Two-step oil-solute hydroxyapatite nanorod preparing method
A hydroxyapatite, oil-soluble technology, applied in nanotechnology, nanotechnology, chemical instruments and methods, etc., can solve the problems of nanocrystal crystallinity, morphology, size deficiency, material application cannot be realized, low solubility of sodium phosphate, etc. problems, to achieve the effects of good morphology controllability, low cost, and stable product quality
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[0034] Example 1
[0035] 1) Dissolve 0.02mol calcium nitrate in 20g water to obtain solution A;
[0036] 2) Dissolve 0.032mol ethylenediamine in a mixture of 40g ethanol and 0.04mol oleic acid to obtain solution B;
[0037] 3) Add the solution B obtained in step 2) into a three-necked flask, and then slowly drop the solution A obtained in step 1) into the solution B, and stir for 10 minutes to obtain the solution C;
[0038] The molar ratio of oleic acid to calcium is 2:1;
[0039] The molar ratio of oleic acid to ethylenediamine is 5:4.
[0040] 4) Dissolve 0.012 mol of trisodium phosphate in 30 g of water to obtain solution D;
[0041] 5) Under stirring conditions, slowly drop the solution D obtained in step 4) into the solution C obtained in step 3), and continue to stir for 20 minutes after the dropwise addition to obtain a suspension;
[0042] 6) Centrifuge or filter the suspension obtained in step 5) to obtain a precipitate, redisperse the precipitate in 100 g of deionized water, an...
Example Embodiment
[0047] Example 2, same as Example 1, except that:
[0048] 1) Dissolve 0.02mol calcium nitrate in 20g water to obtain solution A;
[0049] 2) Dissolve 0.032mol ethylenediamine in a mixture of 40g ethanol and 0.02mol oleic acid to obtain solution B;
[0050] 3) Add the solution B obtained in step 2) into a three-necked flask, and then slowly drop the solution A obtained in step 1) into the solution B, and stir for 10 minutes to obtain the solution C;
[0051] The molar ratio of oleic acid to calcium is 1:1;
[0052] The molar ratio of oleic acid to ethylenediamine is 5:4.
[0053] 4) Dissolve 0.012 mol of trisodium phosphate in 30 g of water to obtain solution D;
[0054] 6) Centrifuge or filter the suspension obtained in step 5) to obtain a precipitate, redisperse the precipitate in 100 g of deionized water, and adjust the pH to 10.5 with 1 mol / L sodium hydroxide to obtain a reaction solution one;
[0055] 7) Place the reaction liquid 1 obtained in step 6) in a high temperature and high pr...
Example Embodiment
[0056] Example 3 is the same as Example 1, except that:
[0057] 1) Dissolve 0.02mol calcium nitrate in 20g water to obtain solution A;
[0058] 2) Dissolve 0.032mol sodium hydroxide in a mixture of 40g ethanol and 0.04mol oleic acid to obtain solution B;
[0059] 3) Add the solution B obtained in step 2) into a three-necked flask, and then slowly drop the solution A obtained in step 1) into the solution B, and stir for 10 minutes to obtain the solution C;
[0060] The molar ratio of oleic acid to calcium is 1:1;
[0061] The molar ratio of oleic acid to ethylenediamine is 5:4.
[0062] 4) Dissolve 0.012mol sodium dihydrogen phosphate in 30g water to obtain solution D;
[0063] 6) Centrifuge or filter the suspension obtained in step 5) to obtain a precipitate, redisperse the precipitate in 100 g of deionized water, and adjust the pH to 7 with 1 mol / L sodium hydroxide to obtain reaction liquid one;
[0064] 7) Place the reaction liquid 1 obtained in step 6) in a high-temperature and high-pr...
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