Kev kho cov dej khib nyiab Nitrobenzene los ntawm Electrocatalytic Oxidation Technology ntawm Hluav Taws Kub Kub Tube Electroplating

Kev kho cov dej khib nyiab Nitrobenzene los ntawm Electrocatalytic Oxidation Technology ntawm Hluav Taws Kub Kub Tube Electroplating

Thaum qhov kev siv tam sim no nce mus txog 2.0A, tus nqi tshem tawm ntawm nitrobenzene zoo li qub. Lub sijhawm no, nce qhov tam sim no tsis tau nce tus nqi tshem tawm. Kev soj ntsuam ua ntej qhia tau hais tias raws li qhov kev siv tam sim no nce, qhov concentration ntawm · OH hauv cov tshuaj nce ntxiv, thiab qhov kev tshem tawm ntawm nitrobenzene kuj nce ntxiv. Thaum cov adsorbed · OH ncav cuag ib qho nqi, qhov deactivation nce, uas txwv qhov kev txhim kho ntxiv ntawm kev tshem tawm tus nqi. Ntawm qhov tod tes, nyob rau hauv cov txheej txheem ntawm electrocatalytic oxidation ntawm nitrobenzene, lub ntsiab kev sib tw sab cov tshuaj tiv thaiv yog cov dej decomposition cov tshuaj tiv thaiv uas tshwm sim nyob rau thiab nyob ze ntawm lub anode nto, xws li kev khiav tawm ntawm O2. Cov tshuaj tiv thaiv mis yog raws li hauv qab no [12]:

2H2O-4e → 4H plus + O2↑

Yog li ntawd, txhawm rau txhawb cov tshuaj tiv thaiv thiab txhim kho kev ua haujlwm ntawm electrooxidation, nws yog ib qho tsim nyog los xyuas kom meej tias cov anode muaj qhov siab O2 khiav tawm. Nyob rau hauv lub electrocatalytic reactor, raws li ntau O2 microbubbles yog generated, cov tshuaj undergoes yuam convection thiab accelerates cov kua theem huab hwm coj hloov tus nqi. Nyob rau tib lub sijhawm, cov pa roj carbon activated nws tus kheej tuaj yeem tsis tsuas yog adsorb nitrobenzene ntawm qhov chaw, ua kom cov tshuaj tiv thaiv ceev, tab sis kuj ua lub luag haujlwm catalytic. Tag nrho cov no accelerates cov tshuaj tiv thaiv ceev, ceev cov tshuaj tiv thaiv electrolysis thiab desorbing cov activated carbon. Thaum adsorption, desorption, thiab electrolysis ncav cuag equilibrium, qhov kev tshem tawm cov tshuaj tiv thaiv nce mus txog stability [13].

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