Ukuqonda Umahluko phakathi kwe-Anatase kunye ne-Rutile TiO2

I-Titanium dioxide (TiO2) yi-pigment emhlophe esetyenziswa kakhulu kumashishini ahlukeneyo, kuquka iipeyinti, iingubo, iiplastiki kunye nezinto zokuthambisa. Ikho kwizakhiwo ezahlukeneyo zekristale, ezona ndlela zimbini zixhaphakileyo yi-anatase kunye ne-rutile. Ukuqonda umahluko phakathi kwezi ntlobo zimbini ze-TiO2 kubalulekile ekukhetheni i-pigment echanekileyo kwisicelo esithile.

I-Anatase kunye ne-rutile yi-polymorphs ye-TiO2, oku kuthetha ukuba banokwakheka kweekhemikhali ezifanayo kodwa izakhiwo zekristale ezahlukeneyo, okubangelwa kwiipropati ezahlukeneyo kunye neempawu zokusebenza. Omnye umahluko ophambili phakathianatase iTiO2kunye ne-rutile TiO2 yinkqubo yabo yekristale. I-Anatase inokwakheka kwe-tetragonal, ngelixa i-rutile inokwakheka kwe-tetragonal exineneyo. Lo mahluko wesakhiwo ukhokelela kutshintsho kwiimpawu zabo zomzimba kunye neekhemikhali.

Ngokubhekiselele kwiipropati ezibonakalayo, i-rutile TiO2 inesalathisi esiphezulu se-refractive kunye ne-opacity enkulu kune-anatase TiO2. Oku kwenza i-rutile i-TiO2 ibe yinto yokuqala yokukhetha kwizicelo ezifuna ukukhanya okuphezulu kunye nomhlophe, njengepeyinti kunye neengubo. IAnatase titanium dioxide, kwelinye icala, yaziwa ngomsebenzi wayo ogqwesileyo wefotocatalytic, iyenza ilungele ukusingqongileyo kunye nokuzicoca iingubo kunye nezicelo zokukhusela i-UV.

Enye into ebalulekileyo ekufuneka iqwalaselwe xa kuthelekiswa ne-anatase kunye ne-rutile i-TiO2 ubukhulu bamasuntswana kunye nommandla. I-Anatase TiO2 idla ngokuba nommandla omkhulu kunye nobukhulu be-particle encinci, enegalelo kwi-reactivity ephezulu kunye nokusebenza kwe-photocatalytic.Rutile TiO2, ngakolunye uhlangothi, inomlinganiselo ofanayo wokusabalalisa ubungakanani bamasuntswana kunye nommandla ongaphantsi komhlaba, okwenza kube lula ngakumbi kwizicelo apho ukuhambelana kobungakanani be-particle kubaluleke kakhulu, njengeeplastiki kunye nezithambiso.

Kwakhona kuyafaneleka ukuba uqaphele ukuba iinkqubo zokuvelisa i-anatase kunye ne-rutile TiO2 inokubangela utshintsho ekucocekeni kweekhemikhali kunye nokunyangwa komhlaba. Ezi zinto zichaphazela i-dispersibility yazo, ukuhambelana nezinye izithako, kunye nokusebenza ngokubanzi kwiindlela ezahlukeneyo.

Ngamafutshane, ngelixa zombinianatase kunye ne-rutile TiO2Imibala emhlophe exabisekileyo eneempawu ezizodwa, ukuqonda ukungafani kwazo kubalulekile ekukhetheni uhlobo oluchanekileyo lwesicelo esithile. Ingaba imfuno yokukhanya okuphezulu kunye nomhlophe kwiipeyinti kunye neengubo okanye imfuno yemisebenzi ephezulu ye-photocatalytic kwiingubo ezihambelana nokusingqongileyo, ukhetho phakathi kwe-anatase kunye ne-rutile TiO2 inokuchaphazela kakhulu ukusebenza kunye nokusebenza kwemveliso yokugqibela. Ngokuqwalasela isakhiwo se-crystal, izakhiwo ze-optical, ubukhulu be-particle kunye ne-surface properties kwifom nganye, abavelisi kunye nabaqulunqi banokwenza izigqibo ezinolwazi ukufezekisa iziphumo ezifunwayo kwiifom zabo.