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Bromine water is a highly oxidizing intense yellow to red mixture containing diatomic bromine (Br₂) dissolved in water (H₂O). It is often used as a reactive in chemical assays of recognition for substances which react with bromine in an aqueous environment with the halogenation mechanism. The most common compounds that react well with bromine water are phenols, alkenes, enols, the acetyl group, aniline, and glucose. In addition, bromine water is commonly used to test for the presence of an alkene which contains a double covalent bond which reacts with the bromine water which changes its color from an intense yellow to a colorless solution. Bromine water is also commonly used to check for the presence of an aldehyde group in compounds. In this reaction as well the color of bromine water is changed to colorless from yellow (oxidation process).
A trace Br-doped Co3O4 nanowire anode material, a preparation method and an electrochemical disinfection device
PendingCN122254603AWater contaminantsWaste water treatment from animal husbandryNanowireElectrochemistry
The present application relates to a kind of trace Br doped Co3O4 Nanowire anode material, preparation method and electrochemical disinfection device, and preparation method includes: the pretreated nickel foam is obtained by pickling, cleaning, drying foam nickel;Soluble cobalt salt, urea, ammonium fluoride and sodium bromide are dissolved in water, mixed to obtain precursor solution, pretreated nickel foam is immersed in and hydrothermal reaction is carried out, and cobalt oxide precursor containing bromine is grown on the foam nickel base;Then calcine in oxygen-containing atmosphere, anode material is obtained.The material is doped in the lattice by replacing the lattice oxygen of Co3O4 Br, and ammonium fluoride is used as structure directing agent to induce nanowire formation.The present application also provides an electrochemical disinfection device comprising the anode material.The present application realizes the selective generation of bromine radicals in high-chlorine and low-bromine water body by bromine doping, and at the same time, the electric perforation effect is generated by nanowire tip, so as to realize efficient disinfection and greatly reduce halogenated by-products, with the advantages of safety, speed, no secondary pollution.
Owner:SOUTH CHINA UNIV OF TECH