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Preparation method of NbB6 nanoparticles

A nanoparticle and ionic liquid technology, applied in the field of advanced nanomaterial preparation, can solve the problems of time-consuming and energy consumption, and achieve the effects of large specific surface area, strong antibacterial activity, and excellent activity of Enterobacter aerogenes

Inactive Publication Date: 2020-03-10
CHENGDU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently, NbB 6 The preparation of nano-micron powder is mainly prepared by high-temperature sintering, which not only consumes energy but also takes time

Method used

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  • Preparation method of NbB6 nanoparticles
  • Preparation method of NbB6 nanoparticles
  • Preparation method of NbB6 nanoparticles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) 2mmolNbCl 3 Add 30 mL of 1-butyl-3-methylimidazolium dicyanamide salt ionic liquid, and stir for 27 minutes under the protection of argon to form a solution;

[0025] (2) Transfer the mixed solution of step (1) to a 50mL reactor under the protection of argon, and feed borane to make borane and NbCl 3 The mol ratio is 9:1, airtight reactor;

[0026] (3) Turn on the liquid phase plasma, the power is 900W, and the mixed solution in the reaction kettle of step (2) is treated at room temperature for 60min to obtain NbB 6 Crude nanoparticles;

[0027] (4) Wash the product three times with deionized water, then three times with absolute ethanol, and dry it for later use.

Embodiment 2

[0029] (1) 2mmolNbCl 3 Add 30 mL of 1-butyl-3-methylimidazolium dicyanamide salt ionic liquid, and stir for 27 minutes under the protection of argon to form a solution;

[0030] (2) Transfer the mixed solution of step (1) to a 50mL reactor under the protection of argon, and feed borane to make borane and NbCl 3 The mol ratio is 9:1, airtight reactor;

[0031] (3) Turn on the liquid phase plasma, the power is 1000W, and the mixed solution in the reaction kettle of step (2) is treated at room temperature for 60min to obtain NbB 6 Crude nanoparticles;

[0032] (4) Wash the product three times with deionized water, then three times with absolute ethanol, and dry it for later use.

Embodiment 3

[0034] (1) 2mmolNbCl 3 Add 30 mL of 1-butyl-3-methylimidazolium dicyanamide salt ionic liquid, and stir for 27 minutes under the protection of argon to form a solution;

[0035] (2) Transfer the mixed solution of step (1) to a 50mL reactor under the protection of argon, and feed borane to make borane and NbCl 3 The mol ratio is 9:1, airtight reactor;

[0036] (3) Turn on the liquid-phase plasma with a power of 800W, and process the mixed solution in the reactor in step (2) for 60 minutes at room temperature to obtain NbB 6 Crude nanoparticles;

[0037] (4) Wash the product three times with deionized water, then three times with absolute ethanol, and dry it for later use.

[0038] NbB of the present invention 6 Properties of Nanoparticles:

[0039] The sample prepared in Example 1 was characterized by TEM, figure 1 TEM image of the sample. from figure 1 It can be seen that the average particle size of the sample is about 15nm.

[0040] The phase composition of the samp...

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Abstract

The invention discloses a preparation method of NbB6 nanoparticles. According to the preparation method, the NbB6 nanoparticles are synthesized by reducing NbCl3 in 1-butyl-3-methylimidazolium dicyandiamide salt ionic liquid at room temperature by utilizing borane through a liquid phase plasma technology. Compared with commercial NbB6, the NbB6 nanoparticles prepared by the preparation method disclosed by the invention are larger in specific surface area and stronger in antibacterial effect. Compared with the amikacin and the vetimicin sulfate, the NbB6 nanoparticles prepared by the preparation method disclosed by the invention show stronger antibacterial activity on enterobacter aerogenes. The excellent antibacterial property of the enterobacter aerogenes is expected to expand the wide application of the NbB6 nanoparticles in the clinical treatment fields of urinary tract infection, respiratory tract infection, wound infection, septicemia and the like with drug resistance.

Description

technical field [0001] The present invention relates to a kind of NbB 6 The nano particle method belongs to the technical field of advanced nano material preparation. Background technique [0002] Nb 6 It is an important oxygen-free functional ceramic material. Currently, NbB 6 The preparation of nano-micron powder is mainly prepared by high-temperature sintering, which not only consumes energy but also takes time. Therefore, it is very necessary to develop new green synthetic methods or technical pathways to prepare NbB 6 . Contents of the invention [0003] The present invention utilizes borane to reduce NbCl in 1-butyl-3-methylimidazolium dicyanamide salt ionic liquid at room temperature for the first time through liquid phase plasma technology 3 Synthesize NbB 6 The nanoparticles have an average particle diameter of about 15nm and have better activity of Enterobacter aerogenes. Enterobacter aerogenes is an important opportunistic pathogen, which can cause urina...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B35/04B82Y40/00
CPCC01B35/04C01P2004/04C01P2002/72C01P2006/12C01P2004/64
Inventor 童东革侯力萍周瑞
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
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