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Titanium-based tin oxide antimony electrode modified with titanium dioxide network structure and preparation method thereof

A technology of network structure and titanium dioxide, applied in the field of environmental protection technology and electrochemistry, can solve the problems of undiscovered patent documents, etc., and achieve the effects of enhancing binding force, prolonging service life, and scientific and reasonable design

Active Publication Date: 2021-09-21
天津市大陆制氢设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Through the search of published patent documents, no published patent documents identical to this patent application have been found

Method used

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  • Titanium-based tin oxide antimony electrode modified with titanium dioxide network structure and preparation method thereof
  • Titanium-based tin oxide antimony electrode modified with titanium dioxide network structure and preparation method thereof
  • Titanium-based tin oxide antimony electrode modified with titanium dioxide network structure and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] A titanium-based tin-antimony oxide electrode modified with a titanium dioxide network structure, including a titanium substrate and a catalytic layer, and its innovation is that it also includes an intermediate layer. After the titanium substrate undergoes a hydrothermal synthesis reaction, titanium dioxide is formed on its surface The middle layer of the network structure, and then the surface tin antimony coating is formed on the middle layer of the network structure by pulse electrodeposition method and temperature-programmed annealing activation method, and the surface tin antimony oxide coating is the tin antimony oxide catalytic layer .

[0029] The surface of the middle layer of the titanium dioxide network structure is composed of mesh holes with an average diameter of 5 μm, and the mesh holes are covered with filamentous fibers, and the average width of each filamentary fiber is less than 100 nm.

[0030] A method for preparing a titanium-based tin oxide antim...

Embodiment 2

[0051] Step (1) is the same as step (1) in Example 1;

[0052] (2) Synthesis of titanium dioxide network structure by hydrothermal method

[0053] Using the hydrothermal method, use 0.025mol of sodium hydroxide, 6mL of absolute ethanol and 29mL of deionized water to prepare the precursor solution, put it in a 50mL polytetrafluoro reactor together with the pretreated titanium substrate, and put it at 200 °C Hydrothermal reaction at high temperature for 14 hours, after cooling with the furnace, take out the titanium substrate; soak it in 0.1mol / L hydrochloric acid for 9 hours, then rinse it repeatedly with deionized water and dry it; place the dried electrode in a muffle furnace, Raise the temperature at a heating rate of 10°C / min, keep it at 400°C for 3 hours, take it out after natural cooling, and obtain a titanium dioxide network structure;

[0054] (3) Hydrogenation treatment of titanium dioxide network structure

[0055] The cathodic electroreduction method is adopted, an...

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Abstract

The invention relates to a titanium-based tin-antimony oxide electrode modified with a titanium dioxide network structure, which includes a titanium substrate and a catalytic layer, and is characterized in that it also includes an intermediate layer, and the titanium substrate is formed on the surface of the titanium substrate after a hydrothermal synthesis reaction. The middle layer of the titanium dioxide network structure, and then a tin antimony oxide catalytic layer is formed on the middle layer of the network structure through a pulse electrodeposition method and a temperature-programmed annealing activation method. The present invention also relates to a method for preparing a titanium-based tin-antimony oxide electrode modified with a titanium dioxide network structure, which is characterized in that it comprises the following steps: (1) pretreatment of the titanium substrate; (2) synthesizing the titanium dioxide network structure by a hydrothermal method ; (3) hydrogenation treatment of titanium dioxide network structure; (4) pulse electrodeposition method to prepare surface tin oxide antimony coating. The design of the invention is scientific and reasonable, and has the advantages of strong stability, the catalytic layer is not easy to fall off, effectively prevents the corrosion of the titanium substrate, prolongs the service life of the electrode, has strong electrocatalytic ability, and has low energy consumption of the electrode.

Description

technical field [0001] The invention belongs to the field of environmental protection technology and electrochemistry, and relates to an electrode, in particular to a titanium-based tin antimony oxide electrode modified with a titanium dioxide network structure and a preparation method thereof. Background technique [0002] Water is an important component of life, and human activities cannot do without water. Although my country's total fresh water resources rank fourth in the world, its per capita water resources are only 1 / 4 of the world average. With the continuous improvement of my country's industrialization level, more and more organic substances have been widely used and entered into water bodies, causing serious pollution to the already scarce water resources. [0003] At present, the technologies for treating organic wastewater mainly include biodegradation, membrane separation technology, physical flocculation technology, photocatalytic oxidation technology, and e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25B11/00C02F1/46
CPCC02F1/46109C02F1/4672C02F2001/46142
Inventor 许卫许莉王也
Owner 天津市大陆制氢设备有限公司
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