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Preparation method of calcium sulfate nanometer material

A nanomaterial, calcium sulfate technology, applied in the field of preparation of calcium sulfate nanomaterials, can solve the problems of high reaction temperature requirements, difficult large-scale production, complex operation, etc., and achieve the effects of reduced production costs, convenient operation, and enhanced fluorescence

Inactive Publication Date: 2007-02-14
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above reaction schemes have problems such as complicated operation, high requirements on reaction temperature, and high cost to varying degrees, making it difficult to produce on a large scale
So far, there are no more than 10 researches on the preparation of non-layered inorganic salt nanotubes at home and abroad.
However, by changing some influencing factors, the reports of obtaining nanoparticles, nanotubes, nanorods and nanowires in the same system according to human will have not been seen so far.

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  • Preparation method of calcium sulfate nanometer material
  • Preparation method of calcium sulfate nanometer material
  • Preparation method of calcium sulfate nanometer material

Examples

Experimental program
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Effect test

Embodiment 1

[0037] (1) Weigh 0.0025 moles of CaCl respectively 2 and Na 2 SO 4 , and then were dissolved in 25 ml of distilled water to make CaCl with a molar concentration of 0.10 mol / L 2 and Na 2 SO 4 solution;

[0038] (2) Add 1.5 milliliters of any solution prepared in step (1) to the Erlenmeyer flask in sequence, 5 milliliters of C 12 E. 9 1 milliliter of n-pentanol and 40 milliliters of cyclohexane were stirred for 5 minutes to form a transparent and uniform reversed-phase micelle A solution, and another solution in step (1) was prepared into another reversed-phase micelle B in the same way solution;

[0039] (3) Mix the two reversed-phase micellar solutions obtained in step (2), stir for 2 minutes to make them fully mixed, and after standing for 1 minute, the reversed-phase micellar solution is demulsified and separated with acetone, and the acetone is added The amount is 5 milliliters, the product is washed three times with absolute ethanol and distilled water, and vacuum-...

Embodiment 2

[0042] (1) Weigh 0.0025 moles of CaCl respectively 2 and Na 2 SO 4 , and then were dissolved in 25 ml of water to make CaCl with a molar concentration of 0.10 mol / L 2 and Na 2 SO 4 solution;

[0043] (2) A: Add 1.5 milliliters of CaCl prepared in step (1) to the Erlenmeyer flask2 solution, 5 ml C 12 E. 9 , 1 milliliter of n-pentanol and 40 milliliters of cyclohexane, stirred to form a transparent and uniform reversed-phase micellar solution;

[0044] B: Add 1.5 milliliters of Na prepared in step (1) respectively to the Erlenmeyer flask 2 SO 4 solution, 5 ml C 12 E. 9 , 1 milliliter of n-pentanol and 40 milliliters of cyclohexane, stirred to form another transparent and uniform reversed-phase micellar solution;

[0045] (3) Stir two kinds of reversed-phase micellar solutions of A and B gained in step (2), make it mix uniformly, let it stand for reaction for 5 minutes, separate the reversed-phase micellar solution with acetone demulsification, and the acetone addition...

Embodiment 3

[0047] (1) Weigh 0.0025 moles of CaCl respectively 2 and Na 2 SO 4 , and then were dissolved in 25 ml of water to make CaCl with a molar concentration of 0.10 mol / L 2 and Na 2 SO 4 solution;

[0048] (2) A: Add 1.5 milliliters of CaCl prepared in step (1) to the Erlenmeyer flask 2 solution, 5 ml C 12 E. 9 , 1 milliliter of n-pentanol and 40 milliliters of cyclohexane, stirred to form a transparent and uniform reversed-phase micellar solution;

[0049] B: Add 1.5 milliliters of Na prepared in step (1) respectively to the Erlenmeyer flask 2 SO 4 solution, 5 ml C 12 E. 9 , 1 milliliter of n-pentanol and 40 milliliters of cyclohexane, stirred to form another transparent and uniform reversed-phase micellar solution;

[0050] (3) Stir two kinds of reversed-phase micellar solutions of A and B obtained in step (2), make it mix uniformly, leave to stand for reaction for 12 hours, separate the reversed-phase micellar solution with acetone demulsification, the acetone additio...

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Abstract

The present invention belongs to the field of nanometer inorganic material technology, and is especially preparation process of nanometer calcium sulfate material. The preparation process includes the following steps: compounding calcium salt solution and sulfate solution of molar concentration 0.05-0.20 mol / l; setting the calcium salt solution in 1.5 ml in one conical flask and sulfate solution in 1.5 ml in one other conical flask; adding to each of the conical flasks C12E9 in 5 ml, n-amyl alcohol in 1 ml and cyclohexane in 40 ml via stirring to obtain two kinds of homogeneous reverse phase micellar solution separately; mixing these two kinds of reverse phase micellar solution; stilling for certain time; demulsifying separation with acetone, washing and drying to obtain nanometer luminescent calcium sulfate material, which may be nanometer particle, nanometer tube, nanometer rod or nanometer line corresponding to the stilling time of 0.8-1.5 min, 4.5-5.5 min, 8-15 hr and 100-120 hr separately.

Description

technical field [0001] The invention belongs to the technical field of inorganic nanomaterials, and in particular relates to a preparation method of calcium sulfate nanomaterials (nanoparticles or nanotubes or nanorods or nanowires). Background technique [0002] In the past 20 to 30 years, nanomaterials have aroused strong research interests of scientific researchers because of their unique properties. Nanoparticles are usually the basic building blocks, and most highly ordered nanostructures are assembled from nanoparticles. Due to its unique structure, one-dimensional nanomaterials have very broad application prospects. Among them, nanotubes have many excellent physical and chemical properties because of their unique structure. Therefore, it has very broad application prospects in the fields of energy, medicine, electronics, biology, etc., and has become one of the hot spots that the majority of scientific researchers are eager to study. [0003] However, due to the di...

Claims

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Application Information

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IPC IPC(8): C01F11/46B82B3/00
Inventor 吴庆生陈云丁亚平尹蓉徽贾润萍
Owner TONGJI UNIV
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