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Two-dimension carbide loaded metal simple substance nano-powder, and preparation method and application thereof

A two-dimensional carbide, metal-loaded technology, applied in chemical instruments and methods, chemical/physical processes, special compound water treatment, etc., can solve problems such as rarely studied two-dimensional carbide nanomaterials and metal nanoparticle loading , to achieve the effect of good application prospect, low cost and mild reaction conditions

Inactive Publication Date: 2016-08-17
HENAN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The research work in the prior art is mainly on the adsorption of MXene single-component and supported oxide nanocomposites [ZL201410137498.6], the performance of lithium batteries and supercapacitors, and few studies on two-dimensional carbide nanomaterials and metal single substance nanoparticles load

Method used

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  • Two-dimension carbide loaded metal simple substance nano-powder, and preparation method and application thereof
  • Two-dimension carbide loaded metal simple substance nano-powder, and preparation method and application thereof
  • Two-dimension carbide loaded metal simple substance nano-powder, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Its preparation method of a kind of two-dimensional carbide supported metal simple substance Ag nanopowder, comprises the steps:

[0026] (1) Phase 5g MAX with Ti 3 AlC 2 The powder was submerged in 100mL 6M hydrochloric acid solution dissolved with 5g lithium fluoride, stirred magnetically at 40°C for 48 hours, centrifuged to separate the precipitate, washed with deionized water until it was nearly neutral, and then washed three times with absolute ethanol, and the precipitate was Vacuum drying at 80°C for 12 hours, the resulting solid powder is a two-dimensional carbide;

[0027] (2) Weigh 0.1g of silver nitrate and dissolve it in 50 mL of deionized water, and stir at room temperature; disperse 0.5g of two-dimensional carbide solid powder into the above silver nitrate aqueous solution to make a blend solution, and stir evenly;

[0028] (3) Mix 50mL of 0.1mol / L NaBH under vigorous stirring 4 Slowly add the aqueous solution into the above blended solution of silver n...

Embodiment 2

[0030] A method for preparing a two-dimensional carbide supported metal elemental Au nanopowder, comprising the steps of:

[0031] (1) Phase 5g MAX with Ti 3 AlC 2 The powder was submerged in 100mL 6M hydrochloric acid solution dissolved with 5g lithium fluoride, stirred magnetically at 40°C for 48 hours, centrifuged to separate the precipitate, washed with deionized water until it was nearly neutral, and then washed three times with absolute ethanol, and the precipitate was The solid powder obtained by vacuum drying at 80°C for 12 hours is a two-dimensional carbide;

[0032] (2) Measure 10 mL of 0.01 g / mL chloroauric acid solution and disperse it in 50 mL of deionized water, stir well at room temperature; disperse 0.5 g of two-dimensional carbide solid powder into the above chloroauric acid aqueous solution to make a blended solution, Stir well;

[0033] (3) Mix 50mL of 0.1mol / L NaBH under vigorous stirring 4 Slowly add the aqueous solution into the blended solution of ch...

Embodiment 3

[0035] A method for preparing a two-dimensional carbide supported metal elemental Pd nanopowder, comprising the steps of:

[0036] (1) Phase 5g MAX with Ti 3 AlC 2 The powder was immersed in 100mL 6M hydrochloric acid solution dissolved with 5g lithium fluoride, stirred magnetically at 40°C for 48h, centrifuged to separate the precipitate, washed with deionized water until it was nearly neutral, and then washed three times with absolute ethanol, and the precipitate was The solid powder obtained by vacuum drying at 80°C for 12 hours is a two-dimensional carbide;

[0037] (2) Measure 10 mL of 0.01 g / mL palladium chloride solution and disperse it in 50 mL of deionized water, stir well at room temperature; disperse 0.5 g of two-dimensional carbide solid powder into the above palladium chloride aqueous solution to make a blended solution, Stir well;

[0038] (3) Mix 50mL of 0.1mol / L NaBH under vigorous stirring 4 Slowly add the aqueous solution into the above-mentioned blended ...

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Abstract

The invention relates to two-dimension carbide loaded metal simple substance nano-powder, and a preparation method and an application thereof. The preparation method comprises the following steps: (1) soaking MAX phase ceramic powder in a hydrochloric acid solution in which lithium fluoride is dissolved, stirring, centrifugally separating, washing with deionized water and ethyl alcohol, drying and then acquiring solid powder, namely, two-dimension carbide; (2) dissolving the two-dimension carbide in a metal saline solution and preparing into a mixing solution; (3) adding a reducing agent aqueous solution into the mixing solution while stirring, reacting for 0.5-2h at room temperature, and washing and drying the solid precipitate acquired by centrifuging the turbid liquid after ending the reaction, thereby acquiring the two-dimension carbide loaded metal simple substance nano-powder. According to the invention, the uniform loading of metal simple substance nano-particles on the surface of the two-dimension carbide and between the layers is realized; according to the method, various metal simple substance nano-particles are loaded onto the two-dimension carbide; the prepared two-dimension carbide loaded metal simple substance nano-powder as a photocatalyst has excellent application prospect in the field of treating organic pollutants in sewage.

Description

technical field [0001] The invention belongs to the field of preparation of nanocomposite materials, and in particular relates to a two-dimensional carbide-supported metal element nanopowder, a preparation method and an application thereof. Background technique [0002] MXene is a new type of two-dimensional carbide nanomaterial with a graphene-like structure. It is a transition metal carbide or carbonitride obtained by etching the active metal layer "A" element of the MAX phase of the ternary layered ceramic with hydrofluoric acid. , has attracted extensive research in recent years due to its special physicochemical properties. To date, the MXene family includes: Ti 3 C 2 、Ti 2 C, V 2 C. Nb 2 C.Mo 2 C, (Ti 0.5 Nb 0.5 ) 2 C.Ti 3 CN, (V 0.5 Cr 0.5 ) 3 C 2 , and Ta 4 C 3 MXene has a two-dimensional sheet structure similar to graphene and a large specific surface area, and can be widely used in many technical fields such as adsorption, catalysis, supercapacitor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/22C02F1/30C02F1/72
CPCC02F1/30C02F1/725B01J27/22C02F2305/10C02F2101/30B01J35/393B01J35/39
Inventor 王李波张恒申长洁周爱国胡前库曹新鑫
Owner HENAN POLYTECHNIC UNIV
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