Apparatus and method for preparing nano-hydroxyapatite powder with controllable morphology

By combining electrochemical deposition methods with adjustments to deposition equipment and process parameters, the problems of low efficiency and high cost in the preparation of nano-hydroxyapatite powder were solved, achieving efficient and low-cost preparation of morphology-controllable nano-powders.

CN115725995BActive Publication Date: 2026-08-18SHAANXI UNIV OF SCI & TECH
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Patent Information

Application Number
CN202211506420.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-11-28
Publication Date
2026-08-18
Estimated Expiration
2042-11-28

AI Technical Summary

Technical Problem

Existing methods for preparing nano-hydroxyapatite powder are inefficient, costly, and difficult to precisely control grain morphology.

Method used

An electrochemical deposition method comprising a deposition apparatus, a heating apparatus, an ultrasonic apparatus, and a fixing apparatus is employed to control the grain morphology of nano-hydroxyapatite powder by adjusting process parameters such as current density, deposition time, and solution concentration.

Benefits of technology

This method enables the low-cost and high-efficiency preparation of nano-hydroxyapatite powder with controllable morphology, reducing the preparation time to one-tenth that of the hydrothermal method and increasing the yield to three times that of the hydrothermal method, while avoiding the generation of side reactions.

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Abstract

The application provides a device and a method for preparing nano-hydroxyapatite powder with controllable morphology, which comprises a deposition device, a heating device, an ultrasonic device and a fixing device; the deposition device comprises a heating box, the bottom of the heating box is provided with an output end of the ultrasonic device and the heating device, and the internal cavity structure is provided with a deposition container; the fixing device comprises a lifting structure, the lifting structure is detachably connected with an anode and a cathode, and the anode and the cathode are electrically connected with an electrochemical workstation respectively; the cathode is arranged in a half-wrapping mode at the bottom and the side of the anode; the application has the advantages of simple structure, convenient operation, low cost, short time, large preparation amount, precise control of the grain morphology of nHA, greatly reduced synthesis cost of HA grain, and avoidance of the defects of long time and reaction by-products in the hydrothermal synthesis method.
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