Hababka oksaydheynta Photochemical ee hoos u dhaca wasakhowga waxaa ka mid ah hababka ku lug leh oxidation sawir-kimikaad iyo katalytic labadaba. Kuwa hore waxay inta badan u isticmaalaan ogsijiin iyo hydrogen peroxide sida oksaydhiyeyaasha waxayna ku tiirsan yihiin iftiinka ultraviolet (UV) si ay u bilaabaan oksaydhka iyo kala-goynta wasakhaha. Midda dambe, oo loo yaqaan oxidation photocatalytic, guud ahaan waxa loo kala saari karaa mid isku mid ah iyo catalysis kala duwan.
Hoos-u-dhac photocatalytic-ka kala duwan, qaddar gaar ah oo ah walxo semiconductor ah oo sawir-qaade ah ayaa lagu soo bandhigaa nidaamka wasakhaysan, oo ay weheliso cadad gaar ah oo shucaac iftiin ah. Tani waxay keenaysaa xamaasadda lammaanaha "daloolka elektiroonigga ah" ee dusha sare ee semiconductor-ka sawir-qaadista ee hoos yimaada iftiinka iftiinka. Ogsajiinta kala diri, molecules-ka biyaha, iyo walxaha kale ee lagu dhejiyay semiconductor waxay la falgalaan lammaanahan "dalool elektarooniga ah", iyaga oo kaydinaya tamar xad dhaaf ah. Tani waxay u oggolaanaysaa qaybaha semiconductor-ka inay ka gudbaan caqabadaha falcelinta kuleyliyaha oo ay u dhaqmaan sidii kicinta falcelinno kicineed oo kala duwan, soona saaraya xag-jiryo oksaydhiye sare leh sida •HO. Xagjirayaashani waxay markaas fududeeyaan xaalufka wasakhowga iyada oo loo marayo habab ay ka mid yihiin isku-darka hydroxyl, beddelka, iyo wareejinta elektaroonigga ah.
Hababka oksaydhka sawir-kimikaad waxay ka kooban yihiin oksaydhaynta sawir-qaadista, oksaydhka sawir-qaadista, iyo oksaydhka sawir-qaadista. oxidation Photochemical waxay isku daraysaa oksaydhka kiimikada iyo shucaaca si kor loogu qaado heerka iyo awoodda oksaydhka ee falcelinta oksaydhka marka la barbar dhigo oksaydhka kiimikaad shaqsiyeed ama daawaynta shucaaca. Iftiinka ultraviolet waxaa badanaa loo isticmaalaa sida isha shucaaca ee oksaydhka sawir-qaadista.
Intaa waxaa dheer, xaddi hore loo sii go'aamiyay oo oksaydhiyeyaasha sida hydrogen peroxide, ozone, ama kiciyayaal gaar ah waa in la soo geliyo biyaha. Habkani waa mid aad waxtar u leh in laga saaro unugyada yaryar ee organic, sida midabada, kuwaas oo ay adag tahay in la hoos u dhigo oo ay yeeshaan sunta. Dareen-celinta oksaydhka ee sawir-kimikaad waxay abuurtaa xag-jiryo badan oo firfircoon oo biyaha ku jira, kuwaas oo si diyaar ah u carqaladeeya qaab-dhismeedka isku-dhafka dabiiciga ah.
Waqtiga boostada: Sebtembar-07-2023
