Ibhodlela kanye nengilazi yengilazi kunganqamula ngokuphumelelayo imisebe ye-ultraviolet, kuvimbele ukuwohloka kokuqukethwe.Isibonelo, ubhiya uvezwa ekukhanyeni okuluhlaza okwesibhakabhaka noma okuluhlaza okunobude begagasi obungaphansi kuka-550nm futhi uzokhiqiza iphunga, elaziwa ngokuthi ukunambitheka kwelanga.Iwayini, isoso nokunye ukudla nakho kuzothintwa ukukhanya kwe-ultraviolet okunekhwalithi engaphansi kuka-250nm.Izazi zaseJalimane zahlongoza ukuthi isenzo se-photochemical sokukhanya esibonakalayo siba buthaka kancane kancane sisuka ekukhanyeni okuluhlaza siye ekuqondeni kwamagagasi amade futhi sigcine cishe ku-520nm.Ngamanye amazwi, i-520nm iwubude obubalulekile, futhi noma yikuphi ukukhanya okufushane kunalokho kuzobangela ukuthi okuqukethwe kwebhodlela kubhujiswe.Ngenxa yalokhu, ingilazi iyadingeka ukuze imunce ukukhanya okungaphansi kuka-520nm, namabhodlela ansundu asebenza kahle kakhulu.
Uma ubisi luvezwa ekukhanyeni, lukhiqiza "ukunambitheka okukhanyayo" kanye "nephunga" ngenxa yokwakheka kwe-peroxides nokusabela okulandelayo.I-Vitamin C kanye ne-ascorbic acid nayo iyancishiswa, njengamavithamini A, Bg no-D. Umphumela wokukhanya kwikhwalithi yobisi ungagwenywa uma ukumuncwa kwe-ultraviolet kwengezwa ezingxenyeni zeglasi, ezinomthelela omncane embala nasekukhanyeni.Emabhodleleni namathini aqukethe izidakamizwa, ingilazi engu-2mm ewugqinsi iyadingeka ukuze imunce u-98% we-wavelength engu-410nm futhi idlule ku-72% we-wavelength engu-700nm, engakwazi nje ukuvimbela umphumela we-photochemical, kodwa futhi ibheke okuqukethwe kwebhodlela.
Ngaphandle kwengilazi ye-quartz, ingilazi evamile ye-sodium-calcium-silicon ingakwazi ukuhlunga imisebe ye-ultraviolet eminingi.Ingilazi ye-sodium-calcium-silicon ayikwazi ukudlula ekukhanyeni kwe-ultraviolet (200~360nm), kodwa ingadlula ekukhanyeni okubonakalayo (360~1000nm), okusho ukuthi, ingilazi ye-sodium-calcium-silicon evamile ingakwazi ukumunca imisebe ye-ultraviolet eminingi.
Ukuze kuhlangatshezwane nesidingo sabathengi sokubonakala obala kwamabhodlela engilazi, kungcono ukwenza ingilazi yebhodlela ikwazi ukumunca imisebe ye-ultraviolet futhi ingenzi umbala wayo omnyama, engeza i-CeO ekubunjweni 2 ingahlangabezana nemfuneko.I-Cerium ingaba khona njenge-Ce 3+ noma i-Ce 4+, zombili ezikhiqiza ukumuncwa okunamandla kwe-ultraviolet.Ilungelo lobunikazi laseJapane libika uhlobo lokwakheka kwengilazi equkethe i-vanadium oxide 0.01% ~ 1.0%, i-cerium oxide 0.05% ~ 0.5%.Ngemuva kwemisebe ye-ultraviolet, lokhu kusabela okulandelayo kwenzeka: Ce3++V3+ – Ce4++V2+
Ngokunwetshwa kwesikhathi sokushiswa kwemisebe, umthamo wemisebe ye-ultraviolet uyanda, isilinganiso se-V2+ sakhula, nombala wengilazi uyajula.Uma i-sake ihlushwa imisebe ye-ultraviolet ukuthi yonakale kalula, ithinte ukubonakala ngebhodlela lengilazi elinemibala, akulula ukubona okuqukethwe.Yamukela ukwakheka okwengeza umuntu i-CeO 2 kanye ne-V: O:, isikhathi sokufaka imali sifushane, vumela umthamo wokukhanya kwemisebe ye-ultraviolet ungabi mbala futhi ukhanye uma kuncane, kodwa isikhathi sokufaka idiphozi side, umthamo we-ultraviolet imisebe mkhulu kakhulu, ukuguquguquka kwengilazi, kudlule ukujula ukushintsha umbala, kungahlulela ubude besikhathi sediphozithi.
Isikhathi sokuthumela: May-06-2020