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A kind of metal nanomaterial and its synthesis method using carbon-based material as template

A carbon-based material, metal nanotechnology, applied in nanotechnology, material electrochemical variables, metal material coating process, etc., to achieve mild reaction conditions, improve analysis and detection performance, and improve the effect of electrode performance

Active Publication Date: 2018-08-21
YANTAI INST OF COASTAL ZONE RES CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are no public reports about materials such as graphene and carbon nanotubes used as templates to synthesize nanomaterials with similar structures.

Method used

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  • A kind of metal nanomaterial and its synthesis method using carbon-based material as template
  • A kind of metal nanomaterial and its synthesis method using carbon-based material as template
  • A kind of metal nanomaterial and its synthesis method using carbon-based material as template

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Synthesis of novel bismuth nanomaterials using graphene as a template and hydrohydrazine as a reducing agent:

[0028] Prepare 1-20mmol bismuth nitrate solution with deionized water, then add a small amount of graphene as a template material to the solution and stir and mix evenly, after that, quickly adjust the pH to 10-14 with ammonia water and add excess 80 % aqueous hydrazine, stirred vigorously for 0.5-3h, transferred the mixture into a polytetrafluoroethylene-lined hydrothermal reaction kettle, sealed, reacted at 100-300°C for 8-20h, cooled, separated the reaction product and used it Deionized water and dehydrated alcohol wash, dry, obtain the bismuth material (see figure 1 and figure 2 ).

[0029] Depend on figure 1 and 2 It can be seen that the new nano-sheet bismuth material is a two-dimensional sheet structure similar to the graphene structure. The thickness of the bismuth nano-sheet is about 3-4nm, and the average diameter is about 100-200nm; the main el...

Embodiment 2

[0031] Synthesis of new nanomaterials using carbon nanotubes as templates and sodium borohydride as reducing agents:

[0032] Prepare 1-20mmol bismuth nitrate solution with deionized water, then add a small amount of carbon nanotubes to the solution as a template material and stir and mix evenly, after that, quickly adjust the pH to 10-14 with ammonia water and add excess Sodium borohydride, stir vigorously for 0.5-3h, transfer the mixture into a polytetrafluoroethylene-lined hydrothermal reaction kettle and seal it, react at 100-300°C for 8-20h, cool down, separate the reaction product and use deionized After washing with water and absolute ethanol and drying, a novel bismuth nanomaterial synthesized with carbon nanotubes as a template is obtained.

Embodiment 3

[0034] Using titanium carbide as a template and sodium citrate as a reducing agent to synthesize new nanomaterials by heating and refluxing:

[0035] Prepare 1-20mmol bismuth nitrate solution with deionized water, then add a small amount of titanium carbide as a template material to the solution and stir and mix evenly, after that, quickly adjust the pH to 10-14 with ammonia water and add excess lemon to the mixed solution Sodium acid, stir vigorously for 0.5-3h, transfer the mixture into a round-bottomed flask for heating and reflux reaction, react at 100-300°C for 8-20h, cool, and wash the reaction product with deionized water and absolute ethanol after separation and drying to obtain a novel bismuth nanomaterial synthesized with titanium carbide as a template.

[0036] At the same time the aforementioned bismuth can be replaced by tin or antimony.

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Abstract

The invention relates to metal nanometer materials, in particular to a metal nanometer material with a carbon-based material as a template and a synthesis method thereof. The metal nanometer material is formed by depositing, by weight, 80-90% of metal elements on the surface of the carbon-based material. According to the method, the carbon-based material is used for synthesis of the metal nanometer material as the template. The method has the characteristics that the reaction condition is moderate and the process is simple. The metal nanometer material synthesized according to the method can be used as an electrode modification material to be used for detecting biogenic elements and heavy metal in environmental water by being combined with the electrochemical measuring technology.

Description

technical field [0001] The invention relates to a metal nano material, specifically a metal nano material with a carbon-based material as a template, a synthesis method and an application thereof. Background technique [0002] Tin, antimony and bismuth belong to the p-block metal elements in the periodic table of elements, and their valence states in oxides are generally +2 and +3. The metal ions with lone pairs of electrons deviate from the symmetry center of their ligands. The asymmetric coordination environment will lead to a series of physical properties of their oxides, including ferroelectricity, piezoelectricity, nonlinear optical effects, photoelectric and electro-optic effects, photoinduced luminescence, and photocatalytic properties. At present, the research on this kind of metal oxide materials as photocatalysts is the most, such as developing new synthesis methods to prepare metal-based materials with different shapes; improving the characteristics of metal-based...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C18/52B82Y40/00G01N27/26
Inventor 潘大为胡雪萍
Owner YANTAI INST OF COASTAL ZONE RES CHINESE ACAD OF SCI
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