Uburyo bwa okiside ya Photochemiki yo kwangiza imyanda ihumanya harimo inzira zirimo okiside ya catalitiki na catalitiki. Abambere bakunze gukoresha ogisijeni na hydrogen peroxide nka okiside kandi bakishingikiriza kumucyo ultraviolet (UV) kugirango batangire okiside no kubora. Iyanyuma, izwi nka okiside ya fotokatike, muri rusange irashobora gushyirwa mubikorwa nka catalizike ya bahuje ibitsina.
Mu kwangirika kwa fotokateri ya heterogene, umubare munini wibikoresho bya semiconductor bifotora byinjizwa muri sisitemu yanduye, bigahuzwa nimirasire yumucyo runaka. Ibi bivamo gushimishwa na "electron-umwobo" kubiri hejuru ya fotosensitif ya semiconductor hejuru yumucyo. Umwuka wa ogisijeni, molekile zamazi, nibindi bintu byamamajwe kuri semiconductor bikorana na ziriya "elegitoroniki-umwobo", bikabika ingufu zirenze. Ibi bituma uduce duto twa semiconductor dushobora gutsinda inzitizi ziterwa nubushyuhe bwa termodinamike kandi bigakora nka catalizike mubikorwa bitandukanye bya catalitiki, bikabyara radicals ya okiside cyane nka • HO. Izi radicals noneho zorohereza iyangirika ryimyanda ihumanya binyuze mubikorwa nka hydroxyl yongeyeho, gusimbuza, no kohereza electron.
Uburyo bwa okiside ya Photochemiki ikubiyemo okiside ya fotosensitike, okiside ifotora, hamwe na okiside ya fotokatike. Okiside ya Photochemiki ikomatanya okiside yimiti nimirasire kugirango yongere umuvuduko nubushobozi bwa okiside ya reaction ya okiside ugereranije na okiside ya chimique cyangwa imiti ivura imirasire. Umucyo Ultraviolet ukunze gukoreshwa nkisoko yimirasire muri okiside ya Photocatalytic.
Byongeye kandi, umubare wateganijwe wa okiside nka hydrogen peroxide, ozone, cyangwa catalizator zimwe zigomba kwinjizwa mumazi. Ubu buryo bufite akamaro kanini mugukuraho molekile ntoya, nkamabara, bigoye gutesha agaciro no kugira uburozi. Photochemical oxyde reaction itanga radicals nyinshi zidasanzwe mumazi, bihungabanya byoroshye imiterere yibintu kama.
Igihe cyo kohereza: Nzeri-07-2023
