Preparation method for titanium dioxide nanotube loaded with macroporous antimony tin oxide

An antimony tin oxide and titanium dioxide technology is used in the preparation of metal oxide electrode materials and in the field of phenol wastewater treatment. , the effect of high specific surface area

Active Publication Date: 2014-12-03
YANGZHOU UNIV
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Problems solved by technology

[0004] At present, there have been researches on the electrocatalytic performance of metal oxide films with microporous and mesoporous structures. The high specific area of ​​micro-mesoporous materials can increase the contact between oxide films and solution ions, thereby enhancing the electrocatalytic performance of electrodes. Electrocatalytic performance, but the limitation of the pore size of microporous (0-2nm) and mesoporous (2-50nm) materials cannot make the polymer particles larger than the pore size in organic wastewater fully contact with the membrane layer

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  • Preparation method for titanium dioxide nanotube loaded with macroporous antimony tin oxide
  • Preparation method for titanium dioxide nanotube loaded with macroporous antimony tin oxide
  • Preparation method for titanium dioxide nanotube loaded with macroporous antimony tin oxide

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Embodiment Construction

[0035] 1. Preparation process of titanium dioxide nanotubes with macroporous antimony tin oxide material layer:

[0036] 1. Preparation of polymer precursor solution

[0037] At 60°C, add citric acid to ethylene glycol, stir and dissolve, keep the temperature for 30 minutes, then raise the temperature to 90°C, add tin chloride pentahydrate and antimony trichloride (SnC1 4 ·5H 2 O and SbCl 3 The molar ratio of the feed material is 9:l), after fully stirring and dissolving, and keeping the temperature under stirring condition for 30 minutes, a colorless, transparent and viscous polymer precursor solution is obtained.

[0038] When mixing, the molar ratio of the metal salt, ethylene glycol, and citric acid mixed with tin chloride pentahydrate and antimony trichloride is 1: 14: 3.

[0039] 2. Preparation of titanium dioxide nanotubes

[0040] Polish the titanium sheet successively with 200-mesh and 600-mesh metallographic sandpaper until bright, then boil it in 5% NaOH solutio...

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Abstract

The invention discloses a preparation method for a titanium dioxide nanotube loaded with a macroporous antimony tin oxide, relates to the technical field of preparation of metal oxide electrode materials and also relates to the technical field of treatment of phenolic waste water. The preparation method comprises the following steps: immersing the titanium dioxide nanotube filled with an antimony tin oxide into highly dispersed polystyrene microsphere alcohol liquor, drying and forming a film at a constant temperature to prepare the titanium dioxide nanotube loaded with an opal polystyrene template; and then, coating polymer precursor liquor on the opal polystyrene template of the titanium dioxide nanotube loaded with the opal polystyrene template, sintering at a high temperature to remove polystyrene microspheres to obtain an antimony tin oxide material with an inverse opal macroporous structure, which takes the titanium dioxide nanotube as a base body. According to the preparation method, a macroporous antimony tin oxide film material which is compact, uniform and ordered is prepared on the base body of the titanium dioxide nanotube by virtue of a polymer precursor process. The preparation method is convenient for industrial production and relatively low in cost.

Description

technical field [0001] The invention relates to the technical field of preparation of metal oxide electrode materials, and also relates to the technical field of phenol wastewater treatment. Background technique [0002] In the study of electrocatalytic oxidation treatment of organic wastewater, antimony-tin metal oxide coated electrodes have the characteristics of high oxygen evolution overpotential, good catalytic activity, cheap and easy to obtain, and have strong halogen forming ability, so they are difficult to be treated in oxidation treatment. It has high current efficiency when degrading organic matter, and can effectively prevent the formation of toxic halogenated compounds during the treatment process. [0003] The most widely used composite metal oxide electrode is to deposit metal oxides on metal substrates (such as titanium, iron, zirconium), and titanium has good electrical conductivity, mechanical strength, easy processing and easy industrialization. The best...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461C02F101/34
Inventor 王赪胤乔江王金权周成武代囟杜蒙刘琳张明
Owner YANGZHOU UNIV
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