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Method for preparing sodium-potassium bismuth titanate nano-microspheres by micro-emulsion method
The invention discloses a method for preparing sodium-potassium bismuth titanate nano-microspheres by a micro-emulsion method. The method comprises: I, weighing raw materials, dissolving sodium nitrate and potassium nitrate into water to obtain a mixture A, and mixing bismuth nitrate with water to obtain a mixture B; II, mixing cyclohexane with tetrabutyl titanate to obtain a mixture C; III, preparing mixing auxiliaries; IV, mixing the cyclohexane with the mixing auxiliaries to obtain a mixture D, regulating the pH value after dropwise adding the mixture A, and then, dropwise adding the mixture B, thereby obtaining a mixture E; V, mixing the mixture C with the mixture E, forming microemulsion by magnetically stirring, and carrying out ageing treatment on the microemulsion; and VI, centrifugally filtering, getting filter residues, washing and drying the filter residues, thereby obtaining the sodium-potassium bismuth titanate nano-microspheres. According to the method disclosed by the invention, the sodium-potassium bismuth titanate nano-microspheres with single perovskite phase are obtained under a relatively low temperature condition; and the sodium-potassium bismuth titanate nano-microspheres can be widely applied to the high-tech technical fields of sensors, detectors, ultrasonic sensors and the like.
Method for preparing sodium-potassium bismuth titanate nano-microspheres by micro-emulsion method
The invention discloses a method for preparing sodium-potassium bismuth titanate nano-microspheres by a micro-emulsion method. The method comprises: I, weighing raw materials, dissolving sodium nitrate and potassium nitrate into water to obtain a mixture A, and mixing bismuth nitrate with water to obtain a mixture B; II, mixing cyclohexane with tetrabutyl titanate to obtain a mixture C; III, preparing mixing auxiliaries; IV, mixing the cyclohexane with the mixing auxiliaries to obtain a mixture D, regulating the pH value after dropwise adding the mixture A, and then, dropwise adding the mixture B, thereby obtaining a mixture E; V, mixing the mixture C with the mixture E, forming microemulsion by magnetically stirring, and carrying out ageing treatment on the microemulsion; and VI, centrifugally filtering, getting filter residues, washing and drying the filter residues, thereby obtaining the sodium-potassium bismuth titanate nano-microspheres. According to the method disclosed by the invention, the sodium-potassium bismuth titanate nano-microspheres with single perovskite phase are obtained under a relatively low temperature condition; and the sodium-potassium bismuth titanate nano-microspheres can be widely applied to the high-tech technical fields of sensors, detectors, ultrasonic sensors and the like.
Method for preparing sodium-potassium bismuth titanate nano-microspheres by micro-emulsion method
DU XIAN (author) / DU HUILING (author) / YAO MIAO (author)
2015-10-21
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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