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Preparation method of copper-containing metal composite oxide photocatalytic material

A technology of photocatalytic materials and composite oxides, which is applied in the field of preparation of copper-containing metal composite oxide photocatalytic materials, can solve the problems of slowness and long wet chemical process, and achieve the effect of easy control

Active Publication Date: 2015-03-25
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of wet chemical preparation, in order to obtain metal oxides of ideal size, it is necessary to reduce the reaction kinetic conditions in the preparation process and promote the reaction to proceed at a relatively slow rate. Therefore, the wet chemical process is longer

Method used

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  • Preparation method of copper-containing metal composite oxide photocatalytic material
  • Preparation method of copper-containing metal composite oxide photocatalytic material
  • Preparation method of copper-containing metal composite oxide photocatalytic material

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preparation example Construction

[0032] A kind of preparation method of copper-containing metal composite oxide photocatalytic material of the present invention, comprises the following steps:

[0033] Step 11 Put copper and zirconium into a vacuum electric arc furnace (produced by Shenyang Scientific Instrument Co., Ltd., Chinese Academy of Sciences) and place them in the same smelting station, close the closed gates of the electric arc furnace, and start vacuuming the sample chamber. When the vacuum degree reaches 5 ×10 -3 Pa, turn off the pumping device, keep it for 10 minutes, then turn on the pumping device again, when the vacuum degree reaches 9×10 -4 Pa, close the exhaust device, and then fill the vacuum electric arc furnace with argon gas with a purity of 99.9% until the vacuum degree in the vacuum electric arc furnace reaches 0.05Mpa, and the copper content in the copper and zirconium is 30at.%~70at.%. , the balance is zirconium,

[0034] Step 12: Start smelting, keep for 60-90s after copper and zi...

Embodiment 1

[0047] (1) The preparation composition is 3 grams of a ternary amorphous alloy tape with a copper content of 61 at.%, a zirconium content of 34 at.%, and a titanium content of 5 at.%. The tape thickness is 20-30 μm.

[0048] (2) The alloy strip is put into a ceramic cup, and the graphite electrode on the upper end of the ceramic cup is connected to one end of the alloy strip, and the alloy strip is vertically downward without cross-linking in the middle.

[0049] (3) Pour argon / nitrogen (volume ratio: argon / nitrogen=80 / 20vol.%) mixed gas into the ceramic cup.

[0050] (4) After connecting to the power supply (AC power supply 35V, 50Hz), push the igniting graphite electrode upwards, contact with the alloy strip, ignite the alloy strip by electric spark, and the reaction can proceed.

[0051] (5) Take out the product and grind for 5 minutes to obtain the copper-zirconium-titanium metal oxide composite material.

[0052] refer to figure 1 , the X-ray diffraction pattern of emb...

Embodiment 2

[0059] (1) The preparation composition is 3 grams of a ternary amorphous alloy tape with a copper content of 61 at.% and a zirconium content of 39 at.%.

[0060] (2) The alloy strip is put into a ceramic cup, and the graphite electrode on the upper end of the ceramic cup is connected to one end of the alloy strip, and the alloy strip is vertically downward without cross-linking in the middle.

[0061] (3) Pour argon / nitrogen (volume ratio: argon / nitrogen=80 / 20vol.%) mixed gas into the ceramic cup.

[0062] (4) After connecting to the power supply (AC power supply 35V, 50Hz), push the igniting graphite electrode upwards, contact with the alloy strip, ignite the alloy strip through electric spark, and the reaction can proceed.

[0063] (5) Take out the product and grind for 5 minutes to obtain the copper-zirconium metal oxide composite material.

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Abstract

The invention discloses a preparation method of a copper-containing metal composite oxide photocatalytic material. The preparation method comprises the following steps: putting copper and zirconium into a vacuum electric arc furnace, performing vacuum pumping, then charging argon, starting smelting, keeping for 60-90 seconds after copper and zirconium are smelted, cooling to obtain an alloy molten ingot, turning over, repeating for 4 to 6 times, putting the alloy molten ingot into rapid melt quenching and melt spinning equipment, performing vacuum pumping, then charging argon, performing smelting by adopting a magnetic induction heating mode to form a melt after completely melting, opening an air pressure valve, spraying the melt on the surface of a copper roller which rapidly rotates to obtain a continuous amorphous alloy ribbon, and putting the amorphous alloy ribbon into a ceramic cup, wherein the ceramic cup comprises a ceramic base, the ceramic base is connected with a ceramic cup cover, the ceramic cup cover is provided with an air inlet hole, an observation view window and a graphite electrode, and the ceramic base is in sliding connection with an ignition graphite electrode; and connecting one end of the amorphous alloy ribbon with the graphite electrode, charging oxygen, then pushing the ignition graphite electrode to the amorphous alloy ribbon, and enabling the ignition graphite electrode to be in contact with the amorphous alloy ribbon to generate electric sparks for igniting an alloy strip material.

Description

technical field [0001] The invention relates to a method for preparing a metal oxide micro / nano composite material with remarkable photocatalytic properties, in particular to a method for preparing a copper-containing metal composite oxide photocatalyst material. Background technique [0002] Metal oxides are important catalytic materials. Copper oxide (CuO, Cu 2 O) is a p-type semiconductor, which is widely used in gas sensing and detection and organic synthesis industry. Titanium dioxide (TiO 2 ) and zirconia (ZrO 2 ) is an n-type semiconductor. Titanium dioxide has been widely used as a photocatalytic material in sewage treatment. ZrO 2 As a catalyst, it is widely used in atmospheric control and organic synthesis. On the other hand, doping other elements in the existing metal oxide materials is an important means to improve the catalytic, gas-sensing and lithium battery performance of the original materials. Doping other metal or non-metal elements and their compo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G3/02C22C45/10C22C45/00
Inventor 潘冶吴继礼陆韬王先飞李星洲景力军陶诗文
Owner SOUTHEAST UNIV
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