A kind of preparation method of bismuth oxycarbonate nanobelt

A technology of bismuth oxycarbonate nanometer and deionized water is applied in chemical instruments and methods, bismuth compounds, inorganic chemistry and other directions, which can solve the problems that have not been seen, and achieve the effects of simple device, low energy consumption and high purity

Inactive Publication Date: 2017-02-01
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Haven't seen Bi yet 2 o 2 CO 3 The report of nanoribbon structure has not been seen without additional introduction of CO 2 Reagents and morphology control additives (surfactants, organic polymers), and direct use of solvents to achieve phase and morphology control at the same time for the simple solvothermal preparation of Bi 2 o 2 CO 3 Nanobelt reports

Method used

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  • A kind of preparation method of bismuth oxycarbonate nanobelt
  • A kind of preparation method of bismuth oxycarbonate nanobelt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Step 1: Mix ethanolamine and deionized water at a volume ratio of 0.8:1, and stir magnetically for 7 minutes to obtain a mixed solution;

[0032] Step 2: Bi(NO 3 ) 3 ·5H 2 O was added to the above mixed solution, stirred magnetically for 25 minutes, and then ultrasonically treated for 13 minutes to obtain a white suspension, which was the precursor solution of the hydrothermal reaction. Bi(NO 3 ) 3 The concentration is 0.1mol / L;

[0033] Step 3: transfer the precursor liquid into the hydrothermal reaction kettle, the filling rate of the hydrothermal reaction kettle is 74%, put it into a constant temperature blast drying oven, keep it at 140°C for 16 hours, and then stop the reaction;

[0034] Step 4: After the reaction temperature drops to room temperature, take out the hydrothermal reaction kettle, centrifuge to separate the white precipitate obtained from the reaction, wash the precipitate with deionized water and absolute ethanol until it is neutral, and dry it ...

Embodiment 2

[0036] Step 1: Mix ethanolamine and deionized water at a volume ratio of 1:1, and stir magnetically for 6 minutes to obtain a mixed solution;

[0037] Step 2: Bi(NO 3 ) 3 ·5H 2 O was added to the above mixed solution, stirred magnetically for 22 minutes, and then ultrasonically treated for 12 minutes to obtain a white suspension, which was the precursor of the hydrothermal reaction. Bi(NO 3 ) 3 The concentration is 0.08mol / L;

[0038] Step 3: transfer the precursor solution into a hydrothermal reaction kettle, the filling rate of the hydrothermal reaction kettle is 72%, put it into a constant temperature blast drying oven, keep it at 130°C for 18 hours, and then stop the reaction;

[0039] Step 4: After the reaction temperature drops to room temperature, take out the hydrothermal reaction kettle, centrifuge to separate the white precipitate obtained from the reaction, wash the precipitate with deionized water and absolute ethanol until it is neutral, and dry it at 78°C fo...

Embodiment 3

[0041] Step 1: Mix ethanolamine and deionized water at a volume ratio of 1.5:1, and stir magnetically for 5 minutes to obtain a mixed solution;

[0042] Step 2: Bi(NO 3 ) 3 ·5H 2 O was added to the above mixed solution, stirred magnetically for 20 minutes, and then ultrasonically treated for 10 minutes to obtain a white suspension, which was the precursor solution of the hydrothermal reaction. Bi(NO 3 ) 3 The concentration is 0.05mol / L;

[0043] Step 3: Transfer the precursor liquid into the hydrothermal reaction kettle, the filling rate of the hydrothermal reaction kettle is 70%, put it into a constant temperature blast drying oven, keep it at 120°C for 20 hours, and then stop the reaction;

[0044] Step 4: After the reaction temperature drops to room temperature, take out the hydrothermal reaction kettle, centrifuge to separate the white precipitate obtained from the reaction, wash the precipitate with deionized water and absolute ethanol until neutral, and dry it at 80...

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Abstract

The invention provides a preparation method of a bismuth subcarbonate nanoribbon. The method comprises the steps that Bi(NO3)3.5H2O serves as the raw material and is added to a mixed solution of ethanolamine and water, and magnetic stirring and ultrasonic treatment are conducted; obtained white suspension is transferred to a hydrothermal reaction kettle for a reaction, after the reaction is completed, cooling is conducted, white precipitate in the reaction kettle is taken out, washed and dried, and the bismuth subcarbonate nanoribbon is obtained. The method has the advantages that devices are simple, the temperature ranging from 120 DEG C to 140 DEG C is low, and environmental protection is achieved due to the fact that the synthesis reaction is conducted in a sealed system; a chemical reagent capable of being decomposed to generate CO2 does not need to be introduced to serve as the raw material, powder is synthesized in one time through a solvent-thermal method, high-temperature calcination is not needed, synthesized powder is high in purity, high in crystallinity and regular in morphology, and the preparation method is simple in technology, high in efficiency, low in energy consumption, low in cost and environmentally friendly.

Description

technical field [0001] The invention belongs to the field of functional materials, and in particular relates to a preparation method of bismuth oxycarbonate nanobelts. Background technique [0002] The use of photocatalytic technology for sewage treatment can effectively degrade organic matter and reduce heavy metal ions. Moreover, the technology requires low energy consumption, simple operation, mild reaction conditions, and no secondary pollution. Therefore, photocatalysis is a promising technology for environmental governance. Bismuth oxycarbonate (Bi 2 o 2 CO 3 ) is also known as bismuth subcarbonate and bismuth subcarbonate. Bi 2 o 2 CO 3 The crystal structure is composed of (Bi 2 o 2 ) 2+ layers and CO 3 2- The layers are arranged in a staggered manner, which is a typical "sillen" structure. (Bi 2 o 2 ) 2+ layers and CO 3 2- The internal electrostatic field formed by the alternating intergrowth of layers is beneficial to promote the separation of pho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G29/00
CPCC01G29/00C01P2002/72C01P2004/03C01P2004/17
Inventor 李海斌黄国游付圣豪陈曙光李富进刘鹏张健
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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