Preparation method of molybdenum and antimony co-doped titanium-based tin dioxide electrocatalytic electrode

A technology of tin dioxide and co-doping, which is applied in the direction of electrodes, electrolytic processes, electrolytic components, etc., can solve the problems of high price, and achieve the effect of thorough treatment, simple and controllable preparation method, and easy large-scale electrode preparation

Active Publication Date: 2016-05-25
沈阳柏益博硕科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, many scholars have prepared Ti / SnO doped with rare earth elements. 2 -Sb electrode, and study its optimal preparation process and its electrocatalytic oxidation performance. Although the performance of the prepared electrode has been improved, the price of rare earth elements is generally high, while the cost of molybdenum is low and has a wide range of sources, which can effectively improve Ti / SnO 2 - the performance of the Sb electrode, so the present invention proposes a novel molybdenum and antimony co-doped titanium-based tin dioxide electrocatalytic electrode and its preparation method for introducing molybdenum for the first time

Method used

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  • Preparation method of molybdenum and antimony co-doped titanium-based tin dioxide electrocatalytic electrode
  • Preparation method of molybdenum and antimony co-doped titanium-based tin dioxide electrocatalytic electrode
  • Preparation method of molybdenum and antimony co-doped titanium-based tin dioxide electrocatalytic electrode

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preparation example Construction

[0033] (2) Preparation of sol: using ethanol as the solvent, the atomic molar ratio of Sn, Sb, and Mo is 100:3:1~3, and the source of the above elements is SnCl 4 ·5H 2 O, Sb 2 o 3 , (NH 4 ) 6 Mo 7 o 24 and other raw materials, add complexing agent citric acid and ethylene glycol, wherein the molar ratio of metal ion, citric acid and ethylene glycol is 1:3:3; metal ion refers to the sum of Sn, Sb, Mo ions. After the raw materials are completely dissolved, fully stir in a 60°C water bath for 1 hour, and then stand and age in a 60°C water bath for 2 hours.

[0034] (3) Coating preparation: Take out the above-mentioned treated titanium electrode substrate, blot the moisture attached to the surface of the substrate, and then pull the coating film with an immersion pulling machine; the titanium substrate is immersed in the sol for 10 minutes, at a rate of 1mm / min Pull out the sol; after each film coating, dry in a blast drying oven at a drying temperature of 100-120°C and a ...

Embodiment 1

[0041] (2) Preparation of sol: use ethanol as the solvent, the atomic molar ratio of Sn, Sb, and Mo is 100:3:1, and the source of the above elements is SnCl 4 ·5H 2 O, Sb 2 o 3 , (NH 4 ) 6 Mo 7 o 24 and other raw materials, adding complexing agent citric acid and ethylene glycol, wherein the molar ratio of metal ions, citric acid and ethylene glycol is 1:3:3. After the raw materials are completely dissolved, fully stir in a 60°C water bath for 1 hour, and then stand and age in a 60°C water bath for 2 hours.

[0042] (3) Coating preparation: Take out the above-mentioned treated titanium electrode substrate, blot the moisture attached to the surface of the substrate, and then pull the coating film with an immersion pulling machine; the titanium substrate is immersed in the sol for 10 minutes, at a rate of 1mm / min Pull out the sol; after each film coating, dry in a blast drying oven at a drying temperature of 100°C and a drying time of 15 minutes; after drying, cool at roo...

Embodiment 2

[0047] (2) Preparation of sol: use ethanol as the solvent, the atomic molar ratio of Sn, Sb, and Mo is 100:3:2, and the source of the above elements is SnCl 4 ·5H 2 O, Sb 2 o 3 , (NH 4 ) 6 Mo 7 o 24 and other raw materials, adding complexing agent citric acid and ethylene glycol, wherein the molar ratio of metal ions, citric acid and ethylene glycol is 1:3:3. After the raw materials are completely dissolved, fully stir in a 60°C water bath for 1 hour, and then stand and age in a 60°C water bath for 2 hours.

[0048] (3) Coating preparation: Take out the above-mentioned treated titanium electrode substrate, blot the moisture attached to the surface of the substrate, and then pull the coating film with an immersion pulling machine; the titanium substrate is immersed in the sol for 10 minutes, at a rate of 1mm / min Pull out the sol; dry it in a blast drying oven after each film coating, the drying temperature is 120 °C, and the drying time is 10 min; after drying, it is coo...

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Abstract

The invention discloses a method for preparing a molybdenum and antimony co-doped titanium-based tin dioxide electrocatalytic electrode, which belongs to the technical field of catalytic electrodes. For the first time, the sol-gel method was used to prepare molybdenum and antimony co-doped titanium-based tin dioxide electrocatalytic electrodes. The sol is prepared according to the atomic ratio of 100:3:1~3, the dipping and pulling method is used to pull the coating film technology, the dipping time and pulling speed are controlled, and the stepwise programmed temperature rise sintering treatment is adopted to control the heat treatment temperature and heat treatment time of each heating stage , A new molybdenum and antimony co-doped titanium-based tin dioxide electrocatalytic electrode was prepared. The electrode prepared in the invention has low cost, uniform and dense electrode surface, good stability, and strong degradation ability to various organic pollutants with different structures such as phenol, caprolactam and active black KN-B.

Description

technical field [0001] The invention relates to a method for preparing a molybdenum and antimony co-doped titanium-based tin dioxide electrocatalytic electrode, which belongs to the technical field of catalytic electrodes. Background technique [0002] With the development of industry, the pollution of water bodies by human beings has become more and more serious. More and more biodegradable and biotoxic organic pollutants have appeared in sewage. Conventional physical and chemical methods are difficult to deal with these organic substances, and may produce For problems such as secondary pollution, traditional biological treatment methods can only effectively remove biocompatible organic matter in water bodies. Electrocatalytic oxidation technology has attracted widespread attention in the field of water treatment in recent years due to its characteristics of more thorough degradation of organic matter, high efficiency, and easy operation. [0003] The electrode is the core...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25B11/06C02F1/467
Inventor 梁吉艳耿聰李丹
Owner 沈阳柏益博硕科技有限公司
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