Hydroxyapatite porous nanorods and preparation method thereof

A technology of hydroxyapatite and nanorods, applied in the direction of nanotechnology, nanotechnology, chemical instruments and methods, etc., can solve the problems of high cost, low crystallinity, harsh conditions, etc., and achieve non-toxic production and environmental protection , the effect of reducing production costs

Inactive Publication Date: 2016-04-13
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To overcome the shortcomings of hydroxyapatite nanorods that require surfactants or polymers as templates, complex processes, harsh conditions, high cost, and low crystallinity; to overcome the existing hydroxyapatite nanorods that do not contain hole defect

Method used

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  • Hydroxyapatite porous nanorods and preparation method thereof
  • Hydroxyapatite porous nanorods and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Dissolve 0.003mol calcium nitrate in a flask filled with 25mL of water, then add 25mL of ethanol to the flask to prepare a calcium nitrate-ethanol-water mixture for use;

[0026] (2) Dissolve 0.0067mol of sodium hydroxide in a beaker filled with 25mL of water, add 0.0018mol of phosphoric acid, and then add 25mL of ethanol to prepare a phosphoric acid-sodium hydroxide-ethanol-water mixture for use;

[0027] (3) under stirring conditions, the mixed solution prepared in the step (2) is added in the flask in the step (1), the temperature is raised, and the reaction is refluxed for 2 hours;

[0028] (4) Then the mixture obtained in the step (3) is moved to the inner sleeve polytetrafluoroethylene container of the reactor, sealed, the reactor is put into an oven, the temperature is raised to 160° C., and the mixed solvent is thermally reacted for 12 hours under autogenous pressure. Hour;

[0029] (5) The stock solution was left to stand at room temperature for 3 days, th...

Embodiment 2

[0032] The reflux reaction time in the step (3) in the embodiment 1 is set as 1 hour, and other steps are with embodiment 1. Obtain product with embodiment 1.

Embodiment 3

[0034] The reflux reaction time in the step (3) in the embodiment 1 is set as 4 hours, and other steps are with embodiment 1. Obtain product with embodiment 1.

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Abstract

The invention discloses a hydroxyapatite porous nanorod and a preparation method thereof. The method comprises the following steps: (1) taking 25 parts of mixed solution of calcium salt-water-alcohol; (2) taking 25 parts of mixed solution of phosphorus source-sodium hydroxide-water; (3) adding the mixed solution prepared in the step (2) to a reactor in the step (1), refluxing and reacting for 1-4 hours; (4) warming the mixture obtained in the step (3) to 115-160 DEG C, carrying out hydrothermal reaction for 12-36 hours under self-generated pressure; and (5) standing stoste at room temperature for 0-12 hours, and then washing, centrifuging, and drying in vacuum, so as to obtain the white powder, namely the hydroxyapatite porous nanorod. The method disclosed by the invention does not need template agents such as a surfactant, a polymer and the like, and the obtained product is a pure hydroxyapatite porous nanorod with good degree of crystallinity. Therefore, the method disclosed by the invention is simple in process, and low in cost.

Description

technical field [0001] The technical solution of the invention relates to calcium phosphate, specifically hydroxyapatite porous nanorods and a preparation method thereof. Background technique [0002] The chemical structure of hydroxyapatite is Ca 10 (PO 4 ) 6 (OH) 2 , is the main inorganic component of human and vertebrate bones and teeth. Because of its good biocompatibility and surface activity, it is widely used as bioceramic materials, chromatography materials, filter materials, adsorption materials and carrier materials. [0003] Nano-mesoporous rod-like structure hydroxyapatite not only has the characteristics of nano-hydroxyapatite, such as high specific surface area and high reactivity, but also has the characteristics of nano-mesoporous structure, such as special optics, electricity, Due to its magnetic properties and good adsorption capacity, hydroxyapatite with nano-mesoporous rod-like structure has a wide range of application values ​​in biomimetic preparat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B25/32B82Y40/00B82Y30/00
Inventor 纪秀杰苏芃赫刘超程博闻黄洁茹
Owner TIANJIN POLYTECHNIC UNIV
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