Preparation method and product of Bi4Ti3O12 micron sheets

[0032] 1) Weigh 5.1 mmol of tetrabutyl titanate, add it dropwise into deionized water, and control the concentration of tetrabutyl titanate to 0.4 mol / L.

[0033] 2) Weigh 6.8 mmol of bismuth nitrate pentahydrate, add it into the suspension prepared in step 1), and stir thoroughly.

[0034] 3) Weigh 0.04 mol of potassium hydroxide, add to the suspension solution prepared in step 2), and stir for at least 30 minutes.

[0035] 4) Weigh 1.13 mmol polyvinyl alcohol (PVA), dissolve it in deionized water, and control the concentration of PVA to be 0.113 mol / L.

[0036] 5) In the stirring state, add the PVA solution prepared in step 4) dropwise to the suspension prepared in step 3), and disperse through sufficient stirring and ultrasonic vibration, and adjust its volume to account for the reaction with deionized water. 4 / 5 of the volume of the inner tank of the kettle, and the precursor solution is obtained at this time.

[0037] 6) Add the precursor solution prepared in step 5)

[0040] 1) Weigh 5.1 mmol of tetrabutyl titanate, add it dropwise into deionized water, and control the concentration of tetrabutyl titanate to 0.6 mol / L.

[0041] 2) Weigh 6.8 mmol of bismuth nitrate pentahydrate, add it into the suspension prepared in step 1), and stir thoroughly.

[0042] 3) Weigh 0.04 mol of potassium hydroxide, add to the suspension solution prepared in step 2), and stir for at least 30 minutes.

[0043] 4) Weigh 1.15 mmol polyvinyl alcohol (PVA), dissolve it in deionized water, and control the concentration of PVA to be 0.115 mol / L.

[0044] 5) In the stirring state, add the PVA solution prepared in step 4) dropwise to the suspension prepared in step 3), and disperse through sufficient stirring and ultrasonic vibration, and adjust its volume to account for the reaction with deionized water. 4 / 5 of the volume of the inner tank of the kettle, and the precursor solution is obtained at this time.

[0045] 6) Add the precursor solution prepared in step 5)

[0048] 1) Weigh 5.1 mmol of tetrabutyl titanate, add it dropwise into deionized water, and control the concentration of tetrabutyl titanate to 0.6 mol / L.

[0049] 2) Weigh 6.8 mmol of bismuth nitrate pentahydrate, add it into the suspension prepared in step 1), and stir thoroughly.

[0050] 3) Weigh 0.04 mol of potassium hydroxide, add to the suspension solution prepared in step 2), and stir for at least 30 minutes.

[0051] 4) Weigh 1.17 mmol polyvinyl alcohol (PVA), dissolve it in deionized water, and control the concentration of PVA to be 0.117 mol / L.

[0052] 5) In the stirring state, add the PVA solution prepared in step 4) dropwise to the suspension prepared in step 3), and disperse through sufficient stirring and ultrasonic vibration, and adjust its volume to account for the reaction with deionized water. 4 / 5 of the volume of the inner tank of the kettle, and the precursor solution is obtained at this time.

[0053] 6) Add the precursor solution prepared in step 5) i