Muva nje, iqembu locwaningo likaSolwazi Kong Lingtao elivela e-Hefei Institute of Physics, i-Chinese Academy of Sciences lilungise ukwakheka okungenalutho kwe-amorphous Co/C ukuze kusebenze i-hydrogen peroxide (H2O2) ukuze kukhiqizwe umoya-mpilo we-singlet nokuqaphela ukukhethwa kwe-oxytetracycline (OTC) eyinkimbinkimbi. omatikuletsheni bamanzi. Ukuqedwa kwezocansi.Imiphumela yashicilelwa kujenali Chemical Engineering.googletag.cmd.push(function() {googletag.display('div-gpt-ad-1449240174198-2'); });
I-OTC iyimithi elwa namagciwane ye-tetracycline evame kakhulu ekufuyweni kwezilwane.Ingatholwa ezindaweni ezinokuzinza okuqinile kwebhayoloji, njengamanzi nomhlabathi, ezingakwazi ukususwa ngempumelelo ngezindlela zobuchwepheshe ezivamile.
Njengobuchwepheshe be-oxidation obuthuthukisiwe obulula nobusebenzayo, i-oxidation efana ne-Fenton ibhekwa njengendlela ephumelelayo yokulawula ukungcoliswa kwamanzi.Njengoba i-electrophilic non-radical, i-singlet oxygen ibonisa ikhono elihle kakhulu lokulwa nokuphazamiseka ngemuva kwe-substrates, okuwusizo ekususweni okukhethiwe. ukungcola okuphilayo okuqukethe amaqembu acebile nge-electron.Nokho, ekuphenduleni okuningi okufana ne-Fenton, isivuno se-oksijini ye-singlet siphansi futhi umnikelo mncane.
Kulolu cwaningo, abacwaningi baklame futhi bakha inhlanganisela ye-amorphous Co/C engenalutho enenani elikhulu lamaqembu asebenzayo aqukethe umoya-mpilo njengamaqembu e-carbonyl ne-hydroxyl asatshalaliswa phezulu.
Bathole ukwaziswa kwe-Co/C-3 ngokuthuthukisa isilinganiso se-cobalt ne-carbon, futhi bathola ukucekelwa phansi okungcono kakhulu kwe-20 ppm OTC ngokuvula i-H2O2 nge-pH engathathi hlangothi. imiphumela yokuhlolwa kokucisha kanye ne-electron paramagnetic resonance yaqinisekisa ukuthi i-singlett oxygen eguquliwe yayiwuhlobo oluyinhloko lwe-oxidizing, futhi ayikho i-hydroxyl radical. kuvele ohlelweni.
I-synergy phakathi kwamaqembu asebenzayo e-cobalt kanye ne-oksijini ngaphakathi kwempahla idlala indima ebalulekile ekusebenziseni i-hydrogen peroxide ekwakhekeni kwe-singlett oxygen.Ngaphezu kwalokho, izindlela ezingenzeka zokuwohloka kanye ne-ecotoxicity engaba khona ye-OTC kanye ne-intermediate yayo nayo yembulwa.
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