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

A technology of network structure and titanium dioxide, which is applied in the field of environmental protection technology and electrochemistry, can solve the problems of undiscovered patent documents, etc., and achieve the effects of enhanced binding force, strong electrocatalytic ability, and strong stability

Active Publication Date: 2019-07-23
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 antimony oxide electrode modified by titanium dioxide network structure and preparation method thereof
  • Titanium-based tin antimony oxide electrode modified by titanium dioxide network structure and preparation method thereof
  • Titanium-based tin antimony oxide electrode modified by 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 by a titanium dioxide network structure. The electrode includes a titanium matrix and a catalytic layer. The electrode is characterized in that the electrode also includes a middle layer, the middle layer of a titanium dioxide network structure is formed on the surface of the titanium matrix after the titanium matrix is hydrothermally synthesized, and the tin antimony oxide catalytic layer is formed on the middle layer of the titanium dioxide network structure by pulse electrodeposition and programmed temperature-rise annealing activation. The invention also relates to a preparation method of the titanium-based tin antimony oxide electrode modified by the titanium dioxide network structure. The preparation method is characterized in that the method includes the following steps: (1) pretreatment of the titanium matrix; (2) synthesis of the titanium dioxide network structure by a hydrothermal method; (3) hydrogenation treatment of the titanium dioxide network structure; and (4) preparation of a surface tin antimony oxide coating by pulse electrodeposition. The titanium-based tin antimony oxide electrode modified by the titanium dioxide network structure is scientific and reasonable in design, and has the advantages of strong stability, difficult falling of the catalytic layer, effective prevention ofcorrosion of the titanium matrix, prolonged service life of the electrode, strong electrocatalytic ability, low energy consumption of the electrode and the like.

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 Applications(China)
IPC IPC(8): C02F1/461
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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