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Method of preparing EuB6 nano cubic crystal at low temperature

A nano-cube and crystal technology, applied in the field of low-temperature preparation of EuB6 nano-cube crystals, can solve the problems of energy consumption and non-greenness, and achieve good antibacterial activity

Inactive Publication Date: 2019-04-23
CHENGDU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, to date, EuB 6 Alloy crystals are synthesized under harsh high-temperature sintering reaction conditions up to several hundred degrees Celsius, which makes the entire preparation process energy-consuming and not green.

Method used

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  • Method of preparing EuB6 nano cubic crystal at low temperature
  • Method of preparing EuB6 nano cubic crystal at low temperature
  • Method of preparing EuB6 nano cubic crystal at low temperature

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) 2mmol EuCl 3 , 0.04mmol PVP (molecular weight is 8000) and 0.04mmol potassium sulfate are mixed in 20mL ionic liquid, stir 10 minutes under argon protection, to form a solution;

[0033] (2) Under the protection of argon, transfer the mixed solution of step (1) into a 50mL reaction kettle, feed borane, and make 30mmol borane and EuCl 3 Closed reactor;

[0034] (3) Open the liquid phase plasma, the power is 500W, and the mixed solution in the reaction kettle of step (2) is at 60 After being processed for 45min, the prepared product was obtained;

[0035] (4) Wash the product three times with deionized water, then three times with absolute ethanol, and dry it for later use.

Embodiment 2

[0037] (1) 2mmol EuCl 3 , 0.04mmol PVP (molecular weight is 8000) and 0.04mmol potassium sulfate are mixed in 20mL ionic liquid, stir 10 minutes under argon protection, to form a solution;

[0038] (2) Under argon protection, transfer the mixed solution of step (1) into a 50mL reaction kettle, feed borane, and make 20mmol borane and EuCl 3 Closed reactor;

[0039] (3) Open the liquid phase plasma, the power is 500W, and the mixed solution in the reaction kettle of step (2) is at 60 After being processed for 45min, the prepared product was obtained;

[0040] (4) Wash the product three times with deionized water, then three times with absolute ethanol, and dry it for later use.

Embodiment 3

[0042] (1) 2mmol EuCl 3 , 0.04mmol PVP (molecular weight is 8000) and 0.04mmol potassium sulfate are mixed in 20mL ionic liquid, stir 10 minutes under argon protection, to form a solution;

[0043] (2) Under argon protection, transfer the mixed solution of step (1) into a 50mL reaction kettle, feed borane, and make 40mmol borane and EuCl 3 Closed reactor;

[0044] (3) Open the liquid phase plasma, the power is 500W, and the mixed solution in the reaction kettle of step (2) is at 60 After being processed for 45min, the prepared product was obtained;

[0045] (4) Wash the product three times with deionized water, then three times with absolute ethanol, and dry it for later use.

[0046] EuB of the present invention 6 Properties of nanocube crystals:

[0047] The material prepared in Example 1 was characterized by TEM, figure 1 It is a low magnification TEM image of the sample, it can be seen that EuB 6 The nanocube particles were successfully prepared, and the average pa...

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Abstract

The invention discloses a method of preparing EuB6 nano cubic crystal at low temperature. A liquid plasma technique and a solvothermal method are combined to successfully synthesize the EuB6 nano cubic crystal at the temperature of less than 100 DEG C. Compared with amikacin and kanamycin, the EuB6 nano cubic crystal has high antibacterial activity against particularly staphylococcus aureus. Compared with EuB6 nano cubic crystal prepared at high temperature, the EuB6 nano cubic crystal prepared at the low temperature has larger specific surface area and better antibacterial effect. It is expected that the EuB6 nano cubic crystal is applicable to medical instrument coatings, direct therapy of wounds or burns and the like.

Description

technical field [0001] The invention relates to a low-temperature preparation of EuB 6 The method for nano cube crystal belongs to the technical field of advanced nano crystal preparation. Background technique [0002] In recent years, due to EuB 6 The unique properties of alloy crystals, such as high brightness, good thermal stability, low volatility, and high mechanical strength, make them widely potential applications in thermionic electron emitters, thus attracting extensive research on them. However, to date, EuB 6 Alloy crystals are synthesized under harsh high-temperature sintering reaction conditions up to several hundred degrees Celsius, which makes the entire preparation process energy-consuming and not green. Therefore, it is very necessary to find a low-temperature preparation of EuB 6 Alloy crystal method. [0003] Liquid phase plasma technology (SPP, solution plasma process), that is, the introduction of plasma in a solution environment, has been proven to...

Claims

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Application Information

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IPC IPC(8): C01B35/04B82Y40/00
CPCB82Y40/00C01B35/04C01P2002/72C01P2002/85C01P2004/04
Inventor 童东革王涛向德力吴平唐冬梅
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
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