Method for quickly preparing cubic sodium bismuth titanate at low temperature
A cubic sodium bismuth titanate, rapid technology, applied in the direction of titanate, chemical instruments and methods, titanium compounds, etc., can solve the problems of difficulty in obtaining fine particles, high sintering temperature of samples, poor ceramic compactness, etc., and achieve reaction The effect of shortening the time, uniform particle distribution and reducing agglomeration
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[0032] Example 1
[0033] The present invention is a method for rapidly preparing cubic sodium bismuth titanate powder at low temperature, including the following steps:
[0034] (1) Configure NaOH clarified solution, the concentration of NaOH in the solution is 12mol / L;
[0035] (2) Configure Bi(NO 3 ) 3 ·5H 2 O solution, in solution, Bi(NO 3 ) 3 ·5H 2 The concentration of O is 0.1mol / L, and an appropriate amount of nitric acid is dropped into the solution, and stirring is continued until Bi(NO 3 ) 3 ·5H 2 O is completely dissolved to obtain a clear solution A; the nitric acid used in this preferred example is 1ml;
[0036] (3) Use a pipette to transfer Ti(OC 4 H 9 ) 4 Add dropwise to clear solution A to obtain mixed solution B, in which Ti(OC 4 H 9 ) 4 Compared with Bi(NO 3 ) 3 ·5H 2 The molar ratio of O is 1:1;
[0037] (4) After the mixed solution B in step (3) is magnetically stirred, the clear NaOH solution is added dropwise to the mixed solution B, and then stirred and mixed unif...
Example Embodiment
[0040] Example 2
[0041] The present invention is a method for rapidly preparing cubic sodium bismuth titanate powder at low temperature, including the following steps:
[0042] (1) Configure NaOH clarified solution, the concentration of NaOH in the solution is 14mol / L;
[0043] (2) Configure Bi(NO 3 ) 3 ·5H 2 O solution, in solution, Bi(NO 3 ) 3 ·5H 2 The concentration of O is 0.2mol / L, and an appropriate amount of nitric acid is dropped into the solution, and stirring is continued until Bi(NO 3 ) 3 ·5H 2 O is completely dissolved and a clear solution A is obtained; the nitric acid used in this preferred example is 2ml;
[0044] (3) Use a pipette to transfer Ti(OC 4 H 9 ) 4 Add dropwise to clear solution A to obtain mixed solution B, in which Ti(OC 4 H 9 ) 4 Compared with Bi(NO 3 ) 3 ·5H 2 The molar ratio of O is 1:1.5;
[0045] (4) After the mixed solution B in step (3) is magnetically stirred, the clear NaOH solution is added dropwise to the mixed solution B, and then stirred and mi...
Example Embodiment
[0048] Example 3
[0049] The invention provides a method for quickly preparing cubic Na at low temperature 0.5 Bi 0.5 TiO 3 The powder method includes the following steps: (1) Prepare a clear solution of NaOH, in which the concentration of NaOH is 15mol / L;
[0050] (2) Configure Bi(NO 3 ) 3 ·5H 2 O solution, in solution, Bi(NO 3 ) 3 ·5H 2 The concentration of O is 0.1mol / L, and an appropriate amount of nitric acid is dropped into the solution, and stirring is continued until Bi(NO 3 ) 3 ·5H 2 O is completely dissolved to obtain a clear solution A; the nitric acid used in this preferred example is 1.5ml;
[0051] (3) Use a pipette to transfer Ti(OC 4 H 9 ) 4 Add dropwise to clear solution A to obtain mixed solution B, in which Ti(OC 4 H 9 ) 4 Compared with Bi(NO 3 ) 3 ·5H 2 The molar ratio of O is 3:4;
[0052] (4) After the mixed solution B in step (3) is magnetically stirred, the clear NaOH solution is added dropwise to the mixed solution B, and then stirred and mixed uniformly at ro...
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