I-Nano-titanium dioxide i-TIO2 inomsebenzi ophezulu we-photocatalytic futhi inezinto ezibonakalayo ezibaluleke kakhulu.Ngezakhiwo zamakhemikhali ezizinzile kanye nemithombo eningi yezinto ezingavuthiwe, okwamanje iyi-photocatalyst ethembisa kakhulu.

Ngokusho kohlobo lwekristalu, ingahlukaniswa: i-T689 rutile nano titanium dioxide kanye ne-T681 anatase nano titanium dioxide.

Ngokwezici zayo ezingaphezulu, ingahlukaniswa ibe: i-hydrophilic nano titanium dioxide kanye ne-lipophilic nano titanium dioxide.

   I-Nano titanium dioxide TIO2ikakhulukazi inamafomu amabili ekristalu: i-Anatase ne-Rutile.I-rutile titanium dioxide izinzile futhi iminyene kune-anatase titanium dioxide, inobulukhuni obuphakeme, ukuminyana, inkomba ye-dielectric engaguquki kanye ne-refractive index, namandla ayo okufihla kanye namandla okuthayela nawo aphezulu.I-titanium dioxide yohlobo lwe-anatase inokucwebezela okuphezulu engxenyeni yegagasi elifushane yokukhanya okubonakalayo kunohlobo lwe-rutile-titanium dioxide, inombala oluhlaza okwesibhakabhaka, futhi inamandla aphansi okumunca i-ultraviolet kunohlobo lwe-rutile, futhi inomsebenzi we-photocatalytic ophakeme kuno uhlobo lwe-rutile.Ngaphansi kwezimo ezithile, i-anatase titanium dioxide ingaguqulwa ibe i-rutile titanium dioxide.

Izinhlelo zokusebenza zokuvikela imvelo:

Kubandakanya ukwelashwa kokungcola kwe-organic (ama-hydrocarbon, ama-halogenated hydrocarbons, ama-carboxylic acid, ama-surfactants, odayi, izinto eziphilayo eziqukethe i-nitrogen, izibulala-zinambuzane ze-organic phosphorus, njll.), ukwelashwa kokungcola okungaphili (i-photocatalysis ingaxazulula i-Cr6+, Hg2+, Pb2+, njll.) Ukungcoliswa kwama-ion ensimbi esindayo) kanye nokuhlanzwa kwemvelo kwangaphakathi (ukucekelwa phansi kwe-ammonia yasendlini, i-formaldehyde ne-benzene ngama-photocatalytic green coatings).

Izicelo ekunakekelweni kwezempilo:

I-Nano-titanium dioxide ibola amagciwane ngaphansi kwesenzo se-photocatalysis ukuze kuzuzwe umphumela we-antibacterial, ukubulala amabhaktheriya namagciwane, futhi ingasetshenziselwa inzalo kanye nokubulala amagciwane emanzini asekhaya;ingilazi, izitsha zobumba, njll. ezilayishwe nge-TIO2 photocatalysis zisetshenziswa ezindaweni zokukhucululwa kwendle njengezibhedlela, amahhotela, amakhaya, njll. Impahla efanelekile yokulwa namagciwane nokuqeda iphunga.Ingase futhi yenze amangqamuzana athile abangela umdlavuza asebenze.

Umthelela we-bactericidal we-TiO2 usemthelela wayo kasayizi we-quantum.Nakuba i-titanium dioxide (i-TiO2 evamile) nayo inomphumela we-photocatalytic, ingakwazi futhi ukukhiqiza ama-electron nama-hole pair, kodwa isikhathi sayo sokufinyelela ebusweni bezinto ezibonakalayo singaphezu kwama-microseconds, futhi kulula ukuhlanganisa kabusha.Kunzima ukusebenzisa umphumela we-antibacterial, kanye ne-nano-dispersion degree ye-TiO2, ama-electron nezimbobo ezijatshuliswa ukukhanya zisuka emzimbeni ziye phezulu, futhi kuthatha kuphela ama-nanoseconds, ama-picoseconds, noma ama-femtoseconds.Ukuhlanganiswa kabusha kwama-electron akhiqizwe izithombe nezimbobo ku-oda lama-nanoseconds, angakwazi ukuthuthela phezulu ngokushesha, ahlasele amagciwane, futhi adlale umthelela we-antibacterial ohambisanayo.

