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A kind of titanium-based sn-sb-ce oxide electrode and its preparation method and application

A sn-sb-ce, oxide technology, applied in the field of electrochemical catalytic oxidation anode materials, can solve the problems of short service life, too low oxygen evolution potential, and limit the wide application of electrodes, so as to improve the contact specific surface area, high analysis Oxygen potential, the effect of overcoming corrosion

Active Publication Date: 2021-02-12
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Titanium-based tin-based antimony-doped metal oxide electrodes can effectively degrade organic matter in sewage. However, the short service life and low oxygen evolution potential limit the wide application of such electrodes.
At present, many literatures pay more attention to doping or improving electrode performance by changing different dopants, but there are few reports on how to combine preparation methods to improve electrode performance

Method used

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  • A kind of titanium-based sn-sb-ce oxide electrode and its preparation method and application
  • A kind of titanium-based sn-sb-ce oxide electrode and its preparation method and application
  • A kind of titanium-based sn-sb-ce oxide electrode and its preparation method and application

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Experimental program
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Effect test

Embodiment 1

[0045] (1) The titanium plate was repeatedly polished with sandpaper, and then cleaned and etched with deionized water, alkali, and acid to obtain a pretreated titanium base; 50mmol SnCl 4 ·5H 2 O, 7mmol SbCl 3 , 0.5mmol Ce(NO 3 ) 3 ·6H 2 O, 30mmolC 6 h 12 o 6 ·H 2 O, 0.69mL HNO 3 Dissolve in deionized water to 100mL to form a homogeneous solution as the electroplating solution; immerse the pretreated titanium base (30mm*30mm, one side sealed with insulating tape) into the above electroplating solution, at 4mA / cm 2 Electroplating was carried out for 120 sec under the action of current density, and the electrode was taken out and rinsed with deionized water, dried in an oven at 80°C for 5 minutes, then quickly transferred to a muffle furnace, and calcined at 500°C for 30 minutes to obtain a titanium base after electroplating.

[0046] (2) 5mmol SnCl 4 ·5H 2 O, 0.75mmol SbCl 3 , 0.05mmol Ce(NO 3 ) 3 ·6H 2 O, 12.5mmolC 6 h 12 o 6 ·H 2 O was dissolved in a mixed...

Embodiment 2

[0049] (1) The titanium plate was repeatedly polished with sandpaper, and then cleaned and etched with deionized water, alkali, and acid to obtain a pretreated titanium base; 50mmol SnCl 4 ·5H 2 O, 7mmol SbCl 3 , 0.5mmol Ce(NO 3 ) 3 ·6H 2 O, 30mmolC 6 h 12 o 6 ·H 2 O, 0.69mL HNO 3 Dissolve in deionized water to 100mL to form a homogeneous solution as the electroplating solution; immerse the pretreated titanium base (30mm*30mm, one side sealed with insulating tape) into the above electroplating solution, at 4mA / cm 2 Electroplating was carried out for 120 sec under the action of current density. After the electrode was taken out and rinsed with deionized water, it was dried in an oven at 80°C for 5 minutes, then quickly transferred to a muffle furnace, calcined at 500°C for 30 minutes, and the electroplating and calcining operations were repeated twice to obtain Titanium base after electroplating.

[0050] (2) 5mmol SnCl 4 ·5H 2 O, 0.75mmol SbCl 3 , 0.05mmol Ce(NO ...

Embodiment 3

[0053] (1) The titanium plate was repeatedly polished with sandpaper, and then cleaned and etched with deionized water, alkali, and acid to obtain a pretreated titanium base; 50mmol SnCl 4 ·5H 2 O, 7mmol SbCl 3 , 0.5mmol Ce(NO 3 ) 3 ·6H 2 O, 30mmolC 6 h 12 o 6 ·H 2 O, 0.69mL HNO 3 Dissolve in deionized water to 100mL to form a homogeneous solution as the electroplating solution; immerse the pretreated titanium base (30mm*30mm, one side sealed with insulating tape) into the above electroplating solution, at 4mA / cm 2 Electroplating was carried out for 120 sec under the action of current density. After the electrode was taken out and rinsed with deionized water, it was dried in an oven at 80°C for 5 minutes, then quickly transferred to a muffle furnace, calcined at 500°C for 30 minutes, and the electroplating and calcining operations were repeated 3 times to obtain Titanium base after electroplating.

[0054] (2) 5mmol SnCl 4 ·5H 2 O, 0.75mmol SbCl 3 , 0.05mmol Ce(NO...

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Abstract

The invention relates to a titanium-based Sn-Sb-Ce oxide electrode and its preparation method and application, which has a multi-level structure, and the titanium-based surface layer Sn-Sb-Ce oxide is a spherical nano-ternary multilayer structure. The preparation method includes: immersing the pretreated titanium substrate in an electroplating solution prepared by mixing Sn source, Sb source, Ce source, glucose and nitric acid for electroplating to obtain an electroplated titanium substrate; dissolving the Sn source, Sb source, Ce source, and glucose Perform hydrothermal reaction in a mixed solution of ethanol and deionized water to obtain Sn-Sb-Ce oxide; add ethylene glycol citrate to coat on the electroplated titanium base, and then calcinate to obtain it. The Sn-Sb-Ce oxide in the present invention has a special spherical shape and has both high electrocatalytic activity and selectivity for organic oxidation. The preparation method adopted in the invention is green and environment-friendly, has low cost, greatly reduces the dependence on the noble metal Pt, and has broad application prospects.

Description

technical field [0001] The invention belongs to the field of electrochemical catalytic oxidation anode materials, in particular to a titanium-based Sn-Sb-Ce oxide electrode and its preparation method and application. Background technique [0002] Antibiotics refer to a class of substances (compounds) that are produced by bacteria, fungi or other microorganisms in the course of life and have anti-pathogen or other activities. Malignant tumor cells also have a good inhibitory effect. Since it was discovered in the 1920s, it has made countless contributions to human health. Antibiotics can be extracted from the metabolites of certain microorganisms, plants, and animals, and can also be synthesized or semi-synthesized by chemical methods. According to the chemical structure, they can be divided into aminoglycosides, macrolides, β-lactams, polypeptides, tetracyclines and others. In the past ten years or so, antibiotics have been the largest drug seller, and their production is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/461C02F1/72C02F101/34C02F101/38
CPCC02F1/46109C02F1/4672C02F2001/46133C02F2001/46152C02F2101/34C02F2101/38
Inventor 乔锦丽杨焜魏亚南侯晓帆王敏周玥
Owner DONGHUA UNIV
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