Carbon films xws li graphene yog lub teeb heev tab sis cov ntaub ntawv muaj zog heev nrog rau kev siv tau zoo heev, tab sis tej zaum yuav nyuaj rau kev tsim khoom, feem ntau yuav tsum muaj ntau lub zog thiab siv sij hawm siv cov tswv yim, thiab cov txheej txheem yog kim thiab tsis zoo ib puag ncig.
Nrog rau kev tsim cov graphene ntau, txhawm rau kov yeej cov teeb meem uas tau ntsib hauv kev siv cov txheej txheem rho tawm tam sim no, cov kws tshawb fawb ntawm Ben Gurion University ntawm Negev hauv Ixayees tau tsim "ntsuab" graphene extraction txoj kev uas tuaj yeem siv rau ntau yam. ntawm cov teb, suav nrog optics, electronics, ecology thiab biotechnology.
Cov kws tshawb fawb tau siv cov tshuab dispersion los rho graphene los ntawm cov pob zeb hauv av striolite.Lawv pom tias cov ntxhia hypophyllite qhia tau tias muaj kev cia siab zoo hauv kev tsim cov khoom lag luam-scale graphene thiab graphene zoo li cov khoom.
Cov ntsiab lus carbon ntawm hypomphibole yuav txawv.Raws li cov ntsiab lus carbon, hypomphibole tuaj yeem muaj peev xwm sib txawv.Qee hom yuav siv tau rau lawv cov khoom catalytic, thaum lwm hom muaj cov kab mob bactericidal.
Cov yam ntxwv ntawm hypopyroxene txiav txim siab lawv daim ntawv thov hauv cov txheej txheem oxidation-txo, thiab nws tseem tuaj yeem siv rau kev tsim hluav taws xob tawg thiab ferroalloy ntau lawm ntawm cam khwb cia (siab silicon) cam khwb cia hlau.
Vim nws lub cev cov khoom siv lub cev, kev ceev ceev, lub zog zoo thiab hnav tsis kam lees, hypophylite kuj muaj ntau yam organic, yog li nws tuaj yeem siv ua cov khoom lim.Nws kuj tau pom tias muaj peev xwm tshem tawm cov dawb radicals uas tuaj yeem ua paug rau hauv dej.
Lub hypopyroxene qhia tau hais tias muaj peev xwm los tua kab mob thiab ntxuav cov dej los ntawm cov kab mob, cov kab mob, cov kab mob yooj yim thiab xiav-ntsuab algae.Vim nws cov catalytic siab thiab txo cov khoom, magnesia feem ntau yog siv los ua ib qho adsorbent rau kev kho dej khib nyiab.
(a) X13500 magnification thiab (b) X35000 magnification TEM duab ntawm dispersed hypophyllite qauv.(c) Raman spectrum ntawm kho hypophyllite thiab (d) XPS spectrum ntawm cov pa roj carbon kab nyob rau hauv hypophyllite spectrum
Graphene rho tawm
Txhawm rau npaj cov pob zeb rau graphene extraction, ob leeg siv lub tshuab ntsuas hluav taws xob scanning (SEM) los tshuaj xyuas cov hlau hnyav thiab qhov porosity hauv cov qauv.Lawv kuj tau siv lwm txoj hauv kev los kuaj xyuas cov txheej txheem dav dav thiab muaj lwm yam minerals hauv hypomphibole.
Tom qab cov qauv kev soj ntsuam thiab kev npaj tiav lawm, cov kws tshawb fawb tau muaj peev xwm rho tawm graphene los ntawm diorite tom qab mechanically ua cov qauv los ntawm Karelia siv lub tshuab nqus tsev ultrasonic.
Txij li tus lej loj ntawm cov qauv tuaj yeem ua tiav siv txoj kev no, tsis muaj kev pheej hmoo ntawm kev kis kab mob thib ob, thiab tsis tas yuav tsum ua cov qauv ua ntej.
Txij li thaum cov khoom txawv tshaj plaw ntawm graphene tau paub dav hauv cov kev tshawb fawb dav dav hauv zej zog, ntau txoj kev tsim khoom thiab kev sib txuas tau tsim.Txawm li cas los xij, ntau txoj hauv kev no yog cov txheej txheem ntau kauj ruam lossis xav tau kev siv tshuaj thiab muaj zog oxidizing thiab txo cov neeg ua haujlwm.
Txawm hais tias graphene thiab lwm cov yeeb yaj kiab carbon tau pom muaj peev xwm siv tau zoo thiab ua tiav cov txheeb ze R & D ua tiav, cov txheej txheem siv cov ntaub ntawv no tseem tab tom txhim kho.Ib feem ntawm qhov kev sib tw yog ua kom graphene extraction nqi-zoo, uas txhais tau hais tias nrhiav txoj cai dispersion technology yog tus yuam sij.
Txoj kev sib cais lossis kev sib xyaw ua ke no yog kev ua haujlwm hnyav thiab ib puag ncig tsis zoo, thiab lub zog ntawm cov thev naus laus zis no tuaj yeem ua rau muaj qhov tsis xws ntawm cov khoom tsim graphene, yog li txo qhov kev xav tau zoo ntawm graphene.
Daim ntawv thov ntawm cov tshuaj ntxuav ultrasonic hauv graphene synthesis tshem tawm cov kev pheej hmoo thiab cov nqi cuam tshuam nrog ntau cov kauj ruam thiab cov txheej txheem tshuaj.Siv txoj kev no rau cov pob zeb hauv av hypophyllite tau ua rau txoj hauv kev tshiab rau ib puag ncig tus phooj ywg ntawm kev tsim graphene.
Post lub sij hawm: Nov-04-2021