Qhov zoo tshaj plaws adsorption muaj peev xwm ntawm activated carbon tseem ceeb stems los ntawm nws cov cim ntxeem tau microstructure, es tsis yog nws cov tsos. Feem ntau cov neeg siv kev lag luam thiab kev ua kom huv tsuas yog tsom rau tus nqi iodine thiab CTC cov ntaub ntawv, tab sis tsis quav ntsej txog cov ntsiab lus tseem ceeb: sib piv cov qauv pore nrog cov pa phem txiav txim siab qhov ua kom huv huv tiag tiag.
Cov pa roj carbon activated tau muab faib ua peb pawg tseem ceeb: micropores, mesopores thiab macropores, txhua qhov ua haujlwm sib txawv adsorption. Micropores, nrog qhov pore loj hauv qab 2nm, suav rau thaj chaw tshwj xeeb ntawm cov pa roj carbon activated thiab yog cov tub ntxhais channel rau adsorbing me me - cov pa phem xws li formaldehyde, benzene series thiab VOCs. Qhov nplua nuj ntawm cov qauv micropore, qhov muaj zog dua qhov muaj peev xwm saturated adsorption rau cov khoom tsis zoo me me.
Mesopores xws li 2nm mus rau 50nm ua haujlwm raws li kev sib kis rau cov pa phem molecules. Lawv tuaj yeem cuam tshuam qhov nruab nrab-molecule impurities xws li cov organic pigments thiab colloidal tshuaj nyob rau hauv dej, thiab kom tsis txhob muaj micropore blockage, ua kom muaj kev ua haujlwm tsis tu ncua thiab ruaj khov ntawm cov pa roj carbon activated. Macropores saum toj no 50nm feem ntau ua lub luag haujlwm hloov pauv, muab cov kab sib txawv rau cov dej ntws thiab txhawb nqa tag nrho cov pore moj khaum ntawm cov ntaub ntawv carbon.
Cov cheeb tsam tshwj xeeb yog sib txuas nrog cov qauv pore. Kev ua tiav thiab tsim lub pore txhais tau hais tias thaj chaw loj dua, uas muab cov chaw adsorption ntau dua. Txawm li cas los xij, thaj chaw siab tshwj xeeb tsis sib npaug zoo adsorption nyhuv. Cov pore loj thiab cov pa phem molecular txoj kab uas hla yuav ua rau invalid adsorption. Piv txwv li, activated carbon dominated by micropores muaj kev tshem tawm tsis zoo ntawm cov granular impurities loj, thaum mesoporous carbon tsis haum rau cov kab me me - molecule gas purification.
Hauv cov ntawv thov kev tsim vaj tsev, lub hom phiaj pore qauv optimization yog qhov tseem ceeb tshaj qhov tsis pom kev nrhiav qhov ntsuas qhov ntsuas siab. Txiv maj phaub plhaub tshuab txais carbon nrog tsim micropores yog qhov zoo dua rau kev lim dej hauv tsev thiab kev kho VOCs. Coal-raws li activated carbon nrog sib npaug mesopores thiab macropores yog tsim nyog rau cov dej phwj decolorization thiab impurity tshem tawm. Qhov tsim nyog pore qauv sib piv tuaj yeem txhim kho qhov ua tau zoo ntawm cov khoom siv, ua kom ntev kev pab cuam lub neej thiab txo cov nqi khiav lag luam.
Nyob rau hauv luv luv, pore qauv yog lub hauv paus txiav txim siab ntawm activated carbon kev ua tau zoo. Kev paub txog txoj cai sib txuam ntawm qhov pores thiab daim ntawv thov scenarios yog tus yuam sij rau kev xaiv siab -cov pa roj carbon activated ua tau zoo thiab zam kev siv tsis zoo.
