Loaʻa i ka Nano-titanium dioxide TIO2 ka hana photocatalytic kiʻekiʻe a loaʻa nā waiwai optical waiwai nui.Me nā waiwai kemika paʻa a me ka nui o nā kumu waiwai, ʻo ia ka photocatalyst maikaʻi loa i kēia manawa.

Wahi a ke ʻano aniani, hiki ke hoʻokaʻawale ʻia i: T689 rutile nano titanium dioxide a me T681 anatase nano titanium dioxide.

Wahi a kona mau hiʻohiʻona, hiki ke hoʻokaʻawale ʻia i: hydrophilic nano titanium dioxide a me lipophilic nano titanium dioxide.

   Nano titanium dioxide TIO2ʻelua mau ʻano aniani: Anatase a me Rutile.ʻOi aku ka paʻa a me ka paʻa o Rutile titanium dioxide ma mua o ka anatase titanium dioxide, ʻoi aku ka paʻakikī, density, dielectric mau a me ka refractive index, a ʻoi aku ka kiʻekiʻe o kona mana huna a me ka mana tinting.ʻO ka anatase-type titanium dioxide he kiʻekiʻe o ka reflectivity i ka hapa hawewe pōkole o ke kukui ʻike ʻia ma mua o ka rutile-type titanium dioxide, he ʻulaʻula polū, a he haʻahaʻa haʻahaʻa haʻahaʻa ultraviolet ma mua o ka rutile-type, a he kiʻekiʻe ka hana photocatalytic ma mua o ke ʻano rutile.Ma lalo o kekahi mau kūlana, hiki ke hoʻololi ʻia ka anatase titanium dioxide i rutile titanium dioxide.

Nā noi mālama kaiapuni:

Me ka mālama ʻana i nā mea haumia (hydrocarbons, halogenated hydrocarbons, carboxylic acids, surfactants, dyes, nitrogen-containing organics, organic phosphorus pesticides, etc.), ka mālama ʻana i nā mea haumia inorganic (hiki i ka photocatalysis ke hoʻoponopono iā Cr6+, Hg2+, Pb2+, etc.) ʻO ka hoʻohaumia ʻana o nā ion metala kaumaha) a me ka hoʻomaʻemaʻe kaiapuni o loko (ka hoʻohaumia ʻana o ka amonia i loko, formaldehyde a me benzene e nā uhi ʻōmaʻomaʻo photocatalytic).

Nā noi i ka mālama ola kino:

Nano-titanium dioxide decomposes bacteria ma lalo o ka hana o photocatalysis e hoʻokō antibacterial hopena, pepehi bacteria a me nā mea hoʻomaʻi, a hiki ke hoʻohana 'ia no ka sterilization a me ka disinfection o ka wai home;ʻO ke aniani, nā seramika, a me nā mea ʻē aʻe i hoʻopiha ʻia me ka TIO2 photocatalysis e hoʻohana ʻia i nā keʻena maʻemaʻe like ʻole e like me nā halemai, nā hōkele, nā hale, a me nā mea ʻē aʻe.Hiki iā ia ke hoʻopau i kekahi mau pūnana maʻi kanesa.

Aia ka hopena bactericidal o TiO2 i kona hopena nui.ʻOiai ʻo ka titanium dioxide (TiO2 maʻamau) he hopena photocatalytic nō hoʻi, hiki iā ia ke hoʻohua i nā pālua electron a me nā lua, akā ʻo kona manawa e hiki ai i ka ʻili o ka mea ma luna o nā microseconds, a ua maʻalahi ke hui hou.He mea paʻakikī ke hoʻoikaika i ka hopena antibacterial, a me ka nano-dispersion degere o TiO2, nā electrons a me nā lua i hoʻohauʻoli ʻia e ka māmā e neʻe mai ke kino a i ka ʻili, a lawe wale i nā nanoseconds, picoseconds, a i ʻole femtoseconds.ʻO ka hui hou ʻana o nā electrons photogenerated a me nā lua ma ke ʻano o nā nanoseconds, hiki iā ia ke neʻe koke i ka ʻili, hoʻouka i nā meaola bacteria, a pāʻani i kahi hopena antibacterial pili.

