Hasken ultraviolet yana ɗaya daga cikin mahimman abubuwan da ke cikin hasken rana, kuma za a iya raba tsawon tsayinsu zuwa nau'i uku. Daga cikin su, UVC wani ɗan gajeren igiyar ruwa ne, wanda sararin samaniyar ozone ya rufe kuma ya toshe, ba zai iya isa ƙasa ba, kuma ba shi da wani tasiri a jikin mutum. Don haka, UVA da UVB a cikin haskoki na ultraviolet sune manyan igiyoyi masu tsayi waɗanda ke haifar da lahani ga fatar ɗan adam.

Hongwu Nanotitanium dioxide (TiO2) nanopowderyana da ƙananan ƙananan ƙwayoyin cuta, babban aiki, babban kaddarorin haɓakawa da babban hoto. Ba wai kawai zai iya yin tunani da watsar da haskoki na ultraviolet ba, amma kuma ya sha su, don haka yana da ƙarfin toshewa daga haskoki UV. Kyakkyawan kariya ce ta UV-garkuwar jiki tare da ingantaccen aiki.

The anti-UV ikon nano TiO2 yana da alaka da girman barbashi. Lokacin da barbashi girman titanium dioxide nanoparticle ne ≤300nm, ultraviolet haskoki tare da wavelengths tsakanin 190 da 400nm aka yafi nuna da warwatse; lokacin da barbashi girman titania nanopowder ne <200nm, da UV juriya ne yafi nuna da warwatse. Tsarin kariya na hasken rana na hasken ultraviolet a cikin tsakiyar raƙuman ruwa da yankuna masu tsayi yana da sauƙi mai sutura, kuma ikon kare rana yana da rauni; a lokacin da barbashi girman TiO2 nano foda ne tsakanin 30 da 100nm, da sha na ultraviolet haskoki a cikin matsakaici-kalaman yankin yana da muhimmanci inganta, da kuma garkuwa sakamako a kan ultraviolet haskoki ne mafi kyau. To, tsarinta na kariya daga rana shine ɗaukar hasken ultraviolet.

A takaice,titanium dioxide nano barbashiyana da hanyoyi daban-daban na kariya daga rana don tsayin raƙuman hasken ultraviolet daban-daban. Lokacin da tsayin raƙuman hasken ultraviolet ya yi tsayi sosai, aikin garkuwar nano titanium dioxide TiO2 ya dogara da ikon watsawa; lokacin da tsayin raƙuman hasken ultraviolet ya yi gajere, aikin garkuwar sa ya dogara da ƙarfin sha. Wato ikon nano titanium oxide na garkuwa da haskoki na ultraviolet an ƙaddara ta duka iyawar sa da ƙarfin watsawa. Karamin girman ɓangarorin farko, mafi ƙarfi ƙarfin ɗaukar UV na foda na nano titanium dioxide.

Gwaje-gwaje sun nuna cewa Hongwu Nano nano rutile titanium dioxide TiO2 yana da mafi kyawun kaddarorin garkuwar UV fiye da nano anatase TiO2. Nano TiO2 yana da kyakkyawan fata na aikace-aikacen a cikin ƙarewar anti-UV na yadudduka na auduga kuma a cikin suturar anti-ultraviolet akan gilashin insulating.