Method for preparing metallic ion doping nano bismuth oxide

A technology of nano-bismuth oxide and metal ions, applied in chemical instruments and methods, inorganic chemistry, bismuth compounds, etc., can solve the problems of unreported research on photocatalysts, and achieve the effects of high production costs, easy-to-obtain raw materials, and convenient operation

Inactive Publication Date: 2008-09-17
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is a small amount of information about Bi in China 2 o 3 The report of composite oxide se

Method used

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  • Method for preparing metallic ion doping nano bismuth oxide
  • Method for preparing metallic ion doping nano bismuth oxide
  • Method for preparing metallic ion doping nano bismuth oxide

Examples

Experimental program
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Embodiment 1

[0026] Embodiment 1 prepares the method for doping metal ion bismuth oxide

[0027] Accurately weigh 3.65g of bismuth nitrate pentahydrate, measure 50ml of ethylene glycol (ethylene glycol is enough to ensure that the bismuth nitrate is completely dissolved), mix the two in a beaker, and ultrasonically disperse for 30 minutes until the bismuth nitrate is completely dissolved, then add ferric nitrate Solution (C (Fe3+) : C (Bi3+) <20:1). Then above-mentioned mixed solution is transferred in the 250ml round-bottomed flask, is placed in the microwave oven that is connected with reflux device and carries out microwave reaction, microwave power is 360W, microwave radiation 8 minutes (every 2 minutes, interval 1 minute, totally 4 times) . After the reaction, the product was collected, centrifuged, and washed three times with deionized water and absolute ethanol. Dry at 80°C for 6h. Calcined at 500°C for 2h to obtain bismuth oxide product.

[0028] The preparation process of th...

Embodiment 2

[0031] Accurately weigh 3.65g of bismuth nitrate pentahydrate, measure 50ml of ethylene glycol (ethylene glycol is enough to ensure that the bismuth nitrate is completely dissolved), mix the two in a beaker, and ultrasonically disperse for 30 minutes until the bismuth nitrate is completely dissolved, then add chloride Nickel solution (C (Fe3+) : C (Bi3+) <20:1). Then above-mentioned mixed solution is transferred in the 250ml round-bottomed flask, is placed in the microwave oven that is connected with reflux device and carries out microwave reaction, microwave power is 360W, microwave radiation 8 minutes (every 2 minutes, interval 1 minute, totally 4 times) . After the reaction, the product was collected, centrifuged, and washed three times with deionized water and absolute ethanol. Dry at 80°C for 6h. Calcined at 500°C for 2h to obtain bismuth oxide product.

[0032] The preparation process of this method is shown in figure 1 .

[0033] The XRD spectrum pattern of the r...

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Abstract

The invention provides a method for preparing bismuth oxide doped with a metal ion, which is characterized in that the easy-made bismuth compound and an alcohol compound are acted as the reaction raw material, the transitional metal ion Fe 3+ and Ni 2+ are doped, and then the metal ion doped bismuth oxide is prepared by means of an ultrasonic radiation. The preparation method for preparing bismuth oxide doped with the metal ion has the advantages of no environmental pollution, simple process, low production cost, and relatively narrow particle size distribution, strong oxidation capability, high catalysis activity, nontoxicity, good chemical stability of the produced product, which is applicable to the fields such as wastewater treatment, sewage treatment, waste gas disposal, and energy material, and also promoted to be used in the disposal of waste gas exhausted from the domestic rubbish burning industry and steel enterprises.

Description

technical field [0001] The invention relates to a method for preparing doped metal ion nano bismuth oxide (Bi 2 o 3 )Methods. Background technique [0002] Bi 2 o 3 It is an important functional material and mainly exists in three crystal forms: α (monoclinic), β (tetragonal), γ (cubic) and δ (cubic). where β-Bi 2 o 3 and γ-Bi 2 o 3 It is a metastable crystal form. At present, the application mainly focuses on the α and δ crystal forms. δ-Bi 2 o 3 It has very high oxygen ion conductivity and is a very potential electrolyte material. Bi 2 o 3 It is widely used in electronic ceramic powder materials, optoelectronic materials, high temperature superconducting materials, catalysts and other fields. In recent years, the Bi 2 o 3 New applications are also constantly being reported. For example, A. Cabot et al. from the University of Barcelona in Spain found that using Bi 2 o 3 As a solid gas sensing material, it has good selective gas sensitivity to NO. [000...

Claims

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Application Information

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IPC IPC(8): C01G29/00
Inventor 杨华明解君华张东玖
Owner CENT SOUTH UNIV
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