Nano-titanium dioxide TIO2 muaj kev ua haujlwm siab photocatalytic thiab muaj txiaj ntsig zoo kho qhov muag.Nrog cov khoom siv tshuaj lom neeg ruaj khov thiab ntau qhov chaw ntawm cov khoom siv raw, nws tam sim no yog qhov zoo tshaj plaws photocatalyst.
Raws li hom siv lead ua, nws tuaj yeem muab faib ua: T689 rutile nano titanium dioxide thiab T681 anatase nano titanium dioxide.
Raws li nws cov yam ntxwv saum npoo, nws tuaj yeem muab faib ua: hydrophilic nano titanium dioxide thiab lipophilic nano titanium dioxide.
Nano titanium dioxide TIO2Feem ntau muaj ob hom siv lead ua: Anatase thiab Rutile.Rutile titanium dioxide yog qhov ruaj khov thiab ntom dua li anatase titanium dioxide, muaj zog dua, qhov ntom ntom, dielectric qhov tsis tu ncua thiab qhov cuam tshuam tsis zoo, thiab nws lub zog zais thiab lub zog tinting kuj siab dua.Cov anatase-type titanium dioxide muaj kev cuam tshuam ntau dua nyob rau hauv qhov luv-yoj ntawm qhov pom lub teeb dua li rutile-type titanium dioxide, muaj cov xim xiav, thiab muaj peev xwm nqus ultraviolet qis dua li rutile-hom, thiab muaj cov haujlwm photocatalytic ntau dua. hom rutile.Hauv qee qhov xwm txheej, anatase titanium dioxide tuaj yeem hloov mus rau hauv rutile titanium dioxide.
Kev tiv thaiv ib puag ncig:
Nrog rau kev kho cov kuab paug organic (hydrocarbons, halogenated hydrocarbons, carboxylic acids, surfactants, dyes, nitrogen-muaj organics, organic phosphorus tshuaj tua kab, thiab lwm yam), kev kho cov kuab paug inorganic (photocatalysis tuaj yeem daws Cr6+, Hg2+, Pb2+, thiab lwm yam). Kev ua qias tuaj ntawm cov hlau hnyav ions) thiab kev ua kom huv ib puag ncig sab hauv tsev (kev puas tsuaj ntawm ammonia sab hauv tsev, formaldehyde thiab benzene los ntawm photocatalytic ntsuab coatings).
Daim ntawv thov hauv kev kho mob:
Nano-titanium dioxide decomposes cov kab mob nyob rau hauv qhov kev txiav txim ntawm photocatalysis kom ua tiav cov nyhuv antibacterial, tua kab mob thiab kab mob, thiab yuav siv tau rau sterilization thiab tshuaj tua kab mob ntawm domestic dej;iav, ceramics, thiab lwm yam. loaded nrog TIO2 photocatalysis yog siv nyob rau hauv ntau yam sanitary chaw xws li tsev kho mob, tsev so, tsev, thiab lwm yam. Cov khoom siv zoo tshaj plaws rau kev tua kab mob thiab deodorizing.Nws kuj tseem tuaj yeem ua rau qee yam mob qog noj ntshav ua rau mob qog noj ntshav.
Cov nyhuv bactericidal ntawm TiO2 nyob rau hauv nws cov nyhuv quantum loj.Txawm hais tias titanium dioxide (ib txwm TiO2) kuj muaj cov nyhuv photocatalytic, nws tseem tuaj yeem tsim cov khoom siv hluav taws xob thiab lub qhov, tab sis nws lub sijhawm kom ncav cuag qhov chaw ntawm cov khoom yog siab dua microseconds, thiab nws yooj yim rau recombine.Nws yog ib qho nyuaj rau exert cov nyhuv antibacterial, thiab cov nano-dispersion degree ntawm TiO2, cov electrons thiab qhov zoo siab los ntawm lub teeb migrate los ntawm lub cev mus rau saum npoo, thiab nws tsuas siv nanoseconds, picoseconds, los yog femtoseconds.Lub recombination ntawm photogenerated electrons thiab qhov yog nyob rau hauv qhov kev txiav txim ntawm nanoseconds, nws yuav sai sai tsiv mus nyob rau saum npoo, tua kab mob, thiab ua si ib tug coj antibacterial nyhuv.
