Titanium Dioxide(TiO2) yog ib qho xim ntau ntau siv nyob rau ntau yam kev lag luam, suav nrog cov xim av, suav nrog cov xim av, cov plastics thiab tshuaj pleev ib ce. Nws muaj nyob rau hauv ob lub ntsiab crystal cov ntaub ntawv: rutile thiab anatase. Nkag siab txog qhov sib txawv ntawm ob daim ntawv no tseem ceeb heev los xaiv qhov tseeb tam2 hom rau ib daim ntawv thov.
Rutile thiab anatase yog ob qho tib si titanium dioxide, tab sis lawv muaj cov khoom sib txawv uas ua rau lawv haum rau kev siv sib txawv. Rutile yog paub rau nws cov UV tsis kam zoo thiab huab cua tsis kam, ua rau nws xaiv nrov rau cov duab sab nraum zoov thiab cov xim sab nraud. Anatase, ntawm qhov tod tes, yog muaj nuj nqis rau nws cov photocatalytic ua haujlwm, ua rau nws zoo tagnrho rau kev siv tus kheej thiab ntxuav cov tshuab huab cua.
Ib qho ntawm lub ntsiab sib txawv ntawm rutile thiab anatase yog lawv cov qauv siv lead ua. Rutile muaj lub Tetragonal crystal qauv, thaum lub sij hawm Aatatase muaj ntau dua cov qauv siv lethorhombic. Cov qauv sib txawv no ua rau hloov pauv hauv lawv lub cev thiab tshuaj lom neeg, qhov kawg cuam tshuam rau lawv cov kev ua tau zoo hauv cov ntawv thov sib txawv.
Nyob rau hauv cov nqe lus ntawm kho qhov muag,rutile tio2Muaj qhov ntsuas siab dua siab dua thiab opacity tshaj anatase. Qhov no ua rau Rutile thawj qhov kev xaiv rau cov ntawv thov uas muaj qhov tshwm sim tseem ceeb, xws li cov xim xim dawb thiab pleev xim. Anatase, ntawm qhov tod tes, muaj cov ntsuas qis dua hauv cov ntawv thov uas yuav tsum muaj, xws li cov txheej txheem ntshiab thiab cov hnub ci.
Lwm qhov tseem ceeb kom xav txog thaum xaiv nruab nrab ntawm rutile thiab anatase Ti2 yog lawv cov ntaub ntawv photocatalytic. Anatase tau ntau dua photocatalytic efficiency tshaj rutile, ua rau nws tu cov khoom siv tus kheej thiab kev txo cov pa hluav taws xob. Cov cuab yeej no tau ua rau kev siv anatase dioxide nyob rau hauv cov khoom xws li lub iav ntxuav qia, huab cua huv tshuab thiab cov tshuaj tiv thaiv huab cua thiab cov tshuaj tiv thaiv huab cua thiab cov tshuaj tiv thaiv huab cua.
Nws kuj tsim nyog sau cia tias cov txheej txheem ntau lawm ntawm rutile ti2 thiabanatase Ti2Thov kom sib txawv, ua rau muaj kev sib txawv hauv lawv qhov loj me, thaj chaw, thiab cov yam ntxwv aggomation. Cov xwm txheej no tuaj yeem cuam tshuam cov dispersion, ruaj khov thiab kev ua tau ntawm TiO2 ua qhov tseem ceeb ntawm kev xaiv hom kev xaiv rau ib daim ntawv thov.
Hauv cov ntsiab lus, qhov sib txawv ntawm Rutile Ti2 thiab Anatase Ti2 thiab Anatase TiS2 txuas ntxiv dhau lawv qhov muag, photocatalytic, thiab ua cov khoom. Nkag siab cov kev sib txawv no yog qhov tseem ceeb los ua kev txiav txim siab thaum xaiv TiO2 rau ntau yam kev siv. Los ntawm kev xaiv cov foos tsim nyog ntawm titanium dioxide, cov chaw tsim khoom tuaj yeem ua kom zoo tshaj plaws thiab kev ua haujlwm ntawm lawv cov khoom, thaum kawg ntsib cov kev cai tshwj xeeb ntawm cov neeg siv kawg.
Lub sijhawm Post: Plaub-26-2024