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Bismuth titanate nanoneedle and preparation method thereof

A technology of bismuth titanate and nanoneedles, which is applied in nanotechnology, nanotechnology, chemical instruments and methods, etc., can solve the problems of reported and unexisted bismuth titanate nanoneedles, and achieve low preparation temperature, large-scale preparation, and large-scale small effect

Inactive Publication Date: 2013-12-25
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, so far, no bismuth titanate nanoneedles have been reported

Method used

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  • Bismuth titanate nanoneedle and preparation method thereof
  • Bismuth titanate nanoneedle and preparation method thereof
  • Bismuth titanate nanoneedle and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Mix bismuth chloride, tetrabutyl titanate and water evenly, put them into the reaction vessel and seal it, wherein the molar ratio of bismuth chloride and tetrabutyl titanate is 1:1, bismuth chloride, tetrabutyl titanate Accounting for 10% by weight of water solvent. After being kept at 180 ℃ for 24 h, a white floc product of bismuth titanate nanoneedles with a length of about 1 μm and a tip diameter of about 10 nm was obtained.

Embodiment 2

[0025] Mix bismuth chloride, tetrabutyl titanate and water evenly, put them into the reaction vessel and seal it, wherein the molar ratio of bismuth chloride and tetrabutyl titanate is 1:1, bismuth chloride, tetrabutyl titanate Accounting for 8% by weight of water solvent. After being kept at 180 ℃ for 12 h, the white floc product of bismuth titanate nanoneedles with a length of about 1 μm and a tip diameter of about 10 nm was obtained.

Embodiment 3

[0027] Mix bismuth chloride, tetrabutyl titanate and water evenly, put them into the reaction vessel and seal it, wherein the molar ratio of bismuth chloride and tetrabutyl titanate is 1:1, bismuth chloride, tetrabutyl titanate Accounting for 8% by weight of water solvent. After incubation at 150 ℃ for 6 h, a white floc product of bismuth titanate nanoneedles with a length of about 1 μm and a tip diameter of about 10 nm was obtained.

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Abstract

The invention discloses a bismuth titanate nanoneedle and a preparation method of the bismuth titanate nanoneedle, and belongs to the technical field of nanometer material preparation. The bismuth titanate nanoneedle is composed of cubic Bi2Ti2O7 and Bi12TiO20 crystalline phases and is about 1-micron long. The diameter of the tip of the nanoneedle is about 10 nanometers. According to the preparation method, bismuth chloride and tetrabutyl titanate are used as raw materials, and water is used as a solvent, wherein the molar ratio of the bismuth chloride to the tetrabutyl titanate is 1:1; the bismuth chloride, the tetrabutyl titanate and the water are mixed uniformly before being placed in a reaction vessel and sealed at the temperature of 100-180 DEG C to preserve heat for 4-24 hours; the weight of the bismuth chloride and the tetrabutyl titanate is not larger than 10% of the weight of the water, and the white flocculent bismuth titanate nanoneedle can be obtained at last. The preparation process is simple, and surfactants are not needed; the raw materials and the preparation process do not cause pollution to the environment, meet the environmental requirements and conform to the development direction of the modern industry; a large number of the bismuth titanate nanoneedles can be prepared.

Description

technical field [0001] The invention belongs to the technical field of nanomaterial preparation, and in particular relates to a bismuth titanate nanoneedle and a preparation method thereof. Background technique [0002] Bismuth titanate is a semiconductor material with a layered perovskite structure, which has the characteristics of low dielectric constant, high spontaneous polarization, small coercive electric field, low aging rate, and can work stably under high temperature and high frequency conditions. , memory and sensors and other devices have a wide range of application prospects. In addition, bismuth titanate has semiconductor photocatalytic properties, and has good photocatalytic effects on dyes methylene blue, rhodamine B, and methyl orange in the ultraviolet and visible light regions. It is expected to be used as a photocatalyst for industrial water treatment and architectural coatings. Realize self-cleaning function. Using different titanium and bismuth sources...

Claims

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Application Information

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IPC IPC(8): C01G29/00B82Y30/00B82Y40/00
Inventor 裴立宅蔡征宇
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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