Preparation method for hydroxyapatite nanowire
A hydroxyapatite and nanowire technology, applied in chemical instruments and methods, phosphorus compounds, inorganic chemistry, etc., can solve the problems of difficult to achieve large-scale production, high energy consumption, cumbersome processes, etc. High, simple process effect
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[0033] The invention provides a method for preparing hydroxyapatite nanowires, comprising the following steps:
[0034] Prepare water-soluble calcium salt solution and water-soluble phosphate solution;
[0035] Measure the water-soluble calcium salt solution and the water-soluble phosphate solution, mix quickly, add graphene oxide nanosheets under the condition of stirring, adjust the pH, obtain the mixed solution, stir, the water-soluble calcium salt in the water-soluble calcium salt solution and The molar ratio of the water-soluble phosphate in the water-soluble phosphate solution is (0.1-2.5):1, such as 0.1:1, 0.2:1, 0.3:1, 0.4:1, 0.5:1, 0.6:1, 0.7:1, 0.8:1, 0.9:1, 1:1, 1.2:1, 1.4:1, 1.5:1, 1.8:1, 2:1, 2.2:1, 2.5:1, etc.;
[0036] Carrying out microwave synthesis reaction to described mixed solution;
[0037] After centrifugation, a precipitate is obtained, which is hydroxyapatite nanowires.
[0038] In some specific embodiments, the time for the microwave synthesis reac...
Embodiment 1
[0056] Prepare 30mmol / L disodium hydrogen phosphate solution, 60mmol / L calcium chloride solution and 0.2 mmol / L sodium hydroxide solution for subsequent use;
[0057] Accurately measure 50mL of disodium hydrogen phosphate solution and 20mL of calcium chloride solution with a graduated cylinder, and pour them into two 100mL beakers respectively;
[0058] The solutions in the two beakers were quickly mixed, and under stirring conditions, 20 g of graphene oxide nanosheets were added, and the pH was quickly adjusted to 10 with sodium hydroxide solution to obtain a mixed solution;
[0059] After stirring for 1 hour, the mixed solution was put into a microwave synthesis kettle, and the microwave power was adjusted to 400W, and the microwave reaction was 30min;
[0060] After the reaction is finished, the reacted solution is centrifuged at a speed of 4000 r / min, the graphene oxide nanosheets remain in the solution, and the obtained precipitates are hydroxyapatite nanowires.
[0061]...
Embodiment 2
[0064] Prepare 30mmol / L sodium dihydrogen phosphate solution, 60mmol / L calcium chloride solution and 0.2 mmol / L hydrochloric acid solution for subsequent use;
[0065] Accurately measure 100mL of disodium hydrogen phosphate solution and 50mL of calcium chloride solution with a graduated cylinder, and pour them into two 100mL beakers respectively;
[0066] The solutions in the two beakers were quickly mixed, and under stirring conditions, 10 g of graphene oxide nanosheets were added, and the pH was quickly adjusted to 11 with hydrochloric acid solution to obtain a mixed solution;
[0067] After stirring for 1 hour, the mixed solution was put into a microwave synthesis kettle, and the microwave power was adjusted to be 600W, and the microwave reaction was 30min;
[0068] After the reaction, the reacted solution was centrifuged at a speed of 1000r / min, the graphene oxide nanosheets were left in the solution, and the obtained precipitate was hydroxyapatite nanowires.
[0069] The...
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