Manufacturing method of electrode for electro-catalytic degradation of pyridine as well as product and application of electrode

A technology of electrocatalytic degradation and preparation method, applied in the field of catalytic environmental protection, can solve the problems of short service life, easy peeling off of electrode coating, etc., to improve electrode stability, improve charge transfer ability, high electrochemical degradation pyridine activity and stability sexual effect

Pending Publication Date: 2022-03-01
SHANGHAI NAT ENG RES CENT FORNANOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Ti / SnO2-Sb electrode has been widely studied in the field of electrochemical catalysis due to its high oxygen evolution potential and electrocatalytic activity, but the electrode has problems such as easy peeling off of the coating and short service life, which limits its practical application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] An electrode for electrochemically degrading pyridine, the electrode is a nickel-modified antimony-doped tin dioxide / titanium sheet electrode, made according to the following steps:

[0025] (1) Pretreatment of the titanium sheet: take a titanium sheet with a thickness of 0.1 mm and a size of 2×3 cm, soak it in 40% sodium hydroxide solution, and keep it at 80°C for 1 hour; then soak it in 6M HCl, at 90 ℃ for 2 hours; take it out and wash it several times with deionized water, soak it in absolute ethanol, and get the pretreated titanium sheet for later use;

[0026] (2) Prepare the precursor solution containing antimony Sb and tin Sn: weigh SnCl 4 ˙5H 2 O 1.75g ​​is dissolved in 5ml n-butanol solution as tin-containing precursor solution; Weigh SbCl 3 1. Dissolve 15 g in 5ml of n-butanol solution as the antimony-containing precursor solution. According to the doping ratio of antimony, take 900 μl of the tin-containing precursor solution and 100 μl of the antimony-cont...

Embodiment 2

[0032] A kind of electrode that is used for electrochemical degradation pyridine, and embodiment 1 step approximation, is made according to the following steps:

[0033] (1) Pretreatment of the titanium sheet: soak the titanium sheet with a thickness of 0.1mm and a size of 2×3 cm in 40% sodium hydroxide solution, and keep it at 80°C for 1 hour; then soak it in 6M HCl, at 90 ℃ for 2 hours; take it out and wash it several times with deionized water, soak it in absolute ethanol, and get the pretreated titanium sheet for later use;

[0034] (2) Prepare the precursor solution containing antimony Sb and tin Sn: weigh SnCl 4 ˙5H 2 O 1.75g ​​is dissolved in 5ml n-butanol solution as tin-containing precursor solution; Weigh SbCl 3 1. Dissolve 15 g in 5 ml of n-butanol solution as antimony-containing precursor solution; according to the doping ratio of antimony, take 900 μl of tin-containing precursor solution and 100 μl of antimony-containing precursor solution, and mix them uniform...

Embodiment 3

[0040] A kind of electrode that is used for electrochemical degradation pyridine, and embodiment 1 step approximation, is made according to the following steps:

[0041] (1) Pretreatment of the titanium sheet: soak the titanium sheet with a thickness of 0.2mm and a size of 2×3 cm in 40% sodium hydroxide solution, and keep it at 80°C for 1h; then soak it in 6M HCl, at 90 ℃ for 2 hours; take it out and wash it several times with deionized water, soak it in absolute ethanol, and get the pretreated titanium sheet for later use;

[0042] (2) Prepare the precursor solution containing antimony Sb and tin Sn: weigh SnCl 4 ˙5H 2 O 1.75g ​​was dissolved in 5ml n-butanol solution as tin-containing precursor solution, weighed SbCl 3 1.15g was dissolved in 5ml n-butanol solution as the antimony-containing precursor solution; according to the doping ratio of antimony, take 950 μl of the tin-containing precursor solution and 50 μl of the antimony-containing precursor solution and mix them e...

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Abstract

The invention discloses a manufacturing method of a high-stability electrode for electro-catalytic degradation of pyridine as well as a product and application of the high-stability electrode. The manufacturing method comprises the following steps: preparing a precursor solution containing antimony Sb and tin Sn; the preparation method comprises the following steps: by taking a titanium sheet as a substrate, preparing an antimony-doped tin dioxide Sb-SnO2 electrode material on the surface of the titanium sheet by utilizing a thermal decomposition method to obtain a Ti / Sb-SnO2 electrode; a constant current method is adopted, Ti / Sb-SnO2 is used as a working electrode, a Pt sheet is used as a counter electrode, a nickel nitrate Ni (NO3) 2 solution is used as an electrolyte solution, electrochemical deposition is carried out, and the nickel modified Ti / Sb-SnO2 electrode is obtained. The electrode obtained by the method takes the titanium sheet as the substrate and the Sb-SnO2, NiO or Ni (OH) 2 composite material as the electrode material, and shows relatively high pyridine electrochemical degradation activity and stability.

Description

technical field [0001] The invention belongs to the technical field of catalysis and environmental protection, and in particular relates to a method for making an electrode for electrocatalytically degrading pyridine and its product and application. Background technique [0002] The high concentration of organic pollutants and harmful pollutants discharged in industrial production have caused great harm to human health and the environment. Especially nitrogen-containing heterocyclic compounds are difficult to degrade and have inhibitory or toxic effects on biochemical reactions. As a typical nitrogen-containing heterocyclic compound, pyridine will cause damage to human health and the ecological environment due to its high toxicity and teratogenicity, and due to the recalcitrance of pyridine, it is difficult to treat such wastewater by conventional methods. Therefore, it is imminent to develop fast and efficient pyridine degradation methods. Electrochemical oxidation has th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461C02F101/38
CPCC02F1/46109C02F2001/46142C02F2101/38
Inventor 崔大祥马玉丽赵昆峰童琴陈晓彤
Owner SHANGHAI NAT ENG RES CENT FORNANOTECH
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