Preparation And Characterization Of Novel Electrolytic Antifouling Anode Materials

Rich marine resources for the production and life provides a great convenience,especially the coastal city.The scarcity of freshwater resources makes seawater a major cold source for circulating cooling water in coastal power plants.However,as a complex ecosystem of the ocean,when as a cooling water,where the marine life is easily attached to the facilities in the coastal power plant.How to prevent marine biological defacement,has been plagued by the major problems of coastal power plants.Electrochemical anti-fouling technology,it may be more common to say that electrolytic antifouling technology,the basic principle is through the electrode material surface to exert a certain size of the current,electrolysis of seawater to produce effective killing ingredients such as active chlorine(hypochlorous acid),peroxide Hydrogen and other oxidizing substances to quickly kill or remove the attached organisms,play the role of anti-fouling.As the resulting oxidizing substances can be quickly decomposed into non-toxic substances(chloride ions,oxygen,etc.).Therefore,as the most safe and effective electrochemical antifouling technology for controlling biological fouling,it is an anti-fouling technology with wide application prospect for coastal power plant.Its core lies in the screening and preparation of electrolytic antifouling anode materials.In this paper,the effects of various factors on the performance of anodic materials for electrolytic antifouling and its evaluation criteria were studied from the aspects of screening and pretreatment of anode materials.An electrodeposition experiment was developed to produce an active oxygen for electrolysis of seawater to prevent oceans Bio-stained metal oxide coating(Dimensionally Stable Anode DSA)composite electrode.The mechanism of redox reaction of metal oxide coating was discussed.The effect of composite electrode on the adhesion of Chlorella vulgaris and the energy dissipation and surface morphology of the composite electrode under different electrodeposition conditions were studied.This study is based on the conductive anode to find new advanced electrolytic antifouling properties in the marine environment,to carry out the research on the mechanism of the electrocatalytic material to prevent the attachment of marine organisms under the conditions of laboratory conditions under laboratory conditions,to explore and discover the pollution Damage to biological measures can help us to solve the problem of preventing the adhesion of marine fouling attached organisms on the surface of marine engineering equipment.The results of the study are as follows:(1)Titanium-based manganese dioxide coatings prepared by electrodeposition,twoelectrode electrodeposition,different processes based on composite electrodes,including but not limited to the temperature of the electrodeposition system,the concentration of electrodeposited electrolyte,electrodeposition Of the current density.According to the results of pretreatment of titanium anodes,it is shown that the structure and properties of the coatings prepared by electrodeposition are different under different control conditions.The surface of the coated electrode under normal temperature is rough and the surface of the electrode is tan,And the composite electrode prepared at 80 ℃ has good compactness and stability.(2)Electrochemical and scanning electron microscopy(SEM)show that the composite electrode prepared by the above method has a large surface area with sufficient surface corrosion resistance,and has certain stability and electrocatalytic activity.(3)After the antifouling performance test,it was found that the titanium-based manganese oxide composite electrode prepared by the method has good anti-chlorella adhesion effect.