Ukuqonda Umehluko Phakathi kwe-Rutile, Anatase, kanye ne-Brookite: Ukwembula Izimfihlakalo Ze-Titanium Dioxide

Isingeniso:

I-Titanium dioxide (I-TiO2) ingenye yezinto eziguquguqukayo nezisetshenziswa kakhulu ezimbonini ezahlukahlukene, kufaka phakathi amapende nama-coatings, izimonyo, ngisho nokudla. Kunezinhlaka ezintathu eziyinhloko zekristalu emndenini we-TiO2:i-rutile anatase ne-brookite. Ukuqonda umehluko phakathi kwalezi zakhiwo kubalulekile ekusebenziseni izakhiwo zazo eziyingqayizivele futhi uvule amandla azo. Kule bhulogi, sizobhekisisa izakhiwo kanye nokusetshenziswa kwe-rutile, i-anatase, ne-brookite, siveze lezi zinhlobo ezintathu ezithakazelisayo ze-titanium dioxide.

1. I-Rutile Tio2:

I-Rutile iwuhlobo oluningi futhi oluzinzile lwe-titanium dioxide. Ibonakala ngesakhiwo sayo sekristalu ye-tetragonal, ehlanganisa ama-octahedron agcwele eduze. Leli lungiselelo lekristalu linikeza i-rutile ukumelana okuhle kakhulu emisebeni ye-UV, okuyenza ibe yinketho enhle kakhulu ekwakhiweni kwe-sunscreen kanye ne-UV-blocking coatings.I-Rutile Tio2Inkomba ye-refractive ephezulu iphinde ithuthukise ukukhanya kwayo nokukhanya, iyenze ifaneleke ukukhiqiza opende bekhwalithi ephezulu noyinki wokuphrinta. Ukwengeza, ngenxa yokuqina kwayo kwamakhemikhali aphezulu, i-Rutile Tio2 inezinhlelo zokusebenza zokusekela ama-catalyst, ama-ceramics, namadivayisi optical.

2. Anatase Tio2:

I-Anatase ingenye indlela evamile yecrystalline ye-titanium dioxide futhi inesakhiwo esilula se-tetragonal. Uma kuqhathaniswa ne-rutile,Anatase Tio2inomthamo ophansi nendawo ephezulu, okuwunikeza umsebenzi ophezulu we-photocatalytic. Ngakho-ke, isetshenziswa kakhulu ezinhlelweni ze-photocatalytic ezifana nokuhlanzwa kwamanzi nomoya, izindawo zokuzihlanza, kanye nokwelashwa kwamanzi angcolile. I-Anatase iphinde isetshenziswe njenge-ejenti emhlophe ekwenzeni iphepha nanjenge-catalyst support ekuphenduleni kwamakhemikhali okuhlukahlukene. Ngaphezu kwalokho, izici zayo eziyingqayizivele zikagesi ziyenza ifanelekele ukukhiqizwa kwamaseli elanga azwela udayi nezinzwa.

3. Brookite Tio2:

I-Brookite iwuhlobo oluncane oluvamile lwe-titanium dioxide futhi inokwakheka kwekristalu ye-orthorhombic ehluke kakhulu ezinhlakeni ze-tetragonal ze-rutile ne-anatase. I-Brookite ivame ukwenzeka kanye nezinye izinhlobo ezimbili futhi inezici ezithile ezihlanganisiwe. Umsebenzi wayo we-catalytic uphakeme kune-rutile kodwa uphansi kune-anatase, okuyenza ibe wusizo kwezinye izinhlelo zokusebenza zamaseli elanga. Ukwengeza, isakhiwo sekristalu esiyingqayizivele se-brookite sivumela ukuthi sisetshenziswe njengesibonelo samaminerali ebucwebe ngenxa yokubukeka kwayo okungavamile nokuyingqayizivele.

Isiphetho:

Ukufingqa, izinto ezintathu ze-rutile, i-anatase ne-brookite zinezakhiwo nezakhiwo zekristalu ezihlukene, futhi ngayinye inezinzuzo zayo kanye nezicelo zayo. Kusukela ekuvikelweni kwe-UV kuya ku-photocatalysis nokuningi, lezi zinhlobo zetitanium dioxidedlala indima ebalulekile ezimbonini ezahlukahlukene, ukuphusha imingcele yokuqanjwa kabusha kanye nokwenza ngcono izimpilo zethu zansuku zonke.

Ngokuqonda izakhiwo nokusetshenziswa kwe-rutile, i-anatase ne-brookite, abacwaningi nezinkampani bangenza izinqumo ezinolwazi lapho bekhetha uhlobo lwe-titanium dioxide oluzifanela kangcono izidingo zabo ezithile, luqinisekise ukusebenza kahle nemiphumela elindelekile.