Preparing method for titanium-based titanium sub-oxide electrode
A titanium oxide and electrode technology, which is applied in the field of electrochemical oxidation and degradation of sewage, can solve the problems of affecting the conductivity and activity of the electrode, low catalytic activity, deactivation, etc., to increase the roughness and surface area, improve the active area, The effect of improving binding force
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[0022] This embodiment selects Ti 4 o 7Titanium oxide powder with a content higher than 55% is plasma sprayed on the titanium substrate, the powder particle size is 50 μm, the arc current is 500A, the voltage is 50V, the powder feeding speed is 30g / min, the spraying distance is 200mm, and the spray gun moving speed is 30mm / s. The spraying thickness of the titanium dioxide coating is 350 μm.
[0023] When the titanium-based titanium suboxide electrode prepared in this example was used to electrolyze sewage, 200 mL of sewer and kitchen sewage were respectively measured for electrochemical degradation treatment. The test results are shown in the following table:
[0024]
[0025]
[0026] The test results show that the degradation of sewage reaches the standard, and the SS and BOD of sewage 5 and COD cr Significantly reduced, where COD cr The highest degradation rate.
[0027] The service life of the titanium-based titanium suboxide electrode prepared in this embodimen...
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