Mahlaseli a ultraviolet ke e 'ngoe ea likarolo tsa bohlokoa tsa khanya ea letsatsi, 'me maqhubu a tsona a ka aroloa ka lihlopha tse tharo. Har'a tsona, UVC ke leqhubu le lekhutšoanyane, le kenngoa le ho thibeloa ke lera la ozone, le ke keng la fihla fatše, 'me ha le na phello e kotsi' meleng oa motho. Ka hona, UVA le UVB mahlaseling a ultraviolet ke lihlopha tse ka sehloohong tsa maqhubu a bakang tšenyo letlalong la motho.

Hongwu Nano'stitanium dioxide (TiO2) nanopowdere na le boholo ba likaroloana tse nyane, ts'ebetso e phahameng, thepa e phahameng ea refractive le photoactivity e phahameng. E ke ke ea bonahatsa le ho hasanya mahlaseli a ultraviolet feela, empa hape e a monya, kahoo e na le matla a matla a ho thibela mahlaseli a UV. Ke tšireletso e ts'episang ea 'mele e sireletsang UV e nang le ts'ebetso e phahameng.

Bokhoni ba anti-UV ba nano TiO2 bo amana le boholo ba eona. Ha boholo ba karoloana ea titanium dioxide nanoparticle e le ≤300nm, mahlaseli a ultraviolet a nang le maqhubu a pakeng tsa 190 le 400nm a bonahala haholo-holo a bile a hasane; ha boholo ba karoloana ea titania nanopowder e le <200nm, khanyetso ea UV e bonahala haholo ebile e hasane. Mochine o sireletsang letsatsi oa mahlaseli a ultraviolet libakeng tse bohareng ba maqhubu le maqhubu a malelele ke sekoahelo se bonolo, 'me matla a tšireletso a letsatsi a fokola; ha boholo ba karoloana ea TiO2 nano phofo e pakeng tsa 30 le 100nm, ho monya ha mahlaseli a ultraviolet sebakeng sa maqhubu a mahareng ho matlafatsoa haholo, 'me phello e sireletsang mahlaseli a ultraviolet ke eona e molemo ka ho fetisisa. Ha e le hantle, mokhoa oa eona oa ho sireletsa letsatsi ke ho monya mahlaseli a ultraviolet.

Ho phethela,titanium dioxide nano particlee na le mekhoa e fapaneng ea ts'ireletso ea letsatsi bakeng sa maqhubu a fapaneng a mahlaseli a ultraviolet. Ha leqhubu la mahlaseli a ultraviolet le batla le le telele, ts'ebetso e sireletsang ea nano titanium dioxide TiO2 e itšetlehile ka bokhoni ba eona ba ho hasana; ha bolelele ba maqhubu a mahlaseli a ultraviolet bo le bokhutšoanyane, ts'ebetso ea eona e sireletsang e itšetlehile ka matla a eona a ho monya. Ka mantsoe a mang, matla a nano titanium oxide a ho sireletsa mahlaseli a ultraviolet a khethoa ke matla a eona a ho monya le matla a ho hasana. Ha boholo ba karolo ea mantlha bo le nyane, ke moo matla a ho monya a UV a phofshoana ea nano titanium dioxide.

Liteko li bontša hore Hongwu Nano's nano rutile titanium dioxide TiO2 e na le thepa e sireletsang UV e betere ho feta nano anatase TiO2. Nano TiO2 e na le litebello tse ntle tsa ts'ebeliso ea ho felisoa ha lesela la k'hothone khahlanong le UV le ka likhalase tse thibelang mahlaseli a kotsi holim'a khalase e sireletsang mocheso.