Three-dimensional porous titanium substrate lead dioxide electrode as well as preparation method and application thereof

A lead dioxide, three-dimensional porous technology, used in chemical instruments and methods, water/sewage treatment equipment, water pollutants, etc., can solve the problems of long method time and low degradation efficiency, and achieve short degradation time and high degradation rate. , the effect of convenient operation

Inactive Publication Date: 2016-07-20
SHANGHAI INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In view of the above technical problems in the prior art, the present invention provides a three-dimensional porous titanium matrix lead dioxide electrode and its preparation method and application to solve the long time and low degradation efficiency of the method for treating ketone musk in wastewater in the prior art technical issues

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  • Three-dimensional porous titanium substrate lead dioxide electrode as well as preparation method and application thereof
  • Three-dimensional porous titanium substrate lead dioxide electrode as well as preparation method and application thereof
  • Three-dimensional porous titanium substrate lead dioxide electrode as well as preparation method and application thereof

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Embodiment 1

[0028] A method for degrading waste water containing ketone musk by using a lead dioxide electrode of a flat titanium matrix, the specific implementation method is as follows:

[0029] (1) First, use mechanical polishing to remove oxides and impurities on the surface of the electrode substrate, then sand the corners with sandpaper to make them smooth, and finally rinse them with deionized water; secondly, immerse the entire electrode in sodium hydroxide lotion to keep Each pole piece is in a separated state, heated to 55°C~85°C, kept at a constant temperature for 35 minutes to 55 minutes, stopped heating, cooled, rinsed with deionized water; then immersed the entire electrode in hydrochloric acid washing solution, at 95°C Treat at 100°C for 35 minutes to 55 minutes, rinse surface impurities with deionized water, and finally ultrasonically clean in ultrapure water for 25 minutes to 45 minutes, then store in deionized water or isopropanol. After pretreatment, the flat titanium su...

Embodiment 2

[0047] A method for degrading waste water containing ketone musk by using a three-dimensional porous titanium matrix lead dioxide electrode, the specific implementation method is as follows:

[0048] (1) First, use mechanical polishing to remove oxides and impurities on the surface of the electrode substrate, then sand the corners with sandpaper to make them smooth, and finally rinse them with deionized water; secondly, immerse the entire electrode in sodium hydroxide lotion to keep Each pole piece is in a separated state, heated to 55°C~85°C, kept at a constant temperature for 35 minutes to 55 minutes, stopped heating, cooled, rinsed with deionized water; then immersed the entire electrode in hydrochloric acid washing solution, at 95°C Treat at 100°C for 25 minutes to 45 minutes, rinse the surface impurities with deionized water, and finally ultrasonically clean in ultrapure water for 25 minutes to 45 minutes, then store in deionized water or isopropanol, the pretreated porous...

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Abstract

The invention discloses a three-dimensional porous titanium substrate lead dioxide electrode which comprises a porous titanium substrate, wherein interlayers are arranged on two side surfaces of the porous titanium substrate in a thermal deposition manner; the interlayers consists of a tin-antimony oxide; a lead dioxide surface active layer is arranged on the interlayer on one side surface of the porous titanium substrate in an electric deposition layer. The invention further provides a preparation method of the three-dimensional porous titanium substrate lead dioxide electrode, and further provides application of the three-dimensional porous titanium substrate lead dioxide electrode in musk ketone in degraded wastewater. In the musk ketone in the degraded wastewater, the three-dimensional porous titanium substrate lead dioxide electrode is taken as an anode, copper foil as a cathode and a sodium sulfate solution as an electrolyte, electrocatalytic oxidation is implemented for 1-2 hours, and then degradation treatment on the musk ketone in the wastewater can be completed. When the musk ketone is degraded by using the three-dimensional porous titanium substrate lead dioxide electrode under an electrifying condition, the degradation time is short, the degradation rate is high, and the operation is convenient.

Description

technical field [0001] The invention belongs to the field of chemical industry and relates to a water treatment method, in particular to a three-dimensional porous titanium matrix lead dioxide electrode and its preparation method and application. Background technique [0002] With the improvement of people's living standards, the demand for pharmaceuticals and personal care products has increased, including various antibiotics, contraceptives, perfumes, cosmetics, detergents and cleaning agents, etc. Due to the extensive use of these compounds, the surrounding environment has been polluted to a certain extent, especially in soil, water, and atmosphere. Among them, the above-mentioned organic substances that have not been metabolized or completely degraded can be detected in the effluent of sewage treatment plants and human tissue cells. Although the concentration levels of these substances in the environment are mostly between nanograms / liter and micrograms / liter, studies h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461C02F1/467
CPCC02F1/46109C02F1/4672C02F2001/46142C02F2101/34C02F2201/46105
Inventor 沈佳赵伟陈东辉邢俊涛张志丽赵修显
Owner SHANGHAI INST OF TECH
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