Ụzarị ultraviolet bụ otu n'ime ihe ndị dị mkpa nke ìhè anyanwụ, na ogologo ogologo ha nwere ike kewaa ụzọ atọ. N'ime ha, UVC bụ obere ebili mmiri, nke ozone oyi akwa na-ekpuchi ma na-egbochi ya, enweghị ike iru ala, ọ nweghịkwa mmetụta na-emerụ ahụ n'ahụ mmadụ. Ya mere, UVA na UVB na ụzarị ultraviolet bụ eriri ogologo ogologo nke na-emebi akpụkpọ ahụ mmadụ.

Hongwu Nanotitanium dioxide (TiO2) nanopowdernwere obere urughuru size, elu ọrụ, elu refractive Njirimara na elu fotoactivity. Ọ nwere ike ọ bụghị naanị ịtụgharị uche ma gbasaa ụzarị ultraviolet, kamakwa ọ na-amịkọrọ ha, si otú a na-enwe ike igbochi ụzarị UV. Ọ bụ ihe nchebe UV-shield na-ekwe nkwa nke nwere arụmọrụ dị elu.

The mgbochi UV ike nke nano TiO2 metụtara ya urughuru size. Mgbe urughuru size nke titanium dioxide nanoparticle bụ ≤300nm, ultraviolet ụzarị na wavelengths n'etiti 190 na 400nm na-tumadi egosipụta na gbasasịa; mgbe urughuru size nke titania nanopowder bụ <200nm, UV-eguzogide na-tumadi egosipụta na gbasasịa. Usoro nchebe anyanwụ nke ụzarị ultraviolet na etiti etiti na mpaghara ogologo oge bụ ihe mkpuchi dị mfe, na ike nchebe anyanwụ adịghị ike; mgbe urughuru size nke TiO2 nano ntụ ntụ dị n'etiti 30 na 100nm, absorption nke ultraviolet ụzarị na-ajụ-ebili mmiri mpaghara na-budata enwekwukwa, na shielding mmetụta na ultraviolet ụzarị kacha mma. Ọfọn, usoro nchebe anyanwụ ya bụ ịmịkọrọ ụzarị ultraviolet.

Na mkpokọta,titanium dioxide nano urughurunwere usoro nchebe anyanwụ dị iche iche maka ogologo ogologo oge dị iche iche nke ụzarị ultraviolet. Mgbe ogologo ikuku nke ụzarị ultraviolet dị ogologo, ọrụ nchekwa nke nano titanium dioxide TiO2 na-adabere na ike ịgbasa ya; mgbe ebili mmiri nke ụzarị ultraviolet dị mkpụmkpụ, ọrụ nchekwa ya na-adabere na ikike nnabata ya. Nke ahụ bụ, ikike nano titanium oxide iji chebe ụzarị ultraviolet na-ekpebi ma ikike nnabata ya na ike ịgbasa ya. Ka obere urughuru nha, ka ike nnabata UV nke nano titanium dioxide powders sikwuo ike.

Nnwale gosiri na Hongwu Nano's nano rutile titanium dioxide TiO2 nwere ihe mkpuchi UV dị mma karịa nano anatase TiO2. Nano TiO2 nwere ezigbo ngwa atụmanya na mgbochi UV imecha akwa akwa yana na mkpuchi mgbochi ultraviolet na iko mkpuchi.