The Research Of The BDD/Ti Composite Film Electrochemical Characteristics

water resources are very scarce in China, the chaos of modern industrial wastewater discharge misplacing, agricultural pesticide spraying, municipal solid waste pollution and so on, causing the already scarce water resources is exacerbated extreme shortage of water has been contaminated by man can not be used. In this study, it is difficult for organic matter degradation of dye wastewater treatment.In this paper, boron-doped diamond films were experimental. Boron doped diamond has a conductivity due to experimental electrode materials can be used, it has a better general characteristics of the electrode material, the electrode has a lower background current, a wider potential window, super absorption of inert, high chemical stability and high physical stability, etc., to make it stand out in a number of selected electrodes, electrochemical studies of workers become the preferred electrode. Preparation of boron-doped diamond films now mature there are many preparation methods, this experiment relies on electrodes used in hot filament chemical vapor deposition method of preparation, the equipment is simple, easy-to-film, and easy maintenance.Composite electrode is made of titanium film substrate with a hot filament chemical vapor deposition of boron doped diamond film. Aperture base is covered with a metal titanium tube cut. Titanium film itself has a certain degree of filtration, can be blocked by macromolecular organic substances, which reduces the solution of the COD value, but eventually organic macromolecules titanium membrane pore blocking a large area, so the loss of filtering effect. Ti film deposited diamond films with the composition of the composite film electrodes. The electro-catalysis properties of diamond not only ensure the metal film on the sewage treatment effect and extend the film's use of time. Extend the utilization of titanium films. Only titanium membrane filter wastewater treatment to achieve good separation effect of organic matter, but soon disperse due to surface molecules resulting in the cumulative pore is blocked, the membrane flux declined rapidly, and ultimately unusable. In addition, the use of three different concentrations of carbon composite film electrode can not only ensure the treatment of dye water to maintain a high level of the membrane flux can be prolonged use of composite membrane treatment of dye in water, to extend the use of film time. By experiment, choose a highly efficient composite membrane is the main content of the experiment.