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A titanium-based carbon-doped manganese oxide electrode for printing and dyeing wastewater treatment

A printing and dyeing wastewater and oxide technology, which is applied in textile industry wastewater treatment, water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of general stability of titanium-based manganese oxide electrodes, secondary pollution, and restricted industrial Application and other issues, to achieve the effect of simple and controllable operation, uniform and stable coating, and reduced energy consumption

Active Publication Date: 2021-10-08
DALIAN MARITIME UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are many kinds of metal oxides on the electrode active coating, and lead oxide, iridium oxide and ruthenium oxide are still the main ones, but they are prone to secondary pollution due to leaching in water, which limits their industrial application. , the transition metal manganese with low toxicity has become a research hotspot
Although the toxicity of manganese is very low, the stability of titanium-based manganese oxide electrodes is average, so the improvement of titanium-based manganese oxide electrodes

Method used

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  • A titanium-based carbon-doped manganese oxide electrode for printing and dyeing wastewater treatment
  • A titanium-based carbon-doped manganese oxide electrode for printing and dyeing wastewater treatment
  • A titanium-based carbon-doped manganese oxide electrode for printing and dyeing wastewater treatment

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Experimental program
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Embodiment 1

[0027] A method for preparing a titanium-blended carbon manganese oxide electrode, the preparation method comprising the steps of:

[0028] 1 Titanium base is first ground by coarse, fine sand paper, and then heating 10% sodium hydroxide solution to 90 ° C, base washing titanium plate 1 h, then etching for 2 h with boiling 10% oxalic acid solution;

[0029] 2 Mix 0.25 mol / l of manganese isopropyl alcohol solution with 2 mg / ml multi-wall carbon nanotube is mixed, and after 30min, under compressed air, spray the spray liquid in step 1 The resulting titanium base surface;

[0030] 3 The resulting product from which the product obtained is dried to the electrode surface without liquid;

[0031] 4 The product obtained by the step 3 was 18 ° C for 5 min;

[0032] 5 The above steps 2-4 After repeated operation 4 times, calcined at 350 ° C for 20 min to give a titanium-based mixed carbon manganese oxide electrode.

[0033] Depend on figure 1 To obtain, after doping with multi-walled c...

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Abstract

The invention relates to a titanium-based carbon-doped manganese oxide electrode for printing and dyeing wastewater treatment and a preparation method and application thereof, belonging to the field of water treatment engineering. The titanium-based carbon-doped manganese oxide electrode of the invention is: a composite nano-manganese oxide layer doped with multi-walled carbon nanotubes is sprayed on a titanium base. The titanium-based carbon-doped manganese oxide electrode of the invention improves the catalytic activity, conductivity and stability of the titanium-based manganese oxide electrode in electrocatalysis.

Description

Technical field [0001] The present invention relates to a titanium-blended carbon manganese oxide electrode for printing and dyeing wastewater and its preparation method and application thereof, belonging to the field of water treatment engineering. Background technique [0002] With the rapid development of my country's industrial, the emissions of industrial wastewater are also increasing, and my country as printing and dyeing countries, dyes are widely used in textile, printing and dyeing and other industries, including 10% of the textile industry and even more dyes during dyeing During the loss and discharge, dye wastewater became a hot spot of water treatment because of its carcinogenic and difficult biodegradability. [0003] Electrochemical catalytic oxidation technology is one of the methods commonly used in industrial wastewater treatment. Compared with other water treatment methods, there is no need to add an oxidizing agent, no secondary pollution. The equipment used b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/461C02F103/30
CPCC02F1/46109C02F2001/46138C02F2001/46142C02F2103/30
Inventor 赵娇徐雪璐朱益民刘伟凤金琪
Owner DALIAN MARITIME UNIVERSITY
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