Preparation method of bismuth subcarbonate nanoribbon

A technology of bismuth oxycarbonate nanometer and deionized water, which is applied in chemical instruments and methods, bismuth compounds, inorganic chemistry, etc., and can solve unseen problems

Inactive Publication Date: 2016-04-13
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 (surfactant

Method used

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  • Preparation method of bismuth subcarbonate nanoribbon
  • Preparation method of bismuth subcarbonate nanoribbon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0032] Step 2: Put Bi(NO 3 ) 3 ·5H 2 O was added to the above mixed solution, and after magnetic stirring for 25 min, ultrasonic treatment was performed for 13 min to obtain a white suspension, which was the hydrothermal reaction precursor. Bi(NO) in the precursor solution 3 ) 3 The concentration of 0.1mol / L;

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

[0034] Step 4: After the reaction temperature dropped to room temperature, the hydrothermal reactor was taken out, the white precipitate obtained by the reaction was separated by centrifugation, the precipitate was washed with deionized water and absolute ethanol u...

Embodiment 2

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

[0037] Step 2: Put Bi(NO 3 ) 3 ·5H 2 O was added to the above mixed solution, and after magnetic stirring for 22 min, ultrasonic treatment for 12 min was performed to obtain a white suspension, which was the hydrothermal reaction precursor. Bi(NO) in the precursor solution 3 ) 3 The concentration of 0.08mol / L;

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

[0039] Step 4: After the reaction temperature drops to room temperature, the hydrothermal reactor is taken out, the white precipitate obtained by the reaction is separated by centrifugation, washed with deionized water and absolute ethanol until neutral, a...

Embodiment 3

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

[0042] Step 2: Put Bi(NO 3 ) 3 ·5H 2 O was added to the above mixed solution, and after magnetic stirring for 20 min, ultrasonic treatment was performed for 10 min to obtain a white suspension, which was the hydrothermal reaction precursor. Bi(NO) in the precursor solution 3 ) 3 The concentration of 0.05mol / L;

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

[0044] Step 4: After the reaction temperature drops to room temperature, the hydrothermal reactor is taken out, the white precipitate obtained by the reaction is separated by centrifugation, the precipitate is washed with deionized water and absolute...

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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, in particular to a preparation method of a bismuth oxycarbonate nanobelt. Background technique [0002] Using photocatalytic technology for sewage treatment can effectively degrade organic matter and reduce heavy metal ions. In addition, the technology has the advantages of low energy consumption, simple operation, mild reaction conditions and no secondary pollution. Therefore, photocatalysis is a promising environmental remediation technology. 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+ Layer and CO 3 2- The layers are staggered, which is a typical "sillen" structure. (Bi 2 O 2 ) 2+ Layer and CO 3 2- The internal electrostatic field formed by the alternating symbiosis of the layers is beneficial to promote the separation of photogenerated electrons and...

Claims

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Application Information

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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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