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Preparation method of neodymium-doped titanium base tin dioxide-antimony electrode

A technology doped with tin dioxide and neodymium, which can be used in chemical instruments and methods, electrodes, electrolytic components, etc., and can solve problems such as complex components

Inactive Publication Date: 2010-02-24
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In today's society, the types of pollutants discharged by humans into water bodies are increasing, and their components are becoming more and more complex, especially the discharge of a large amount of toxic and biodegradable organic matter, which poses great challenges to traditional wastewater treatment technologies.

Method used

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  • Preparation method of neodymium-doped titanium base tin dioxide-antimony electrode
  • Preparation method of neodymium-doped titanium base tin dioxide-antimony electrode
  • Preparation method of neodymium-doped titanium base tin dioxide-antimony electrode

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Embodiment

[0047] A kind of neodymium doped Ti / Sb-SnO 2 The preparation method of electrode, its preparation method is as follows:

[0048] 1) Electrode substrate pretreatment

[0049] The titanium wire specification of the electrode base titanium mesh is 1.5mm×1.0mm, the diamond mesh size is 3mm×8mm, and the pretreatment method is as follows:

[0050] (1) Grinding

[0051] First, mechanical polishing is used to remove oxides and dirt on the surface of the electrode substrate, and then the corners are polished with 600-grit sandpaper to make them smooth, and finally rinsed with deionized water;

[0052] (2) Alkaline washing

[0053] The whole electrode was immersed in 5% sodium carbonate (Na 2 CO 3 ) in the lotion, keep the pole pieces in a separated state, heat to boiling, keep for 1h, stop heating, cool, and rinse with deionized water;

[0054] (3) pickling

[0055] Submerge the entire electrode in oxalic acid washing solution with a mass concentration of 10%, treat it in a boil...

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Abstract

The invention relates to a preparation method of neodymium-doped titanium base tin dioxide-antimony electrode. The method comprises the following steps: 1) the pretreatment of electrode substrate: polishing, alkaline cleaning and pickling; 2) the preparation of masking liquid: dissolving SnCl4.5H2O, SbCl3 and Nd(NO3)3 according to a ratio of 100:15:1 in solvent to obtain the masking liquid; 3) thepreparation of electrode coating by using immersion method: (1) completely soaking the titanium electrode substrate in the masking liquid for 1min; (2) withdrawing the titanium electrode substrate, blowing away the excessive masking liquid with a blow drier; (3) drying in a baking oven at 100-120 DEG C for 10min to volatilize all the solvent; (4) placing the substrate in a muffle furnace to perform thermal oxidation at 550 DEG C for 15min; (5) cooling to room temperature, dipping again, drying, performing thermal oxidation and repeating the above steps for 15 times to obtain the Nb-doped Ti / Sb-SnO2 electrode. The Nb-doped Ti / Sb-SnO2 electrode prepared by the method of the invention has high oxygen evolution potential, catalytic performance and electricity.

Description

Technical field: [0001] The invention relates to a neodymium-doped titanium-based tin dioxide-antimony (Ti / Sb-SnO 2 ) The preparation method of the electrode belongs to the technical field of electrocatalytic water treatment. Background technique: [0002] In today's society, the types of pollutants discharged by humans into water bodies are increasing, and their components are becoming increasingly complex, especially the discharge of a large amount of toxic and biodegradable organic matter, which poses great challenges to traditional wastewater treatment technologies. People urgently need to develop new sewage purification treatment technology with good reliability, low cost and high benefit. [0003] Electrocatalytic technology is a potential clean treatment method. Compared with existing physical, chemical and biological treatment technologies, it has many unique advantages: [0004] 1 Wide range of uses. Electrochemical treatment technology can not only treat wastewa...

Claims

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Application Information

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IPC IPC(8): C25B11/04C02F1/461
Inventor 李善评连军锋李冲崔江杰王洪波
Owner SHANDONG UNIV
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