Graphene yog ib qho khoom siv tsis zoo uas nrov heev tsis ntev los no, thiab nws tau txais kev saib xyuas ntau hauv cov nyhuv transistors, roj teeb, capacitors, polymer nanosynthesis, thiab membrane sib cais.Tej zaum cov ntaub ntawv membrane tshiab tuaj yeem dhau los ua cov tiam tom ntej ntawm cov khoom siv hauv cov khoom siv membrane.
Cov khoom ntawm Graphene Oxide
Graphene oxide (GO) yog honeycomb ob-dimensional planar zaj duab xis tsim los ntawm ib txheej ntawm carbon atoms.Nws cov tshuaj muaj pes tsawg leeg yog tsim los ntawm carbon atoms thiab polar oxygen-muaj pawg ua haujlwm.GO yog vim muaj cov pab pawg uas muaj cov pa oxygen.Thiab qhov kev faib tawm tsis meej ua rau nws cov qauv molecular teeb meem.Ntawm lawv, Lerf-Klinowski qauv qauv yog dav lees paub, thiab nws tau txiav txim siab tias muaj peb pawg ua haujlwm tseem ceeb hauv GO, uas yog pawg hydroxyl thiab epoxy nyob rau saum npoo, thiab cov nyob ntawm ntug.carboxyl.
GO muaj ob-dimensional planar qauv zoo ib yam li graphene.Qhov txawv yog tias GO nthuav qhia ntau ntawm cov polar oxygen-muaj cov pab pawg ua haujlwm nyob rau saum npoo ntawm cov pob txha pob txha vim oxidation, xws li -O-, -COOH, -OH, thiab lwm yam. Lub neej ntawm cov pab pawg ua haujlwm nce qhov nyuaj ntawm tus qauv GO.Cov txheej GO txuas nrog ntau ntawm hydrogen daim ntawv cog lus, thiab cov qauv ntawm ob sab yog txuas nrog covalent bonds muaj zog, uas ua rau nws tsis tshua muaj hydrophilic.GO yog ib zaug suav hais tias yog cov tshuaj hydrophilic, tab sis GO yog qhov tseeb amphiphilic, qhia txog kev hloov pauv ntawm hydrophilic mus rau hydrophobic los ntawm ntug mus rau qhov chaw.Cov qauv tshwj xeeb ntawm GO muab rau nws thaj chaw loj tshwj xeeb, qhov tshwj xeeb thermodynamics Nws muaj qhov tseem ceeb ntawm kev tshawb fawb zoo thiab kev cia siab rau hauv kev lag luam biology, tshuaj, thiab cov ntaub ntawv.
Ob peb hnub dhau los, cov ntawv xov xwm thoob ntiaj teb sab saum toj "Nature" tau luam tawm lub rooj sab laj "Ion sieving los ntawm cations tswj lub interlayer spacing ntawm graphene oxide films".Qhov kev tshawb fawb no tawm tswv yim thiab paub txog kev tswj hwm ntawm graphene daim nyias nyias los ntawm hydrated ions, ua kom pom zoo ion sieving thiab seawater desalination.kev ua tau zoo.
Raws li kev lag luam, kuv lub teb chaws tau them nyiaj rau kev tshawb fawb thiab kev loj hlob ntawm graphene ua ntej.Txij li xyoo 2012, kuv lub teb chaws tau tshaj tawm ntau dua 10 txoj cai ntsig txog graphene.Nyob rau hauv 2015, thawj lub teb chaws programmatic daim ntawv "Ntau lub tswv yim ntawm Accelerating lub Innovation thiab kev loj hlob ntawm lub Graphene kev lag luam" tau npaj los tsim cov graphene kev lag luam mus rau hauv ib tug ua lag luam, thiab tsim ib tug tiav graphene kev lag luam system los ntawm 2020. Ib tug series ntawm cov ntaub ntawv xws li raws li 13th Tsib Xyoo Plan tau suav nrog graphene rau hauv thaj chaw ntawm cov ntaub ntawv tshiab uas tau tsim muaj zog heev.Lub koom haum kwv yees tias tag nrho cov nplai ntawm kuv lub teb chaws graphene kev ua lag luam yuav tsum tshaj 10 billion yuan hauv 2017. Txoj kev loj hlob ntawm kev lag luam graphene yog nrawm, thiab cov tuam txhab muaj feem cuam tshuam yuav tau txais txiaj ntsig.
Lub sij hawm xa tuaj: Plaub Hlis-20-2022