxiv ob peb txheej ntawm graphene, thaum ua kom pom kev ua haujlwm ruaj khov tom qab tsib hnub ntawm kev ua haujlwm. Tsis tas li ntawd, txoj kev txau dej yog qhov zoo heev hauv kev nthuav dav.
Qhov kev tshawb fawb no qhia txog nws txoj kev ua haujlwm zoo heev rau kev tiv thaiv kev ua qias tuaj thiab kev xaiv cov lactose zoo, qhia txog kev siv cov graphene oxide membranes hauv kev lag luam zaub mov, tshwj xeeb tshaj yog kev lag luam mis nyuj. Txoj kev no tseem muaj peev xwm tshem tawm cov suab thaj ntawm cov dej haus, thaum tseem khaws cov khoom xyaw, yog li ua rau lawv cov txiaj ntsig zoo dua.
Cov khoom siv tiv thaiv kev ua qias tuaj ntawm cov organic-nplua nuj cov tshuaj (xws li mis nyuj) ua rau nws kuj yog qhov kev xaiv zoo tshaj plaws rau lwm yam kev siv (xws li kev kho dej khib nyiab thiab kev siv kho mob). Pawg neeg npaj yuav txuas ntxiv tshawb nrhiav kev siv cov yeeb yaj kiab graphene oxide.
Cov haujlwm no yog raws li pawg neeg cov txiaj ntsig tshawb fawb yav dhau los, uas yog kev tsim cov graphene oxide membranes uas tau txau ("NaCl zoo thiab tsis lees txais cov xim sib xyaw graphene oxide/graphene layered membranes") rau kev tshem dej hiav txwv hauv cov nanotechnology ntuj. Lub membrane qhia txog kev ruaj khov tshuaj lom neeg los ntawm kev ntxiv ob peb txheej ntawm graphene, thaum ua kom pom kev ua haujlwm ruaj khov tom qab tsib hnub ntawm kev ua haujlwm. Tsis tas li ntawd, txoj kev txau dej yog qhov zoo heev hauv kev nthuav dav.
Lub sijhawm tshaj tawm: Lub Xya Hli-20-2021
