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The electrode is the core of the electrochemical water treatment technology, impact the effectiveness and cost of the electrochemical water treatment. Which, boron-doped diamond thin film electrodes because of its excellent physical properties, electrochemical properties, and high catalytic activity attracted the majority of the attention of scholars. This thesis is prepared from DC hot cathode CVD technology boron-doped diamond film electrode as the anode material, the main research content, organic degradation of the electrode to carry out the electrode preparation, characterization, and electrocatalysis degradation of organics phenol and double phenol A study analyzed the main factors affecting the electro-catalytic activity, and electrochemical degradation process, the electro-catalytic reaction mechanism was discussed. In this thesis, using the dc hot cathode CVD technique, p-type monocrystalline silicon substrate, H 2 , the CH 4 reaction gas B (OCH 3 ) 3 dopant in CH 4 : H 2 : B (OCH 3 ) < sub> 3 flow ratio of 5:190:10, a substrate temperature of 1000 ° C conditions BDD electrode was prepared. By SEM, Raman and XRD characterization of thin film, and studies have shown, obtained under the conditions of the electrode surface dense, uniform crystals, diamond high purity, surface cracking phenomenon. Phenol and endocrine disruptor bisphenol A target organisms, the effects of the initial target concentration, reaction current density and the initial pH value of the electrocatalytic rate. Found that the the BDD electrode catalytic oxidation of organic pollutants in line with a kinetic model, the reaction rate by the maximum current density, followed by the initial concentration and initial pH value of the reaction rate. In addition, the above three electrolysis conditions on the current efficiency of the reaction solution was also have different degrees of impact. HPLC, GC-MS detection means of degradation of phenol and bisphenol A in the BDD electrode electrochemical reaction intermediates were detected, and then infer both BDD electrode electrochemical degradation process. The results show that, compared to the straight-chain organic acids, BDD electrode with the ring structure of aromatic organic compounds with high electrocatalytic activity and electrochemical degradation process, the types of produce cyclic intermediates accumulation is not obvious, The acidic organic compounds electrochemical degradation is slow, the resulting reaction solution to sustain for a long time in an acidic environment. Therefore, the electrode can achieve rapid conversion of biodegradable organics, and to facilitate the subsequent biological treatment. Phenol solution BDD electrode using cyclic voltammetry method (CV) analysis of direct electro-catalytic oxidation of electrodes, results showed that the phenol in the electrode reaction is irreversible, and control-oriented response to the diffusion process . Practical application, by improving the mass transfer effects, etc. to enhance the reaction effect, and improve the reaction efficiency.
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