Peparation Of F^-Doped Ti/PbO₂Electrode And Application Of Biological Membrane Electrode In Wastewater Treatment

In recent years, human environment has been a huge challenge and threat，organicindustrial wastewater treatment has increasingly become a topic of concern. Based onthe analysis of the current wastewater treatment, it is not difficult to find that animportant cause of pollution untreated and treated wastewater still cannot reachcertain standards. In many wastewater treatment methods, electrochemical treatmentmethod because of its efficient, green features gets people’s attention. Ti/PbO2electrode is used as a kind of excellent electrocatalytic material in view of its goodconductivity, catalytic activity, high oxygen overpotential and low price in applicationto wastewater treatment, electrochemical synthesis and so on. Modification of thiselectrode is the focus of the present study, by doping ion electrode structure can bechanged. Changing the component of solution for electroplating, then we havecompared the properties of Ti/PbO2electrode according to add F－into the solution.At last, we have studied three-dimensional growing mechanism of F－doped PbO2electrode by SEM、XRD、XPS and CV.After adding F－into the solution, PbO2electrodeposition process fall underinfluence and prepare the electrode take on nano-size. The function of F－is restrainthe growing rate on the fast-growing crystal surface and shrink crystal obviously. Wehave cognized PbO2electrodeposition process ulteriorly. First, it is electrolysis ofwater, oxide of hydroxyl free-radicel adsorbed on the surface, subsequently,Pb2+combine with them and change H+out. However, it is occur that Pb(Ⅱ) oxidateto PbO2inside the electrode.The main object of this research is to separate an efficient2，4-dichlorophenoldegeneration bacteria，and the preliminary study of degeneration nature of the strainswill lay the foundation for the biological treatment of2,4-dichlorophenol waste water.In summary, this article is relying on wastewater treatment applications as background.And we got a number of fundamental researches which provide references for futureexperiments and applied research.