Loaʻa i ka Anatase nano titanium dioxide ka hana kiʻekiʻe o ka ʻili, ka ikaika antibacterial ikaika, a maʻalahi ka hoʻopuehu ʻana o ka huahana.Ua hōʻike ʻia nā hoʻokolohua he ikaika bactericidal ikaika ka nano-titanium dioxide e kūʻē iā Pseudomonas aeruginosa, Escherichia coli, Staphylococcus aureus, Salmonella a me Aspergillus.Ua ʻae nui ʻia a hoʻohana nui ʻia i nā huahana antibacterial i ka ʻoihana textiles, ceramics, rubber, a me ka lāʻau lapaʻau.

ʻAi-fogging a me ka hoʻomaʻemaʻe iā ia iho:

Ma lalo o ka hoʻomālamalama kukui ultraviolet, komo ka wai i ke kiʻi titanium dioxide.No laila, hiki i ka uhi ʻana i kahi papa o ka nano-titanium dioxide ma nā aniani o ka lumi ʻauʻau, ke aniani kaʻa a me nā aniani hope hiki ke pāʻani i ka pale ʻana i ka fogging.Hiki iā ia ke hoʻomaopopo i ka hoʻomaʻemaʻe ponoʻī ʻana i ka ʻili o nā kukui alanui, nā kiaʻi alanui, a me ke kūkulu ʻana i nā ʻili pā o waho.

Hana photocatalytic

Ua ʻike nā hopena o ke aʻo ʻana ma lalo o ka hana o ka lā a i ʻole nā ​​kukui ultraviolet i ka mālamalama, hoʻāla ʻo Ti02 a hoʻohua i nā radical manuahi me ka hana catalytic kiʻekiʻe, hiki ke hana i ka photooxidation ikaika a me ka hoʻemi ʻana, a hiki ke hoʻoulu a hoʻoneʻe i nā ʻano formaldehyde i pili i ka ʻili. o na mea.E like me ka mea olaola a me kekahi mea anoano.Hiki ke pāʻani i kahi hana o ka hoʻomaʻemaʻe ʻana i ka ea o loko.

Hana pale UV

Hiki i kēlā me kēia titanium dioxide ke komo i nā kukuna ultraviolet, ʻoi aku ka nui o nā kukuna ultraviolet lōʻihi e pōʻino i ke kino o ke kanaka, UVA\UVB, loaʻa ka mana absorption ikaika.Paʻa kemika maikaʻi, kūpaʻa wela, non-toxicity a me nā waiwai ʻē aʻe.ʻOi aku ka ikaika o ka titanium dioxide ma muli o kona nui liʻiliʻi (transparent) a me ka hana ʻoi aku ka nui.Eia kekahi, loaʻa iā ia kahi leo kala maʻemaʻe, haʻahaʻa haʻahaʻa, a me ka maʻalahi maʻalahi hoʻopuehu.Ua hoʻoholo ʻia ʻo ka titanium dioxide ka mea i hoʻohana nui ʻia i nā mea hoʻonaninani inorganic.E like me kāna mau hana like ʻole i ka cosmetics, hiki ke hoʻohana ʻia nā ʻano like ʻole o ka titanium dioxide.Hiki ke hoʻohana ʻia ke keʻokeʻo a me ka opacity o ka titanium dioxide e hana i nā mea hoʻonaninani i nā kala ākea.Ke hoʻohana ʻia ka titanium dioxide ma ke ʻano he mea hoʻohui keʻokeʻo, hoʻohana nui ʻia ʻo T681 anatase titanium dioxide, akā i ka wā e noʻonoʻo ʻia ai ka mana huna a me ke kūpaʻa māmā, ʻoi aku ka maikaʻi o ka hoʻohana ʻana i ka T689 rutile titanium dioxide.