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Preparation method of germanium selenide nano material and application of germanium selenide nano material

A nanomaterial, germanium selenide technology, applied in chemical instruments and methods, nanotechnology, nanotechnology and other directions, can solve the problems of unsuitable industrial production, troublesome preparation methods, etc., and achieve the advantages of enrichment and conversion, excellent piezoelectricity Performance, good response to ultrasonic vibration effect

Pending Publication Date: 2022-01-04
广东宜纳新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, Professor Yang's research shows that germanium selenide has high piezoelectric properties, GeSe:d11=212.13pm / V (Appl. Wastewater degradation has bright prospects, but the existing preparation methods of germanium selenide nanomaterials are cumbersome to operate and are not suitable for industrial production

Method used

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  • Preparation method of germanium selenide nano material and application of germanium selenide nano material
  • Preparation method of germanium selenide nano material and application of germanium selenide nano material
  • Preparation method of germanium selenide nano material and application of germanium selenide nano material

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Embodiment 1

[0041] This embodiment provides a method for preparing germanium selenide nanoparticles, comprising the following steps:

[0042] 0.4g GeI 4 Add 20mL oleylamine (OLA) into a 25mL three-necked flask in air, and magnetically stir at a speed of 250r / min, then vacuumize to -0.2MPa, and heat to 120°C for 30min;

[0043] Then inject 120 μL of selenourea, and the reaction mixture was heated at 240 °C under N 2 Flow down and reflux for 12 hours, cool to room temperature, wash with acetone, alcohol and deionized water in sequence, and dry to obtain germanium selenide nanoparticles, the thickness of the germanium selenide nanoparticles is 1-2 μm.

Embodiment 2

[0045] This embodiment provides a method for preparing germanium selenide nanosheets, comprising the following steps:

[0046]Grinding the germanium selenide nanoparticle material into a powder and passing through a 600-mesh sieve, adding it to ethanol for ultrasonication in an ice bath for 2 hours, centrifuging the obtained product at 8,000 rpm for 2 minutes, and drying by centrifugation to obtain germanium selenide nanosheets. The germanium selenide nanosheets have a length of 300-900 nm, which can be 300 nm, 500 nm, 700 nm, 800 nm, or 900 nm according to specific implementation conditions.

[0047] The germanium selenide nanoparticle and the germanium selenide nanosheet in embodiment 1 and embodiment 2 are carried out scanning electron microscope (SEM) analysis, as figure 1 and figure 2 As shown, it can be seen that the germanium selenide obtained in embodiment 1 is granular, and the germanium selenide obtained in embodiment 2 is flake.

[0048] Among the present inventi...

Embodiment 3

[0051] Put 50mg of germanium selenide nanoparticles in Example 1 into 100mL of deionized water containing 0.005mol / L of antibiotics, magnetically stir under dark conditions to reach adsorption-desorption equilibrium, and add 45kHz, 100W ultrasonic waves, respectively, for 0h , 1h, 2h, 3h, 4h and 5h, and a high-performance liquid chromatography (HPLC) with a UV detector was used to determine the concentration of antibiotics.

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Abstract

The invention discloses a preparation method of a germanium selenide nano material and application of the germanium selenide nano material. The preparation method of the germanium selenide nano material comprises the following steps of: mixing GeI4 and oleylamine, and sequentially carrying out magnetic stirring, vacuumizing, heating and heat preservation; and injecting selenourea into the mixture of GeI4 and oleylamine, refluxing the reaction mixture at a high temperature in an inert gas environment, cooling to room temperature, washing with acetone, alcohol and deionized water in sequence, and drying to obtain germanium selenide nanoparticles. According to the preparation method of the germanium selenide nano material, selenourea and GeI4 are subjected to a redox reaction in an oleylamine solvent at a high temperature to synthesize germanium selenide nano particles, the germanium selenide nano particles are cooled to room temperature, washed with acetone, alcohol and deionized water and dried to obtain the germanium selenide nano particle material, and the whole preparation method is simple to operate, environment-friendly, pollution-free and easy for industrial production. The germanium selenide nano material disclosed by the invention is applied to degradation of organic pollutants.

Description

technical field [0001] The invention relates to the technical field of new materials, in particular to a preparation method of a germanium selenide nanometer material and an application of the germanium selenide nanometer material. Background technique [0002] In recent years, with the development of industry, a large amount of waste water and other pollutants are increasing, and the quality of water, soil and air is gradually deteriorating, especially organic dyes that are difficult to degrade. There are tens of thousands of organic dyes, especially in antibiotics. Tetracyclines are refractory and persistent. If they are discharged without degradation, the dyes can enter the human body through other channels, eventually endangering human health and causing environmental pollution. At present, the methods for degrading organic dyes include: adsorption filtration method, photocatalysis method and so on. In order to meet people's urgent requirements for a green and environme...

Claims

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Application Information

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IPC IPC(8): B01J20/02B01J20/28B01J20/30C01B19/04B82Y30/00B82Y40/00B01J27/057B01J35/10C02F1/00C02F1/28C02F1/36C02F101/30C02F101/34C02F101/38
CPCB01J20/0262B01J20/28007B01J20/28011B01J20/3085C01B19/04B82Y30/00B82Y40/00B01J27/057C02F1/00C02F1/281C02F1/36C02F2305/10C02F2101/308C02F2101/38C02F2101/34B01J35/60
Inventor 赵志成李顺刘勇张双猛罗睿杰
Owner 广东宜纳新材料科技有限公司
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