Nyob rau hauv qhov xwm txheej, photochemistry yog qhov tseem ceeb heev li nws yog lub hauv paus ntawm photosynthesis, pom, thiab tsim cov vitamin D nrog lub hnub ciPhotochemical cov tshuaj tiv thaiv mus txawv dua li qhov kub thiab txias.. … Photochemistry kuj yog kev puas tsuaj, raws li qhia los ntawm photodegradation ntawm plastics.
Photochemistry ua haujlwm li cas?
Photochemistry yog lub hauv paus txheej txheem rau txhua yam ntawm photobiology. Thaum lub molecule absorbs photon ntawm lub teeb, nws cov hluav taws xob qauv hloov, thiab nws cuam tshuam nrog lwm cov molecules. … Thawj Txoj Cai ntawm Photochemistry hais tias lub teeb yuav tsum tau absorbed rau photochemistry tshwm sim.
Qhov tseem ceeb tshaj plaws hauv cov tshuaj tiv thaiv photochemical yog dab tsi?
Lub photolytic ultraviolet (UV) thiab luv wavelength pom hluav taws xob (∼290–500 nm) yog lub luag haujlwm tseem ceeb rau cov tshuaj tiv thaiv photochemical. Hauv ntau cov dej saum npoo av, chromophoric yaj organic teeb meem (CDOM) dominates qhov nqus ntawm photolytic hnub ci hluav taws xob.
Vim li cas cov tshuaj tiv thaiv photochemical tseem ceeb heev hauv huab cua?
Nyob rau hauv ib puag ncig chemistry, cov tshuaj tiv thaiv photochemical yog ntawm tseem ceeb heev rau cov kab chemistry ntawm huab cua. … Photochemically pib tshwm sim kuj yog lub luag hauj lwm rau tsim tag nrho cov tseem ceeb hydroxyl radical, ib tug tseem ceeb intermediate nyob rau hauv lub trace chemistry ntawm lub qis cua.
Dab tsi yog stark Einstein txoj cai ntawm photochemical sib npaug sau nws qhov tseem ceeb rau quantum yield?
Txoj cai thib ob ntawm photochemistry, Stark-Einstein txoj cai, hais tias rau txhua lub photon ntawm lub teeb absorbed los ntawm cov tshuaj lom neeg, tsuas yog ib qho molecule yog qhib rau cov tshuaj tiv thaiv tom qab.… Qhov ua tau zoo uas cov txheej txheem photochemical tshwm sim yog muab los ntawm nws cov Quantum Yield (Φ).
