Icupa kandi rishobora ibirahure birashobora guca neza imirasire ya ultraviolet, bikarinda kwangirika kwibirimo.Kurugero, byeri ihura nubururu cyangwa icyatsi kibisi gifite uburebure buri munsi ya 550nm kandi bizatanga impumuro, izwi nkuburyohe bwizuba.Divayi, isosi nibindi biribwa nabyo bizagerwaho nurumuri ultraviolet rufite ubuziranenge buri munsi ya 250nm.Intiti z’Abadage zasabye ko urumuri rugaragara rwibikorwa bya fotokimiki bigenda bigabanuka buhoro buhoro kuva kumucyo wicyatsi kugera kumurongo muremure kandi bikarangirira kuri 520nm.Muyandi magambo, 520nm nuburebure bukomeye bwumuraba, kandi urumuri urwo ari rwo rwose rugufi kurenza ibyo bizatera ibiri mumacupa kurimbuka.Nkigisubizo, ikirahuri kirasabwa gukuramo urumuri munsi ya 520nm, kandi amacupa yumukara akora neza.
Iyo amata ahuye numucyo, itanga "uburyohe bworoshye" n "" impumuro "bitewe no gukora peroxide hamwe nigisubizo cyakurikiyeho.Vitamine C na aside ya asikorbike nayo iragabanuka, kimwe na vitamine A, Bg na D. Ingaruka z'umucyo ku bwiza bw’amata zirashobora kwirindwa iyo kwinjiza ultraviolet byongewe mu bice by'ibirahure, bidafite ingaruka nke ku ibara no kurabagirana.Ku macupa n'amabati arimo ibiyobyabwenge, ikirahure cya 2mm kirasabwa gukuramo 98% yuburebure bwa 410nm kandi bikanyura kuri 72% yuburebure bwa 700nm, ntibishobora gukumira gusa ingaruka zifotora, ariko kandi bikanareba ibikubiye mu icupa.
Usibye ikirahuri cya quartz, ibirahuri bisanzwe bya sodium-calcium-silicon birashobora gushungura imirasire ya ultraviolet.Sodium-calcium-silicon ikirahure ntishobora kunyura mumucyo ultraviolet (200 ~ 360nm), ariko irashobora kunyura mumucyo ugaragara (360 ~ 1000nm), nukuvuga, ikirahuri gisanzwe cya sodium-calcium-silicon kirashobora gukurura imirasire myinshi ya ultraviolet.
Kugirango uhuze ibyifuzo byabaguzi kugirango habeho gukorera mu icupa ryibirahure, nibyiza gukora ikirahure cyamacupa gishobora gukuramo imirasire ya ultraviolet kandi ntigire ibara ryijimye, ongeramo CeO mubice 2 bishobora kuzuza ibisabwa.Cerium irashobora kubaho nka Ce 3+ cyangwa Ce 4+, byombi bitanga imbaraga za ultraviolet.Ipatanti y'Ubuyapani ivuga ubwoko bw'ikirahure kirimo oxyde ya vanadium 0.01% ~ 1.0%, oxyde cerium 0.05% ~ 0.5%.Nyuma yo kurasa ultraviolet, reaction zikurikira: Ce3 ++ V3 + - Ce4 ++ V2 +
Hamwe no kwagura igihe cyo kurasa, ikigereranyo cyimishwarara ya ultraviolet cyiyongereye, igipimo cya V2 + cyiyongera, kandi ibara ryikirahure ryimbitse.Niba kubwikibazo cya ultraviolet irrasiyoya ishobora kwangirika byoroshye, bigira ingaruka kumucyo hamwe nicupa ryikirahure cyamabara, ntabwo byoroshye kureba ibirimo.Emera ibihimbano byongerera umuntu CeO 2 na V: O:, igihe cyo kubitsa ni kigufi, uhangane na ultraviolet irradiation dose kugirango itagira ibara kandi ibonerana mugihe gito, ariko igihe cyo kubitsa ni kirekire, dose ya ultraviolet irrasiyoya irakabije, ibara ryikirahure, unyuze mubwimbike bwa amabara, arashobora kumenya uburebure bwigihe cyo kubitsa.
Igihe cyo kohereza: Gicurasi-06-2020