Imikhiqizo

Umthelela we-Cl(-) ekonakalisweni kwe-oxidative ye-Acid Orange 7 (AO7) waphenywa ohlelweni lwe-UV/S2O8(2-) ukuze kucaciswe izindlela zokucwenga emanzini angcolile anosawoti.Inani eliphansi le-Cl(-) kanye ne-Br(-) lithuthukise ukubola kwe-AO7, kodwa umphumela onjalo wokuphromotha wehla kancane kancane ngomthamo okhulayo we-halide ion.I-mineralization kadayi itholwe ivinjwa yi-Cl(-), ikakhulukazi ngaphansi kwezimo ezine-acidic.Imiphumela ye-kinetics modelling ibonise ukuthi ingxenye yama-radicals e-oxidizing ahlukene incike kakhulu kokuqukethwe kwe-Cl(-).Ekuqaleni kwe-pH engu-6.5, i-Cl2(-) yayichichima kakhulu kune-SO4(-).Ukubaluleka kwe-Cl2(-) kokuwohloka kwe-AO7 kukhuphuke ngokugxila kwe-Cl(-) okwandayo futhi kweqa lokho kwe-SO4(-) kokuthi [Cl(-)]>1mM.Ngaphandle kwe-Cl(-), i-SO4(-) yayiyi-radical evelele yokuwohloka kwe-AO7 ngaphansi kwezimo ezine-acidic, kuyilapho i-OH idlanga kancane kancane nge-pH ephezulu.Ngaphansi kwezimo ezinosawoti ophakeme, i-OH eyengeziwe ingakhiwa futhi ibe nomthelela ekonakaleni kukadayi n ikakhulukazi endaweni ye-alkaline, okuholela ekusebenzeni kahle kokucekela phansi kwe-AO7.Imikhiqizo eminingana ene-chlorine itholwe lapho kukhona ama-ion e-chloride, futhi izindlela zokuwohloka ezisekelwe ku-SO4(-)/Cl2(-) ze-AO7 zahlongozwa.Lo msebenzi unikeza ukuqonda okwengeziwe kwezinqubo eziyinkimbinkimbi zokusabela zezinqubo ze-oxidation ezithuthukisiwe ezisekelwe ku-SO4(-) ezindaweni ezicebile nge-chloride.