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Bismuthyl carbonate micro flowery material with graded structure and preparation method thereof

A technology of bismuth oxycarbonate and micro-flowers is applied in chemical instruments and methods, bismuth compounds, inorganic chemistry, etc., to achieve the effects of short time consumption, low cost and good performance

Inactive Publication Date: 2010-09-01
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims at the complication of the methods for preparing micro / nano materials with hierarchical structure generally, and provides a bismuth oxycarbonate microflower material with hierarchical structure. The bismuth oxycarbonate microflower has a large specific surface area, hierarchical structure

Method used

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  • Bismuthyl carbonate micro flowery material with graded structure and preparation method thereof
  • Bismuthyl carbonate micro flowery material with graded structure and preparation method thereof
  • Bismuthyl carbonate micro flowery material with graded structure and preparation method thereof

Examples

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Effect test

Embodiment 1

[0021] Preparation of bismuth oxycarbonate microflower material with hierarchical structure:

[0022] (1) Dissolve 3.88g of bismuth nitrate in 1M dilute nitric acid (20mL), and then add it dropwise to excess sodium carbonate solution. The molar ratio of bismuth nitrate to sodium carbonate is 1:3, resulting in a large amount of white precipitate. After magnetic stirring for 30 minutes, it was kept at 60° C. for 12 hours.

[0023] (2) Wash and filter with deionized water and ethanol respectively, and then dry at 60°C for 6 hours to obtain Bi 2 o 2 CO 3 Material.

Embodiment 2

[0025] Preparation of bismuth oxycarbonate microflower material with hierarchical structure:

[0026] (1) Dissolve 3.88g of bismuth nitrate in 1M dilute nitric acid (20mL) first, and then add it dropwise to excess sodium carbonate solution. The molar ratio of bismuth nitrate to sodium carbonate is 1:6, resulting in a large amount of white precipitate. After magnetic stirring for 30 minutes, it was kept at 60° C. for 12 hours.

[0027] (2) Wash and filter with deionized water and ethanol respectively, and then dry at 60°C for 6 hours to obtain Bi 2 o 2 CO 3 Material.

Embodiment 3

[0029] Preparation of bismuth oxycarbonate microflower material with hierarchical structure:

[0030] (1) Dissolve 3.88g of bismuth nitrate in 1M dilute nitric acid (20mL), and then add it dropwise to excess sodium carbonate solution. The molar ratio of bismuth nitrate to sodium carbonate is 1:9, resulting in a large amount of white precipitate. After magnetic stirring for 30 minutes, it was kept at 60° C. for 12 hours.

[0031] (2) Wash and filter with deionized water and ethanol respectively, and then dry at 60°C for 6 hours to obtain Bi 2 o 2 CO 3 Material.

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Abstract

The invention relates to a bismuthyl carbonate micro flowery material with a graded structure, which is structurally characterized in that two-dimensional nano flakes are staggered to form a flower shape, and the average diameter of the flakes is 3 to 4 microns. The material is prepared by fist dissolving bismuth nitrate into dilute nitric acid and then gradually dripping the dilute nitric acid into excessive sodium carbonate solution and reacting the solution. A preparation method can be implemented at the low temperature and the normal pressure, and has the advantages of short time consumption, low cost, simple equipment, easy operation and large-scale production. Because of a large specific surface area, the prepared bismuthyl carbonate micro flowery material with the graded structure has important practical application in the aspects of pharmacy and sterilization; and meanwhile, the material with the large specific surface area has good performance in the aspect of degrading organic pollutants by photocatalysis.

Description

technical field [0001] The invention relates to a bismuth oxycarbonate material, in particular to a bismuth oxycarbonate microflower material with a hierarchical structure and a preparation method thereof, belonging to the technical field of preparation of functional materials. Background technique [0002] It is well known that the physical / chemical properties of inorganic materials strongly depend on their microstructure, including particle size, morphology, surface area to volume ratio, etc., due to the interrelationship of structure and properties. Therefore, it is very necessary to synthesize a microstructure that meets the requirements. These microstructured materials have important application prospects in biomedicine, microelectronics, catalysis, and gas sensing. The three-dimensional hierarchical structure combines the characteristics of nanoparticles and their aggregates. Now, more and more research has been transferred to the microstructure of low-dimensional na...

Claims

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Application Information

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IPC IPC(8): C01G29/00
Inventor 秦晓燕程合锋黄柏标
Owner SHANDONG UNIV
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