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Preparation process of nanometer hollow IIB sulfide ball

A technology of nanomaterials and sulfides, applied in nanostructure manufacturing, chemical instruments and methods, zinc sulfide, etc., can solve the problems of difficult product washing, troublesome preparation process, complicated operation, etc., and achieve easy-to-obtain raw materials, low production costs, The effect of simple equipment

Inactive Publication Date: 2008-06-18
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The template method has many shortcomings such as complicated operation, difficult final washing of the product, and troublesome preparation process.

Method used

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  • Preparation process of nanometer hollow IIB sulfide ball
  • Preparation process of nanometer hollow IIB sulfide ball
  • Preparation process of nanometer hollow IIB sulfide ball

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Take the fresh egg inner membrane, wash it with distilled water, dry it, place it in the mixed solution of chloroform / o-phenanthroline and soak it for 30 hours, and make the supporting liquid film; wherein every 40 milliliters of o-phenanthroline is added with 0.1 gram of chloroform;

[0027] (2) Prepare ZnCl with a molar concentration of 0.20mol / L respectively 2 solution and Na 2 S solution, in which Na 2 Add 1% (volume percentage) citric acid to the S solution. Then solution A and solution B are respectively placed on the left and right sides of the supporting liquid film obtained in step (1), i.e. the egg film, left to stand for reaction for 2 days, take out the solution containing precipitation on one side, and carry out centrifugation to obtain The precipitated product was successively washed three times with distilled water, acetone and absolute ethanol to obtain the desired product ZnS.

[0028] The resulting product was stored in absolute ethanol, and th...

Embodiment 2

[0030] Prepare molar solution of 0.20mol / L CdSO 4 and Na 2 S solution, in which Na 2 Add 1% (volume percentage) citric acid to the S solution. Other conditions and steps are exactly the same as in Example 1. The resulting product CdS was stored in absolute ethanol, and the structure and morphology of the product were characterized by XRD and TEM, respectively. figure 2 It can be seen that the obtained product is a hollow sphere with a diameter of 30-50 nanometers, and the crystal system of the product is the same as that of Example 1. The product has high purity. Compared with Example 1, the blue shift of the fluorescence peak is larger.

Embodiment 3

[0032] Prepare HgCl with a molar concentration of 0.15mol / L respectively 2 solution and Na 2 S solution, in which Na 2 Add 1% (volume percentage) citric acid to the S solution. Other conditions and steps are exactly the same as in Example 1, and the obtained product HgS is stored in absolute ethanol. The structure and morphology of the product were characterized by XRD and TEM, respectively. image 3 It can be seen that the obtained product is a hollow sphere with a diameter of about 150 nanometers, and the crystal system of the product is the same as in Example 1. The product has high purity. Compared with Example 1, the blue shift of the fluorescence peak is larger.

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Abstract

The present invention belongs to the field of inorganic nanometer material technology, and is especially preparation process of nanometer hollow IIB sulfide ball. The preparation process includes the following steps: taking fresh egg membrane, washing, air drying, soaking in mixed chloroform / phenanthroline solution to obtain supporting liquid film; compounding solution A and solution B of concentration 0.10-0.40 mol / L in the same molar concentration ratio separately; setting solution A and solution B separately on two sides of the supporting liquid film for still reaction for 36-60 hr; taking the solution with precipitate, centrifugally separating, and washing to obtain the required product. The present invention provides one way for controlled synthesis of nanometer material.

Description

technical field [0001] The invention belongs to the technical field of inorganic nanomaterials, and in particular relates to a preparation method of IIB sulfide nanomaterials. Background technique [0002] Hollow nanospheres have attracted extensive research interest due to their unique structural, optical, and surface properties, and materials with this structure can be used in different aspects such as drug delivery, chemical storage, optoelectronics, and catalysis. As a family of important semiconductor materials, IIB sulfides have attracted much attention due to their potential application value. [0003] However, it is not easy to control the sulfide morphology. So far, the preparation method used for IIB sulfide nanomaterials is usually template method. The template method has many disadvantages such as complex operation, difficult final washing of the product, and troublesome preparation process. Therefore, it is of great significance to develop a method for prepar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G9/08C01G11/02C01G13/00B82B3/00
Inventor 吴庆生段树敏贾润萍孙冬梅丁亚平
Owner TONGJI UNIV
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