Ngwa ọgwụgwọ mmiri mkpofu Electro-Fenton dabere na ụkpụrụ nke Fenton catalytic oxidation, nke na-anọchite anya usoro oxidation dị elu eji eme ihe maka mmebi na ọgwụgwọ nke nnukwu mkpokọta, ihe na-egbu egbu, na mmiri mkpofu organic.
Ọkà mmụta sayensị nke mba Fransị bụ Fenton mepụtara usoro ihe eji eme ihe Fenton na 1894. Isi ihe dị na mmeghachi omume ihe eji eme ihe Fenton bụ mmepụta ihe na-akpali akpali nke hydroxyl radicals (•OH) site na H2O2 n'ihu Fe2+. Nnyocha na teknụzụ electro-Fenton malitere na 1980s dị ka ụzọ isi merie oke nke usoro Fenton ọdịnala ma melite arụmọrụ ọgwụgwọ mmiri. Teknụzụ Electro-Fenton gụnyere mmepụta Fe2+ na H2O2 na-aga n'ihu site na ụzọ electrochemical, ha abụọ na-emeghachi omume ozugbo iji mepụta radicals hydroxyl na-arụ ọrụ nke ukwuu, na-eduga na mmebi nke ihe ndị sitere n'okike.
N'ụzọ bụ isi, ọ na-emepụta ihe ndị na-eme Fenton ozugbo n'oge usoro electrolysis. Isi ihe dị na mmeghachi omume electro-Fenton bụ mgbasa nke oxygen n'elu ihe dị na kathode kwesịrị ekwesị, na-eduga n'ọdịdị electrochemical nke hydrogen peroxide (H2O2). H2O2 emepụtara nwere ike imeghachi omume na Fe2+ catalyst na ngwọta ahụ iji mepụta ihe na-eme ka oxidizing dị ike, hydroxyl radicals (•OH), site na mmeghachi omume Fenton. Emeela ka mmepụta nke •OH site na usoro electro-Fenton kwado site na ule nyocha kemịkalụ na usoro spectroscopic, dị ka njide spin. Na ngwa bara uru, a na-eji ike oxidation siri ike nke •OH eme ihe iji wepụ ihe ndị na-adịghị agbanwe agbanwe nke organic.
O2 + 2H+ + 2e → H2O2;
H2O2 + Fe2+ → [Fe(OH)2]2+ → Fe3+ + •OH + OH-.
Teknụzụ Electro-Fenton na-arụ ọrụ nke ọma n'ịgwọ mmiri site na ebe a na-ekpofu ihe, mmiri mmiri dị n'ime ya, na mmiri mkpofu ụlọ ọrụ mmepụta ihe sitere na ụlọ ọrụ dịka kemịkalụ, ọgwụ, ọgwụ nje, agba agba, ákwà, na electroplating. Enwere ike iji ya na ngwa electrocatalytic dị elu iji melite mbibi nke mmiri mkpofu ebe a na-ewepụ CODCr. Na mgbakwunye, a na-eji ya maka ọgwụgwọ miri emi nke mmiri mkpofu site na ebe a na-ekpofu ihe, mmiri mmiri dị n'ime ya, na mmiri mkpofu ụlọ ọrụ mmepụta ihe sitere na kemịkalụ, ọgwụ, ọgwụ nje, agba agba, ákwà, electroplating, wdg, na-ebelata CODCr ozugbo iji mezuo ụkpụrụ mwepụ. Enwere ike ijikọ ya na "ngwa electro-Fenton pulsed" iji belata ọnụ ahịa ọrụ zuru oke.
Oge ozi: Sep-07-2023
