Tshuaj lom neeg thiab cov khoom ntom ntawm cov khoom siv tsis zoo no lim cov ntaub qhwv tshuab

Tsis siv neeg hloov tshuab lim ntaub tshuab wrapping muaj ib lub qauv siv lead ua thiab pore qauv hauv, thiab lub tshuab ua kom lub cev kuj muaj qee cov qauv tshuaj. Cov adsorption kev ua haujlwm ntawm activated carbon nyob ntawm qhov tsis yog ntawm lub cev (porosity) ntawm cov activated carbon, tab sis kuj rau ntawm cov txheej txheem cov nplaim ntawm cov activated carbon. Thaum lub sij hawm npaj ntawm activated carbon, ntug tshuaj sib qhwv ntawm cov ntxhuav ntawv ua nyob rau hauv cov theem carbonization yog tawg rau daim ntawv carbon atoms muaj unpaired electrons. Cov tshuaj carbon atoms no muaj cov tshuaj sib xyaw unsaturated thiab tuaj yeem tshwm sim nrog cov kab mob heterocyclic xws li oxygen, hydrogen, nitrogen thiab sulfur los ua ntau pawg. Lub xub ntiag ntawm cov chaw saum npoo undoubtedly cuam tshuam cov adsorption cov khoom ntawm activated carbon.

Tsis siv cov tshuab lim dej ua ke Cov cov heterocyclic atoms yog sib txuas rau carbon atoms ntawm cov npoo ntawm cov nplooj ntawv coj los ua cov pa oxygen, cov tshuaj muaj roj thiab muaj nitrogen uas muaj cov khoom xyaw. Cov chaw sib xyaw ntawm cov dej no hloov cov saum npoo thiab nto cov khoom ntawm cov pa roj carbon monoxide thaum cov npoo no ua rau cov dej ntws tawm thawj.

Cov txheej txheem deg ntawm activated carbon yog cais ua peb hom: acidic, basic thiab nruab nrab. Acidic deg dej muaj nuj nqi muaj xws li cov carbonyl, carboxyl, lactone, hydroxyl, ether, phenol, etc., uas yuav txhawb lub adsorption ntawm cov tshuaj yooj yim los ntawm activated carbon. Cov hauv paus txheej txheem dej num yooj yim xws li pyrone (cycloketone) thiab nws cov dej caw, uas tuaj yeem ua rau cov activated carbon. Adsorption ntawm acidic tshuaj.

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