I-Anatase nano titanium dioxide inomsebenzi ophezulu ongaphezulu, ikhono eliqinile lokulwa namagciwane, futhi umkhiqizo kulula ukuwuhlakaza.Ukuhlola kubonise ukuthi i-nano-titanium dioxide inamandla aqinile okubulala amagciwane ngokumelene ne-Pseudomonas aeruginosa, i-Escherichia coli, i-Staphylococcus aureus, i-Salmonella ne-Aspergillus.Ivunywe ngokujulile futhi isetshenziswa kabanzi emikhiqizweni elwa namagciwane emkhakheni wezindwangu, izitsha zobumba, irabha, nemithi.

I-anti-fogging kanye ne-self-cleans coating:

Ngaphansi kokukhanya kwe-ultraviolet, amanzi angena ngokuphelele efilimu ye-titanium dioxide.Ngakho-ke, ukumboza ungqimba lwe-nano-titanium dioxide ezibukweni zasendlini yokugezela, ingilazi yemoto kanye nezibuko ezibukwa ngemuva kungadlala indima ekuvimbeleni ukugqwala.Ingakwazi futhi ukubona ukuzihlanza kobuso bamalambu omgwaqo, ama- guardrail omgwaqo omkhulu, nokwakha amathayela odonga angaphandle.

Umsebenzi we-Photocatalytic

Imiphumela yocwaningo ithole ukuthi ngaphansi kwesenzo sokukhanya kwelanga noma imisebe ye-ultraviolet ekukhanyeni, i-Ti02 ivula futhi ikhiqize ama-radicals mahhala anomsebenzi ophezulu we-catalytic, ongakhiqiza amandla aqinile we-photooxidation nokunciphisa, futhi angakwazi ukuvuselela futhi anciphise i-formaldehyde ehlukahlukene enamathiselwe phezulu. wezinto.Okufana ne-organic matter kanye ne-inorganic matter.Ingadlala umsebenzi wokuhlanza umoya wasendlini.

Umsebenzi wokuvikela we-UV

Noma iyiphi i-titanium dioxide inekhono elithile lokumunca imisebe ye-ultraviolet, ikakhulukazi imisebe ye-ultraviolet yamagagasi amade eyingozi emzimbeni womuntu, i-UVA\UVB, inamandla okumunca aqinile.Ukuzinza kwamakhemikhali okuhle kakhulu, ukuzinza kokushisa, ukungabi nobuthi nezinye izakhiwo.I-Ultra-fine titanium dioxide inamandla anamandla okumunca imisebe ye-ultraviolet ngenxa yosayizi wayo wezinhlayiyana ezincane (ezibonisa ngale) nomsebenzi omkhulu.Ngaphezu kwalokho, inombala ocacile wethoni, i-abrasion ephansi, nokuhlakazeka okuhle okulula.Kunqunywa ukuthi i-titanium dioxide iyona esetshenziswa kakhulu ezintweni ezingaphili ezisetshenziswa kakhulu kwezimonyo.Ngokwemisebenzi yayo ehlukene ezimonyoni, izimfanelo ezihlukene ze-titanium dioxide zingasetshenziswa.Ubumhlophe nokufiphala kwe-titanium dioxide kungasetshenziswa ukwenza izimonyo zibe nemibala ehlukahlukene.Lapho i-titanium dioxide isetshenziswa njengesengezo esimhlophe, i-T681 anatase titanium dioxide isetshenziswa ngokuyinhloko, kodwa lapho amandla okufihla nokumelana nokukhanya kucatshangelwa , Kungcono ukusebenzisa i-T689 rutile titanium dioxide.