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Preparation method of titanium dioxide/copper oxide composited oxide nanometer material

A composite oxide and titanium dioxide technology, applied in chemical instruments and methods, chemical/physical processes, metal/metal oxide/metal hydroxide catalysts, etc. Low activity and other problems, to achieve the effect of easy operation and control, low preparation cost and high catalytic activity

Inactive Publication Date: 2017-02-15
BOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although titania / copper oxide nanocomposites can be prepared by one-step method, they still have the disadvantages of difficult control of hydrolysis rate and crystal shape, low yield, low purity and low photocatalytic activity.

Method used

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  • Preparation method of titanium dioxide/copper oxide composited oxide nanometer material
  • Preparation method of titanium dioxide/copper oxide composited oxide nanometer material
  • Preparation method of titanium dioxide/copper oxide composited oxide nanometer material

Examples

Experimental program
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Effect test

Embodiment 1

[0032] (1) Dissolve copper acetylacetonate in DMF solution, solvothermal reaction, and obtain a DMF solution of nano-cuprous oxide after cooling, wherein the molar concentration of copper acetylacetonate in DMF solution is 0.1 mol / L, and the solvothermal reaction temperature is 200°C, the reaction time is 12 hours. (2) Dissolve tetrabutyl titanate in oxalic acid aqueous solution, then add the above-mentioned DMF solution of nano-cuprous oxide, evaporate the solvent under the condition of heating and stirring, and carry out cross-linking reaction, wherein the molar concentration of oxalic acid is 0.5 mol / L, the molar ratio of tetrabutyl titanate to oxalic acid is 1:5, the molar ratio of tetrabutyl titanate to nano-cuprous oxide is 1:0.05, the heating temperature is 100 °C, and the stirring speed is 60 rpm . After evaporating to dryness, carry out the cross-linking reaction, the reaction temperature is 200 °C, and the reaction time is 2 hours. After the cross-linking reaction i...

Embodiment 2

[0035](1) Dissolve copper acetylacetonate in DMF solution, solvothermal reaction, and obtain a DMF solution of nano-cuprous oxide after cooling, wherein the molar concentration of copper acetylacetonate in DMF solution is 0.05 mol / L, and the solvothermal reaction temperature is 180°C, the reaction time is 24 hours. (2) Dissolve tetrabutyl titanate in oxalic acid aqueous solution, then add the above-mentioned DMF solution of nano-cuprous oxide, evaporate the solvent under the condition of heating and stirring, and carry out cross-linking reaction, wherein the molar concentration of oxalic acid is 0.5 mol / L, the molar ratio of tetrabutyl titanate to oxalic acid is 1:5, the molar ratio of tetrabutyl titanate to nano-cuprous oxide is 1:0.5, the heating temperature is 120 °C, and the stirring speed is 60 rpm . After evaporating to dryness, carry out the cross-linking reaction, the reaction temperature is 200 °C, and the reaction time is 2 hours. After the cross-linking reaction is...

Embodiment 3

[0038] (1) Dissolve copper acetylacetonate in DMF solution, solvothermal reaction, and obtain a DMF solution of nano-cuprous oxide after cooling, wherein the molar concentration of copper acetylacetonate in DMF solution is 0.05 mol / L, and the solvothermal reaction temperature is 180°C, the reaction time is 24 hours. (2) Dissolve tetrabutyl titanate in oxalic acid aqueous solution, then add the above-mentioned DMF solution of nano-cuprous oxide, evaporate the solvent under the condition of heating and stirring, and carry out cross-linking reaction, wherein the molar concentration of oxalic acid is 0.5 mol / L, the molar ratio of tetrabutyl titanate to oxalic acid is 1:5, the molar ratio of tetrabutyl titanate to nano-cuprous oxide is 1:0.2, the heating temperature is 120 °C, and the stirring speed is 60 rpm . After evaporating to dryness, carry out the cross-linking reaction, the reaction temperature is 200 °C, and the reaction time is 2 hours. After the cross-linking reaction i...

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Abstract

The invention belongs to the technical field of functional material preparation and relates to a preparation method of a titanium dioxide / copper oxide composited oxide nanometer material. The preparation method includes: dissolving copper acetylacetonate in a DMF (dimethyl formamide) solution for solvothermal reaction to obtain the DMF solution of nanocrystalline cuprous oxide after cooling; dissolving tetrabutyl titanate in an oxalic acid aqueous solution, adding DMF solution of nanocrystalline cuprous oxide, drying out solvent under conditions of heating and stirring, and performing cross-linking reaction to obtain the dioxide / copper oxide composited oxide nanometer material after heat treatment on a muffle furnace. The preparation method is simple and easy to implement, the nanometer material is high in purity, even in dispersion, low in impurity content, low in product preparation cost and good in performance; titanium dioxide / copper oxide composited oxide nanometer material serving as the photocatalyst material has high catalytic activity, and wide application prospect is achieved in the fields of degrading dye wastewater and indoor harmful gas, photo-catalytic disinfection and the like.

Description

technical field [0001] The invention belongs to the technical field of preparation of functional materials, and in particular relates to a preparation method of a titanium dioxide / copper oxide composite oxide nanometer material. Background technique [0002] Titanium dioxide is non-toxic, stable in chemical properties, low in cost, and has high practical value, especially nano-titanium dioxide has a lower melting point than ordinary titanium dioxide, large specific surface area and surface tension, strong magnetism and ability to absorb ultraviolet rays, chemical activity and optical properties. And high photocatalytic activity, it is the main material in the field of photocatalytic research. In order to improve the photocatalytic performance of titanium dioxide, it is one of the most effective methods to combine it with other semiconductors with smaller band gaps. Since titanium dioxide is an n-type semiconductor, it is selected to combine with copper oxide, a p-type semico...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/72C02F1/30
CPCC02F1/30B01J23/72C02F2305/10B01J35/39
Inventor 许家胜邢振强张杰王琳刘琳
Owner BOHAI UNIV
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