Qhov sib txawv tseem ceeb ntawm zeta muaj peev xwm thiab qhov taw tes ntawm xoom nqi yog tias zeta muaj peev xwm yog qhov sib txawv ntawm qhov nruab nrab dispersion thiab cov txheej txheem nyob ruaj khov ntawm cov kua dej ntawm colloidal dispersion whereas point of xoom charge yog pH ntawm colloidal. dispersion uas tag nrho cov nqi ntawm colloidal hais yog xoom.
Zeta muaj peev xwm thiab taw tes ntawm xoom nqi yog cov ntsiab lus tseem ceeb hauv electrochemistry, hais txog cov khoom ntawm colloidal dispersions. Lub colloidal dispersion yog ib qho kev ncua uas peb tuaj yeem pom cov khoom soluble lossis insoluble tau tawg mus thoob plaws hauv cov kua.
Zeta muaj peev xwm yog dab tsi?
Zeta muaj peev xwm yog lub peev xwm electrokinetic ntawm colloidal dispersion. Lub npe ntawm lo lus no yog muab los ntawm Greek tsab ntawv "zeta", thiab peb feem ntau hu qhov no electrokinetic peev xwm ua zeta muaj peev xwm. Hauv lwm lo lus, zeta muaj peev xwm yog qhov sib txawv ntawm qhov nruab nrab dispersion thiab cov txheej txheem nyob ruaj khov ntawm cov kua txuas nrog rau cov khoom tawg ntawm colloidal dispersion. Yog li ntawd, lo lus no muab ib qho kev qhia ntawm tus nqi tam sim no ntawm particle nto. Muaj ob hom zeta muaj peev xwm ua qhov zoo thiab tsis zoo zeta peev xwm. Ntxiv mus, qhov peev xwm no yog qhov peb ntsuas raws li qhov nrawm ntawm cov khoom hauv d.c. hluav taws xob teb.
Daim duab 1: Kev hloov pauv ntawm Zeta Muaj Peev Xwm ntawm cov khoom nyob hauv Collodal Suspension nrog nrug deb ntawm Particle nto
Zeta muaj peev xwm zoo qhia tau hais tias cov khoom sib cais hauv qhov raug ncua uas peb ntsuas qhov zeta muaj peev xwm muaj qhov zoo. Tsis tas li ntawd, xav txog qhov tseem ceeb, tsis muaj qhov sib txawv ntawm qhov zoo thiab qhov tsis zoo zeta muaj peev xwm. Qhov tsis zoo zeta muaj peev xwm qhia tau tias cov khoom tawg hauv qhov raug ncua uas peb ntsuas qhov zeta muaj peev xwm muaj qhov tsis zoo. Yog li, tus nqi ntawm cov khoom tawg yog qhov tsis zoo.
Point of Zero Charge yog dab tsi?
Lub ntsiab lus ntawm xoom nqi yog pH uas tag nrho cov nqi ntawm ib qho yog xoom. Lub tswv yim no tau tsim los piav qhia txog colloidal flocculation. Hauv electrochemistry, hluav taws xob muaj peev xwm yog ib lo lus zoo ib yam li point of xoom charge.
Daim duab 02: Daim duab ntawm cov khoom siv hluav taws xob hauv kev ncua kev sib tsoo
Hauv biochemistry, point of xoom charge is the isoelectric point. Feem ntau, qhov taw tes no yog txiav txim siab los ntawm acid-base titrations, qhov twg cov tshuaj tiv thaiv neutralization tshwm sim. Cov tshuaj ntsuam xyuas rau qhov titration no yog colloidal dispersion, thiab cov txheej txheem yog nqa tawm nyob rau hauv kev soj ntsuam ntawm lub electrophoretic mobility ntawm hais nyob rau hauv lub dispersion.
Qhov txawv ntawm Zeta Peev Xwm thiab Point of Zero Charge yog dab tsi?
Qhov sib txawv tseem ceeb ntawm zeta muaj peev xwm thiab taw tes ntawm xoom nqi yog tias zeta muaj peev xwm yog qhov sib txawv ntawm qhov nruab nrab dispersion thiab cov txheej txheem nyob ruaj khov ntawm cov kua dej ntawm colloidal dispersion whereas lub point ntawm xoom nqi yog pH ntawm lub colloidal dispersion uas tag nrho cov nqi ntawm colloidal hais yog xoom.
Ntxiv mus, lwm qhov sib txawv ntawm zeta muaj peev xwm thiab taw tes ntawm xoom nqi yog tias zeta muaj peev xwm ntsuas tus nqi muaj peev xwm thaum lub point ntawm xoom nqi ntsuas pH tus nqi.
Summary – Zeta Muaj Peev Xwm vs Point of Zero Charge
Zeta muaj peev xwm thiab taw tes ntawm xoom nqi yog cov ntsiab lus tseem ceeb hauv electrochemistry txog cov khoom ntawm colloidal dispersions. Qhov sib txawv tseem ceeb ntawm zeta muaj peev xwm thiab qhov taw tes ntawm xoom nqi yog tias zeta muaj peev xwm yog qhov sib txawv ntawm qhov nruab nrab dispersion thiab cov txheej txheem nyob ruaj khov ntawm cov kua dej ntawm colloidal dispersion whereas point of xoom charge hais txog pH ntawm colloidal dispersion nyob rau hauv uas. tag nrho cov nqi ntawm cov colloidal hais yog xoom.
