Kev piav txog
Cov molecules ntawm cov tshuaj sib txawv yog qhov txawv ntawm qhov tseem ceeb thiab qhov loj ntawm kev kos duab, yog li cov duab hu ua "molecular sab cib".
Molecular sab cib (tseem hu ua hluavtaws Zeolite) yog silicated microporousrystal. Nws yog cov pob txha pob txha uas yooj yim muaj cov khoom sib xyaw ua ke ntawm silicon aluminate, nrog rau cov hlau xaim (k +, thiab lwm yam) kom sib npaug cov kev tsis zoo ntawm cov siv lead ua. Hom molecular feem ntau muab faib ua ib hom, x hom thiab y ntaus raws li nws cov qauv siv lead ua.
| Tshuaj mis ntawm Zeolite Hlwb: | Mx / n [(alo.2) x (sio.2) Y] wh.2O. |
| MX / N :. | Cation ion, khaws cov lead ua kom nruab nrab nruab nrab |
| (ALO2) X (Sio2) Y: | Lub cev pob txha ntawm cov Zeolite muaju, nrog cov duab sib txawv ntawm qhov thiab raws |
| H2O: | Lub cev muaj kab mob lub cev tau kos duab |
| Nta: | Ntau yam adsorption thiab kev cawm dim yuav ua tau |
| Ntaus cov molecular sab cib | Lub ntsiab tivthaiv ntawm hom molecular sab nrov yog silicon aluminate. Lub ntsiab crystal lub qhov yog lub psosaring.the aperture ntawm lub crystal aperture yog 4å (1Å
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| Hom X molecular sab cib | Lub ntsiab tivthaiv ntawm X molecular sab sib luag yog silicon aluminate, lub ntsiab crystal lub qhov yog kaum ob lub nplhaib qauv qauv. CA2 + Pauv rau NA + nyob rau hauv ib tug 13x molecular sieve, sib sau ib tug molecular sieveryryry, kuj yog paub li calcium x) molecular sab cib.
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Ntaus cov molecular sab cib
Hom X molecular sab cib
Daim ntawv thov
Cov adsorption ntawm cov khoom siv los ntawm kev kos npe rau lub cev (vander WATORS yuam), nrog lub qhov muaj zog polarbation thiab courtal molecules (xws li dej) thiab unsaturated molecules.
Lub aperture faib ntawm cov suab paj nruag molecular yog cov khoom siv tsis zoo, thiab tsuas yog cov tshuaj nrog cov kab sib chaws me me dua lub qhov taub uas hla hauv lub qhov sab hauv ntawm cov nplais molecular.