Anatase nano titanium dioxide muaj kev ua haujlwm siab, muaj zog tiv thaiv kab mob, thiab cov khoom lag luam yooj yim tawg.Kev sim tau pom tias nano-titanium dioxide muaj peev xwm tiv thaiv kab mob Pseudomonas aeruginosa, Escherichia coli, Staphylococcus aureus, Salmonella thiab Aspergillus.Nws tau txais kev pom zoo thiab siv dav hauv cov khoom siv tshuaj tua kab mob hauv cov teb ntawm textiles, ceramics, roj hmab, thiab tshuaj.
Anti-fogging thiab self-tu txheej:
Nyob rau hauv ultraviolet lub teeb irradiation, dej kiag li infiltrates titanium dioxide zaj duab xis.Yog li ntawd, txheej txheej ntawm nano-titanium dioxide nyob rau hauv chav dej iav, iav tsheb thiab rearview iav tuaj yeem ua lub luag haujlwm hauv kev tiv thaiv pos huab.Nws tseem tuaj yeem paub txog kev tu tus kheej ntawm qhov chaw ntawm txoj kev teeb, txoj kev loj guardrails, thiab lub tsev sab nrauv phab ntsa.
Photocatalytic muaj nuj nqi
Cov txiaj ntsig ntawm txoj kev tshawb fawb pom tias nyob rau hauv qhov kev txiav txim ntawm lub hnub ci los yog ultraviolet rays nyob rau hauv lub teeb, Ti02 activates thiab generates dawb radicals nrog siab catalytic kev ua si, uas yuav ua tau kom muaj zog photooxidation thiab txo lub peev xwm, thiab muaj peev xwm catalyze thiab photodegrade ntau formaldehyde txuas rau saum npoo. ntawm cov khoom.Xws li cov organic teeb meem thiab qee qhov teeb meem inorganic.Nws tuaj yeem ua lub luag haujlwm ntawm purifying huab cua sab hauv tsev.
UV tiv thaiv kev ua haujlwm
Txhua lub titanium dioxide muaj qee lub peev xwm los nqus cov kab hluav taws xob ultraviolet, tshwj xeeb tshaj yog cov hluav taws xob ntev ultraviolet uas ua rau tib neeg lub cev, UVA UVB, muaj peev xwm nqus tau.Zoo heev tshuaj stability, thermal stability, non-toxicity thiab lwm yam khoom.Ultra-fine titanium dioxide muaj peev xwm nqus tau ultraviolet rays vim nws qhov me me me me (pob tshab) thiab kev ua haujlwm ntau dua.Tsis tas li ntawd, nws muaj cov xim ntshiab, tsis muaj kev puas tsuaj, thiab zoo dispersion yooj yim.Nws tau txiav txim siab tias titanium dioxide yog cov khoom siv inorganic feem ntau siv hauv cov tshuaj pleev ib ce.Raws li nws cov haujlwm sib txawv hauv cov tshuaj pleev ib ce, qhov sib txawv ntawm titanium dioxide tuaj yeem siv tau.Lub whiteness thiab opacity ntawm titanium dioxide tuaj yeem siv los ua cov tshuaj pleev ib ce muaj ntau yam xim.Thaum titanium dioxide siv los ua cov khoom siv dawb, T681 anatase titanium dioxide feem ntau yog siv, tab sis thaum lub zog zais thiab lub teeb ua haujlwm raug txiav txim siab, nws yog qhov zoo dua los siv T689 rutile titanium dioxide.
Post lub sij hawm: Jun-16-2021