Synthesis method for loading cobaltosic oxide on butterfly wings as biological template and application thereof

A technology of cobalt tetroxide and biological template, applied in the direction of cobalt oxide/cobalt hydroxide, nanotechnology, etc., can solve the problems of limiting the application of gas sensing performance, and achieve the effect of improving sensitivity, reducing response time and recovery time, and low implementation cost

Inactive Publication Date: 2016-05-25
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In summary, due to the ability to influence Co 3 o 4 There are many factors of materials, which limits its application in gas sensing performance

Method used

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  • Synthesis method for loading cobaltosic oxide on butterfly wings as biological template and application thereof
  • Synthesis method for loading cobaltosic oxide on butterfly wings as biological template and application thereof
  • Synthesis method for loading cobaltosic oxide on butterfly wings as biological template and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A kind of Co 3 o 4 -The synthetic method of biotemplate composite material is prepared according to the following steps:

[0041] Step 1, add 35 mass parts deionized water in the beaker, add 2.41mmolCo(NO 3 ) 2 ·6H 2 O, 1.42mmolC 4 h 4 KNaO 6 4H 2 O, 12.5mmolH 2 NCONH 2 and 4.86 mmol NH 4 F. Stir magnetically for 30 minutes until evenly dispersed to obtain a precursor mixed solution. Put the butterfly wings into 50ml of absolute ethanol for soaking. After soaking for 30 minutes, rinse with deionized water for 8 times. After washing, put the butterfly wings into the above precursor In the mixed solution, the butterfly wings and the precursor mixed solution were put into the reaction kettle together, and the hydrothermal reaction was carried out at 120°C for 5 hours;

[0042] Step 2. After the hydrothermal reaction is over, rinse off the pink solid remaining on the butterfly wings with deionized water. After rinsing, put the butterfly wings into a porcelain ark...

Embodiment 2

[0044] A kind of Co 3 o 4 -The synthetic method of biotemplate composite material is prepared according to the following steps:

[0045] Step 1, add 35 mass parts deionized water in the beaker, add 2.41mmolCo(NO 3 ) 2 ·6H 2 O, 1.42mmolC 4 h 4 KNaO 6 4H 2 O, 12.5mmolH 2 NCONH 2 and 4.86 mmol NH 4 F. Stir magnetically for 30 minutes until evenly dispersed to obtain a precursor mixed solution. Put the butterfly wings into 50ml of absolute ethanol for soaking. After soaking for 30 minutes, rinse with deionized water for 8 times. After washing, put the butterfly wings into the above precursor In the mixed solution, the butterfly wings and the precursor mixed solution were put into the reaction kettle together, and the hydrothermal reaction was carried out at 120°C for 5 hours;

[0046] Step 2. After the hydrothermal reaction is over, rinse off the pink solid remaining on the butterfly wings with deionized water. After rinsing, put the butterfly wings into a porcelain ark...

Embodiment 3

[0048] A kind of Co 3 o 4 -The synthetic method of biotemplate composite material is prepared according to the following steps:

[0049] Step 1, add 35 mass parts deionized water in the beaker, add 2.41mmolCo(NO 3 ) 2 ·6H 2 O, 1.42mmolC 4 h 4 KNaO 6 4H 2 O, 12.5mmolH 2 NCONH 2 and 4.86 mmol NH 4 F. Stir magnetically for 30 minutes until evenly dispersed to obtain a precursor mixed solution. Put the butterfly wings into 50ml of absolute ethanol for soaking. After soaking for 30 minutes, rinse with deionized water for 8 times. After washing, put the butterfly wings into the above precursor In the mixed solution, the butterfly wings and the precursor mixed solution were put into the reaction kettle together, and the hydrothermal reaction was carried out at 120°C for 5 hours;

[0050] Step 2. After the hydrothermal reaction is over, rinse off the pink solid remaining on the butterfly wings with deionized water. After rinsing, put the butterfly wings into a porcelain ark...

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Abstract

The invention discloses a synthesis method for loading cobaltosic oxide on butterfly wings as a biological template and an application thereof. According to the detection of the Co3O4-biological template composite material prepared by the synthesis method, the concentration of methanol gas is reduced to 50ppm, the response time is 36-90s, and the recovery time is 39-92s. According to the Co3O4-biological template composite material prepared by the synthesis method disclosed by the invention, the specific surface area of the Co3O4 material is increased, the dimensionality of the Co3O4 material is changed, and the synthesis method has the advantages of low implementation cost, easiness in operation, short time and high efficiency and economy. In methanol detection, the Co3O4-biological template composite material disclosed by the invention increases the binding rate between the gas molecules and the Co3O4 nano structure, reduces the response time and recovery time of the Co3O4 material and improves the sensitivity, stability, selectivity and response precision.

Description

technical field [0001] The invention belongs to the field of new nanometer materials, and specifically relates to a synthesis method and application of tricobalt tetroxide loaded onto butterfly wings as biological templates. Background technique [0002] co 3 o 4 As a member of the one-dimensional nanomaterial system, it is a very important multifunctional wide bandgap P-type semiconductor. Due to its large specific surface area and high surface carrier transport rate, this new nanometer The structure has great potential in the application of gas sensor. But a single Co 3 o 4 The morphology, dimensionality, specific surface area, and void structure of the material are all likely to affect the Co 3 o 4 Gas-sensing properties of materials. Specifically reflected in the following aspects: First, due to Co 3 o 4 The difference in morphology will result in different exposed crystal planes, and different crystal planes will affect the gas-sensing performance of the sample...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G51/04B82Y40/00
CPCC01G51/04C01P2002/72C01P2004/03C01P2004/04C01P2004/16C01P2004/62
Inventor 张久杰梁砚琴杨贤金崔振铎朱胜利李朝阳
Owner TIANJIN UNIV
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