Nano-titanium dioxide TIO2 e na le ts'ebetso e phahameng ea photocatalytic mme e na le thepa ea bohlokoa haholo ea optical.E na le lisebelisoa tsa lik'hemik'hale tse tsitsitseng le mehloli e mengata ea lihlahisoa tse tala, hona joale ke photocatalyst e tšepisang ka ho fetisisa.

Ho ea ka mofuta oa kristale, e ka aroloa ka: T689 rutile nano titanium dioxide le T681 anatase nano titanium dioxide.

Ho ea ka litšobotsi tsa eona tse ka holimo, e ka aroloa ka: hydrophilic nano titanium dioxide le lipophilic nano titanium dioxide.

   Nano titanium dioxide TIO2haholo-holo e na le mefuta e 'meli ea kristale: Anatase le Rutile.Rutile titanium dioxide e tsitsitse ebile e teteaneng ho feta anatase titanium dioxide, e na le thata e phahameng, density, dielectric constant le refractive index, 'me matla a eona a ho pata le matla a tinting le tsona li phahame.Titanium dioxide ea mofuta oa anatase e na le khanya e phahameng ka ho fetisisa karolong e khutšoanyane ea leqhubu la leseli le bonahalang ho feta mofuta oa rutile titanium dioxide, e na le tint e putsoa, ​​'me e na le matla a tlaase a ho monya ultraviolet ho feta mofuta oa rutile,' me e na le ts'ebetso e phahameng ea photocatalytic ho feta. mofuta oa rutile.Tlas'a maemo a itseng, anatase titanium dioxide e ka fetoloa rutile titanium dioxide.

Lisebelisoa tsa ts'ireletso ea tikoloho:

Ho kenyeletsoa kalafo ea lintho tse silafatsang organic (hydrocarbons, halogenated hydrocarbons, carboxylic acids, surfactants, dae, naetrojene-e nang le manyolo, manyolo phosphorus chefo e bolaeang likokoanyana, joalo-joalo), phekolo ea lintho tse silafatsa inorganic (photocatalysis ka rarolla Cr6+, Hg2+, Pb2+, joalo-joalo). Tšilafalo ea li-ion tsa heavy metal) le tlhoekiso ea tikoloho ea ka tlung (ho senyeha ha ammonia ea ka tlung, formaldehyde le benzene ka liphahlo tse tala tsa photocatalytic).

Likopo tsa tlhokomelo ea bophelo bo botle:

Nano-titanium dioxide e senya libaktheria tlas'a ts'ebetso ea photocatalysis ho finyella phello ea antibacterial, ho bolaea libaktheria le likokoana-hloko, 'me e ka sebelisoa bakeng sa sterilization le disinfection ea metsi a malapeng;khalase, li-ceramics, joalo-joalo tse jereng TIO2 photocatalysis li sebelisoa libakeng tse sa tšoaneng tsa bohloeki tse kang lipetlele, lihotele, matlo, joalo-joalo.E ka boela ea etsa hore lisele tse ling tse bakang mofetše li sebetse.

Phello ea bactericidal ea TiO2 e ka lebaka la boholo ba eona ba boholo.Le hoja titanium dioxide (e tloaelehileng ea TiO2) e boetse e na le phello ea photocatalytic, e ka boela ea hlahisa li-elektronike le lipara tsa lesoba, empa nako ea eona ea ho fihla holim'a thepa e ka holimo ho microseconds, 'me ho bonolo ho e kopanya hape.Ho thata ho sebelisa phello ea antibacterial, 'me tekanyo ea nano-dispersion ea TiO2, lielektrone le masoba a hlasimolohileng ke leseli li falla ho tloha' meleng ho ea holimo, 'me ho nka li-nanoseconds, picoseconds, kapa esita le li-femtoseconds feela.Ho kopana hape ha li-electrone le masoba a photogenerated ke Ka tatellano ea li-nanoseconds, e ka fallela ka potlako holimo, ea hlasela likokoana-hloko tsa baktheria, 'me ea bapala phello e tšoanang ea antibacterial.

Anatase nano titanium dioxide e na le ts'ebetso e phahameng ea holim'a metsi, matla a matla a antibacterial, 'me sehlahisoa se bonolo ho hasanya.Liteko li bontšitse hore nano-titanium dioxide e na le matla a matla a bactericidal khahlanong le Pseudomonas aeruginosa, Escherichia coli, Staphylococcus aureus, Salmonella le Aspergillus.E amohetsoe ka botebo mme e sebelisoa haholo lihlahisoa tse thibelang likokoana-hloko masimong a masela, lirafshoa, rabara le meriana.

Anti-fogging le ho itlhoekisa:

Tlas'a mahlaseli a khanya ea ultraviolet, metsi a kenella ka ho feletseng filiming ea titanium dioxide.Ka hona, ho roala lesela la nano-titanium dioxide holim'a liipone tsa kamore ea ho hlapela, likhalase tsa koloi le liipone tse ka morao li ka phetha karolo ea ho thibela moholi.E ka boela ea hlokomela ho itlhoekisa ha bokaholimo ba mabone a literata, litselana tse lebelang litsela tse kholo, le ho haha ​​lithaele tsa lebota kantle.

Mosebetsi oa Photocatalytic

Liphello tsa phuputso li fumane hore tlas'a ts'ebetso ea mahlaseli a letsatsi kapa mahlaseli a ultraviolet khanyeng, Ti02 e kenya tšebetsong le ho hlahisa li-radicals tsa mahala tse nang le ts'ebetso e phahameng ea catalytic, e ka hlahisang matla a matla a photooxidation le ho fokotsa matla, 'me e ka thusa le ho etsa photodegrade e fapaneng ea formaldehyde e khomaretsoeng holim'a metsi. tsa dintho.Joalo ka lintho tse phelang le lintho tse ling tse sa pheleng.E ka bapala mosebetsi oa ho hloekisa moea oa ka tlung.

Ts'ebetso ea tšireletso ea UV

Titanium dioxide leha e le efe e na le bokhoni bo itseng ba ho monya mahlaseli a ultraviolet, haholo-holo mahlaseli a nako e telele a mahlaseli a kotsi a kotsi 'meleng oa motho, UVA\UVB, a na le matla a matla a ho monya.Botsitso bo botle ba lik'hemik'hale, botsitso ba mocheso, bo se nang chefo le thepa e 'ngoe.Ultra-fine titanium dioxide e na le bokhoni bo matla ba ho monya mahlaseli a ultraviolet ka lebaka la boholo ba eona bo bonyenyane (bo bonaletsang) le ts'ebetso e kholoanyane.Ho feta moo, e na le 'mala o hlakileng oa molumo, abrasion e tlase, le ho hasana ho bonolo.Ho fihletsoe qeto ea hore titanium dioxide ke eona e sebelisoang ka ho fetesisa ea inorganic raw litlolong.Ho ea ka mesebetsi ea eona e fapaneng ea litlolo, litšoaneleho tse fapaneng tsa titanium dioxide li ka sebelisoa.Bosoeu le ho se bone ha titanium dioxide ho ka sebelisoa ho etsa litlolo hore li be le mebala e mengata e fapaneng.Ha titanium dioxide e sebelisoa e le motsoako o mosoeu, T681 anatase titanium dioxide e sebelisoa haholo-holo, empa ha matla a ho pata le ho hanyetsa khanya ho nkoa , Ho molemo ho sebelisa T689 rutile titanium dioxide.