Uburyo bwo gutwika imyuka ihumanya ikirere hakoreshejwe fotokemike mu kwangiza imyanda burimo inzira zirimo gutwika imyuka ihumanya ikirere hakoreshejwe fotokemike ikoresha ikoranabuhanga rya catalytic na non-catalytic. Ubwa mbere bukunze gukoresha ogisijeni na peroxide ya hydrogen nk'ibinyabutabire kandi bukishingikiriza ku rumuri rwa ultraviolet (UV) kugira ngo butangire gutwika imyuka ihumanya ikirere no kuyibohora. Ubwa nyuma, buzwi nka fotokemike ikoresha ikoranabuhanga rya catalytic, muri rusange bushobora gushyirwa mu byiciro bya catalysis ihuye n'iy'ibintu bitandukanye.
Mu kwangirika kw'ibintu bitandukanye biva kuri fotokatalike, ingano runaka y'ibikoresho bya semiconductor bishobora gukurura fotokatalike byinjizwa mu buryo bwanduye, hamwe n'ingano runaka y'imirasire y'urumuri. Ibi bituma habaho gukurura ibice bibiri bya "electron-hole" ku buso bwa semiconductor bishobora gukurura fotokatalike iyo bihuye n'urumuri. Ogisijeni yashongeshejwe, molekile z'amazi, n'ibindi bintu byinjijwe kuri semiconductor bikorana n'ibi bice bibiri bya "electron-hole", bikabika ingufu zirenze. Ibi bituma ibice bya semiconductor bitsinda inzitizi za thermodynamic reaction kandi bigakora nk'ibitera imbaraga mu buryo butandukanye bwo gukurura fotokatalike, bigatanga oxidative nyinshi nka •HO. Hanyuma izi radicals zoroshya kwangirika kw'imyanda binyuze mu nzira nko kongeramo hydroxyl, gusimbuza, no kohereza electron.
Uburyo bwo gusiga irangi ry’izuba burimo gusiga irangi ry’izuba, gusiga irangi ry’izuba, no gusiga irangi ry’izuba. Gusiga irangi ry’izuba rihuza gusiga irangi ry’izuba n’imirasire kugira ngo byongere umuvuduko n’ubushobozi bwo gusiga irangi ry’izuba ugereranije n’uburyo bwo kugabanya irangi ry’izuba ku giti cyaryo cyangwa uburyo bwo kuvura imirasire. Umucyo wa ultraviolet ukunze gukoreshwa nk’isoko y’imirasire muri gusiga irangi ry’izuba.
Byongeye kandi, ingano yagenwe ya okisidasiyo nka peroxide ya hydrogen, ozone, cyangwa catalysts zimwe na zimwe zigomba gushyirwa mu mazi. Ubu buryo ni ingirakamaro cyane mu gukuraho molekile ntoya za organic, nk'amabara, bigoye kuyangiza kandi afite uburozi. Uburyo bwo kugabanya ubushyuhe bwa photochemical butera radicals nyinshi zikora cyane mu mazi, zigahita zihungabanya imiterere y'ibintu bikomoka ku bimera.
Igihe cyo kohereza: Nzeri-07-2023
