Puas sib sib zog nqus ultraviolet UVC-LED tsim ozone thaum ua haujlwm?
Tsis tsim.
1. Lub teeb ultraviolet tsim ozone li cas?
Txoj kev xav, lub zog photon yog siab dua li lub zog ntawm daim ntawv cog lus los rhuav tshem cov tshuaj lom neeg. Yog li ntawd, ultraviolet rays nrog lub wavelength luv dua 243 nm tuaj yeem ua rau cov pa oxygen hauv huab cua lossis dej los tsim ozone. UVC-LEDs nrog wavelengths siab tshaj 243 nm tsis tsim ozone.
Lub teeb mercury uas tsis tshua muaj siab tsim ozone, vim tias lub vapor siab ntawm 1.3 ~ 13P lub teeb qis mercury ib txwm muaj 185nm nqus ultraviolet rays nyob rau hauv lub teeb emission spectrum. Lub teeb ultraviolet no yuav ua rau cov pa oxygen hauv huab cua los tsim cov tshuaj tiv thaiv thiab tig mus rau hauv ozone. Qhov no tseem ceeb txhais tau hais tias cov kab hluav taws xob ultraviolet rhuav tshem cov pa oxygen-oxygen covalent daim ntawv cog lus hauv cov pa molecule, thiab tom qab ntawd ua ke nrog cov pa molecule los ua O3. UVC-LED yuav tsis tsim ozone, vim hais tias covalent daim ntawv cog lus zog ntawm cov pa thiab oxygen yog siab li 5.1eV, uas yuav tsum tau ultraviolet rays nrog ib tug wavelength ntawm tsawg tshaj li 243nm yuav tsum tau cuam tshuam, thiab nws thiaj li ozone generated.
2. Vim li cas' t LED tsim ozone?
Lub teeb mercury uas tsis tshua muaj siab ua rau nce lub zog hloov pauv qhov tshwm sim ntawm luv-yoj ultraviolet los ntawm kev tswj lub vapor siab, tab sis nws tseem yuav nrog rau lwm qhov kev hloov pauv, feem ntau emitting lub teeb ntawm 254 thiab 185nm. UVC-LED thawj lub zog hloov pauv qhov tshwm sim yog qhov tseem ceeb, yog li nws tawm lub teeb ntshiab, thiab UVC-LED wavelength yog siab dua 255 nm.
Lub teeb mercury uas tsis tshua muaj siab yog lub teeb pom kev zoo, thiab nws txoj haujlwm siab zog hauv lub xeev tau txiav txim siab los ntawm cov khoom siv mercury. Yog li txawm hais tias muaj kev kub siab, nruab nrab-siab, thiab qis-siab mercury teeb, qhov sib txawv ntawm vapor siab yog tsuas yog los kho qhov tshwm sim ntawm kev hloov pauv ntawm cov xeev sib txawv, uas yog, qhov sib txawv ntawm cov yam ntxwv sib txawv. Yog li ntawd, cov teeb hluav taws xob qis mercury feem ntau tawm lub teeb ntawm 254 thiab 185nm. UVC-LED yog AlGaN semiconductor lub teeb-emitting diode nrog quantum zoo qauv. Kev hloov pauv E0 yog qhov tseem ceeb, thiab tsuas muaj ib lub ncov wavelength xwb, xws li 275nm. Nws tuaj yeem pom tias FWHM ntawm lub ncov tseem ceeb ntawm qhov sib sib zog nqus ultraviolet LED spectrum yog qhov qis dua li lub teeb xiav, uas tseem yog vim lub quantum zoo luminescence Piv nrog rau ntau qhov loj quantum dot lub teeb-emitting li, kev hloov hluav taws xob. yog ntau unitary. Vim tias tam sim no UVC-LEDs uas tuaj yeem ua rau huab hwm coj muaj lub teeb ci ntsa iab uas tsis qis dua 243nm, qhov tob-ultraviolet UVC-LEDs siv rau kev ua kom tsis muaj menyuam thiab tshuaj tua kab mob tsis tsim ozone.
