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Preparation method of ultralong nanowire structure and nanoribbon structure copper calcium titanate

A technology of calcium copper titanate and nanowires, applied in the directions of nanotechnology, nanotechnology, chemical instruments and methods, etc., can solve the problems of unseen dimensional nanowires and nanoribbon structures.

Inactive Publication Date: 2016-03-02
XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently, the synthesized CaCu 3 Ti 4 o 12 Mainly 6-sided cubic structure, no one-dimensional nanowire and nanoribbon structures have been seen in the open literature

Method used

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  • Preparation method of ultralong nanowire structure and nanoribbon structure copper calcium titanate
  • Preparation method of ultralong nanowire structure and nanoribbon structure copper calcium titanate
  • Preparation method of ultralong nanowire structure and nanoribbon structure copper calcium titanate

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Experimental program
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Effect test

Embodiment 1

[0022] Preparation of ultra-long nanowire structure copper calcium titanate:

[0023] a, according to the chemical formula of calcium copper titanate CaCu 3 Ti 4 O 12 Weigh the mass of oxide raw materials as TiO 2 0.39g, CaO0.07g, CuO0.29g, and then weigh the salt masses as NaCl7.60g and KCl7.00g, put them in an agate ball mill tank and mill on the ball mill for 1 hour to make them evenly mixed;

[0024] b. Place the raw material mixture in step a in a corundum crucible for high-temperature reaction in a tube furnace, the reaction temperature is 650°C, and the reaction time is 4h;

[0025] c. Cool the sample obtained in step b to room temperature with the furnace, add deionized water to wash, filter, remove molten salt, and then clean it under 10kHz ultrasonic action to remove impurities, and then place the sample in a dry box at a temperature of 60 After drying at ℃ for 5 hours, the target product, ultra-long nanowire structure, copper calcium titanate, CaCu, is obtained 3 Ti 4 O 12...

Embodiment 2

[0027] Preparation of ultra-long nanobelt structure copper calcium titanate:

[0028] a, according to the chemical formula of calcium copper titanate CaCu 3 Ti 4 O 12 Weigh the mass of oxide raw materials as TiO 2 0.39g, CaO0.07g, CuO0.29g, and then weigh the salt masses as NaCl7.60g and KCl7.00g, put them in an agate ball mill tank and mill on the ball mill for 1 hour to make them evenly mixed;

[0029] b. Place the raw material mixture in step a in a corundum crucible for high-temperature reaction in a tube furnace, the reaction temperature is 850°C, and the reaction time is 4h;

[0030] c. Cool the sample obtained in step b to room temperature with the furnace, add deionized water to wash, filter, remove molten salt, and then clean it under 10kHz ultrasonic action to remove impurities, and then place the sample in a dry box at a temperature of 60 After drying at ℃ for 5 hours, the target product, ultra-long nanobelt structure copper calcium titanate CaCu 3 Ti 4 O 12 .

Embodiment 3

[0032] Preparation of ultra-long nanowire structure copper calcium titanate:

[0033] a, according to the chemical formula of calcium copper titanate CaCu 3 Ti 4 O 12 Weigh the mass of oxide raw materials as TiO 2 0.78-3.90g, CaO0.14g, CuO0.58g, and weigh the salt mass as NaCl14.05g and KCl13.25g into an agate mortar and ball mill on a ball mill for 3h to make it evenly mixed;

[0034] b. Place the raw material mixture in step a in a corundum crucible for high-temperature reaction in a tube furnace, the reaction temperature is 700°C, and the reaction time is 5 hours;

[0035] c. Cool the sample obtained in step b to room temperature with the furnace, add deionized water to wash, filter, remove molten salt, and then clean twice under the action of 30kHz ultrasound to remove impurities, and then place the sample in a dry box at a temperature of 60 After drying at ℃ for 5 hours, the target product, ultra-long nanowire structure, copper calcium titanate, CaCu, is obtained 3 Ti 4 O 12 .

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Abstract

The invention discloses a controllable preparation method of copper calcium titanate (CaCu3Ti4O12) with a super-long nanowire structure and nanoribbon structure. In the method, raw oxide materials such as TiO2, CaO and CuO used for preparing CaCu3Ti4O12 are dissolved in a eutectic system of NaCl and KCl at high temperature, and ions Ca<2+>, Cu<2+> and Ti<4+> are recombined at a migration rate of 10<-5>-10<-8>cm<2> / s to form a CaCu3Ti4O12 one-dimensional material with the nanowire structure and nanoribbon structure. The method has the characteristics of few raw material varieties, simple and convenient operation, simple process, low cost, environment friendliness and the like. Prepared CaCu3Ti4O12 with the super-long nanowire structure and nanoribbon structure has great significance in study of the visible-light response photocatalytic mechanism of CaCu3Ti4O12 and preparation of one-dimensional nanomaterials of other compounds, and simultaneously has wide guiding significance in preparation of quaternary compounds with nanowire and nanoribbon structures.

Description

Technical field [0001] The invention relates to a method for preparing copper calcium titanate with an ultra-long nanowire structure and a nanobelt structure, and belongs to the field of photocatalytic nano materials. Background technique [0002] One-dimensional nanomaterials have been extensively studied in recent years or even in recent decades, which is determined by their size-dependent properties. Compared with bulk nanomaterials, they have unique physical and chemical properties, so they often It has a wide range of applications in photovoltaics, photovoltaics, electrochemistry and electromechanics. Therefore, the synthesis of one-dimensional nanomaterials has important fundamental significance for the current scientific and technological applications. [0003] In the past ten years, various binary compounds, one-dimensional nanomaterials, such as TiO 2 , ZnO, SnO 2 , MnO 2 , Ga 2 O 3 Have been successfully synthesized; ternary compounds, one-dimensional nanomaterials, such...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G23/00B82Y30/00B82Y40/00
Inventor 王传义李英宣何洪泉
Owner XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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