Ntawm peb hom UV LED teeb,254nm UVC LEDmuaj qhov ua kom tsis muaj menyuam zoo dua li365nm thiab 395nm UVA LED. Yog vim li cas yog tias muaj qhov sib txawv tseem ceeb hauv kev puas tsuaj thiab kev ua haujlwm ntawm cov kab hluav taws xob ultraviolet hauv cov kab sib txawv ntawm cov kab mob. Cov hauv qab no yog ib qho kev ntsuam xyuas tshwj xeeb:
1. 254nm yog thawj qhov kev xaiv rau kev ua kom tsis muaj menyuam
Nws tuaj yeem ua tsis tau cov kab mob sai sai, cov kab mob (xws li SARS-CoV-2) thiab pwm.
365nm / 395nm UVA LED tsis haum rau kev tua kab mob ib leeg tshwj tsis yog nws tau ua ke nrog cov khoom siv photocatalytic (xws li TiO₂) los txhim kho cov nyhuv.
2. Kev tshuaj xyuas qhov sib txawv tseem ceeb
(1) DNA absorption ncov txiav txim siab ua kom tsis muaj menyuam
Microbial DNA / RNA muaj qhov nqus tau zoo tshaj plaws ntawm 260-265nm wavelength (nce siab ze rau 254nm), thaum 365nm / 395nm nyob deb ntawm qhov ntau, thiab lub zog tsis txaus los cuam tshuam ncaj qha rau cov khoom siv caj ces.
Lub zog photon ntawm 254nm (kwv yees 4.9 eV) ntau dua li ntawm 365nm (txog 3.4 eV), uas tuaj yeem ua txhaum cov saw DNA ncaj qha.
(2) Cov xwm txheej siv tau
254nm UVC LED:
Siv nyob rau hauv siab -kev ua kom tsis muaj menyuam zoo xws li cov cuab yeej kho mob, kev kho dej, thiab tshuaj tua kab mob hauv huab cua.
Yuav tsum muaj kev tiv thaiv nruj (tsis txhob raug ntawm daim tawv nqaij / qhov muag).
365nm / 395nm UVA LED:
Feem ntau yog siv rau UV kua nplaum kho, kuaj pom fluorescence, kab ntxiab, thiab lwm yam.
Yog tias yuav tsum tau ua kom tsis muaj menyuam, nws yuav tsum tau ua ke nrog cov khoom siv hluav taws xob lossis cov tshuab photocatalytic (xws li UV + TiO₂), tab sis qhov ua tau zoo tseem qis dua UVC.
3. Ceev faj
Kev Nyab Xeeb Kev Nyab Xeeb:
254nm UVC yog teeb meem rau cov ntaub so ntswg lom thiab yuav tsum tau siv nyob rau hauv ib puag ncig tsis muaj neeg siv los yog nruab nrog cov ntsuas kev nyab xeeb.
Ntev - raug rau 365nm / 395nm UVA kuj tseem tuaj yeem ua rau tawv nqaij laus lossis qhov muag puas, tab sis qhov kev pheej hmoo qis dua.
Khoom siv compatibility:
254nm tuaj yeem ua kom cov yas / roj hmab aging, thaum 365nm / 395nm yog cov phooj ywg ntau dua rau cov ntaub ntawv.
4. Lwm txoj kev daws teeb meem
Yog xav tau tshuaj tua kab mob kom zoo: xav txog275nm UVC LED(cov nyhuv sterilization yog ze rau 254nm, tab sis me ntsis mob rau tib neeg lub cev).
Nto + huab cua kom huv si tua kab mob: 254nm + photocatalysis (xws li TiO₂ txheej) tuaj yeem txhim kho kev tiv thaiv.
Yog tias kev ua kom tsis muaj menyuam yog qhov yuav tsum tau ua, 254nm UVC LED yog qhov kev xaiv zoo xwb; 365nm / 395nm UVA LED tsuas yog tsim rau cov uas tsis yog -sterilization scenarios. Thaum xaiv, koj yuav tsum ntsuas qhov ua tau zoo, kev nyab xeeb thiab tus nqi.
