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Preparation method of hybrid nano film

A nanobelt and thin film technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of inability to widely use adsorbents, lack of active points of adsorbents, difficult to reuse, etc., and achieve good application prospects and low prices. , the effect of high adsorption performance

Inactive Publication Date: 2013-08-07
DONGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When these materials are used for the adsorption of heavy metal ions, they must be modified by some organic functional groups, such as -SH, -OH, -COOH, -NH 2 etc., the method is cumbersome, and the adsorbent lacks active points so that the adsorption efficiency is not high. In use, it cannot be widely used as an adsorbent for various purposes due to the constraints of high temperature resistance and difficulty in repeated use.

Method used

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  • Preparation method of hybrid nano film
  • Preparation method of hybrid nano film
  • Preparation method of hybrid nano film

Examples

Experimental program
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Effect test

Embodiment 1

[0021] (1) Weigh germanium dioxide and zinc acetate dihydrate, dissolve in deionized water, add ethylenediamine under the condition of magnetic stirring, the volume ratio of deionized water and anhydrous ethylenediamine is 1:2, The molar ratio of germanium to zinc acetate dihydrate was 1:1, and the white solution formed after stirring for half an hour was transferred to a high-pressure reactor, and reacted under hydrothermal conditions at 180°C for 24 hours, and then cooled the reactor to room temperature.

[0022] (2) The microscopic morphology of the obtained white product is Zn 2 GeO 4 -Ethylenediamine ultra-long nanoribbons (such as figure 1 ), the Zn 2 GeO 4 - Ethylenediamine nanobelts were placed in ethanol, dispersed evenly by ultrasonic waves, and the ethanol and Zn were removed by thermal evaporation at 60°C 2 GeO 4 - Ethylenediamine nanoribbons self-assemble into thin films with uniform thickness in the vessel.

[0023] (3) Zn 2 GeO 4 - Ethylenediamine hybri...

Embodiment 2

[0026] (1) Weigh germanium dioxide and zinc acetate dihydrate, dissolve in deionized water, add ethylenediamine under the condition of magnetic stirring, the volume ratio of deionized water and anhydrous ethylenediamine is 1: 3, The molar ratio of germanium to zinc acetate dihydrate was 1:2, and the white solution formed after stirring for one hour was transferred to a high-pressure reactor, and reacted under hydrothermal conditions at 190°C for 16 hours, and then cooled the reactor to room temperature.

[0027] (2) The microscopic morphology of the obtained white product is Zn 2 GeO 4 - Ethylenediamine ultra-long nanobelts, the Zn 2 GeO 4 - Ethylenediamine nanobelts were placed in ethanol, dispersed evenly by ultrasonic waves, and the ethanol and Zn were removed by thermal evaporation at 60°C 2 GeO 4 - Ethylenediamine nanoribbons self-assemble into thin films with uniform thickness in the vessel.

[0028] (3) Zn 2 GeO 4 -Ethylenediamine hybrid nanobelt film is placed i...

Embodiment 3

[0031] (1) Weigh germanium dioxide and zinc acetate dihydrate, dissolve in deionized water, add ethylenediamine under the condition of magnetic stirring, the volume ratio of deionized water and anhydrous ethylenediamine is 1: 2.5, The molar ratio of germanium to zinc acetate dihydrate was 1:1.5, and the white solution formed after stirring for half an hour was transferred to a high-pressure reactor, and reacted under hydrothermal conditions at 200°C for 36 hours, and then cooled the reactor to room temperature.

[0032] (2) The microscopic morphology of the obtained white product is Zn 2 GeO 4 - Ethylenediamine ultra-long nanobelts, the Zn 2 GeO 4 -Ethylenediamine nanobelts were placed in acetone, dispersed evenly by ultrasonic waves, and acetone and Zn were removed at 60°C by thermal evaporation 2 GeO 4 - Ethylenediamine nanoribbons self-assemble into thin films with uniform thickness in the vessel.

[0033] (3) Zn 2 GeO 4 -Ethylenediamine hybrid nanobelt film is place...

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Abstract

The invention relates to a preparation method of a hybrid nano film. The method comprises steps of: (1) dissolving germanium dioxide and zinc acetate dihydrate in a mixed solvent of deionized water and anhydrous ethylenediamine, stirring and transferring the solution into a reaction kettle, cooling to a room temperature to obtain a Zn2GeO4-ethene diamine nanoribbon. (2) placing the Zn2GeO4-ethenediamine nanoribbon into a dispersant, dispersing uniformly by ultrasonic, removing the dispersant by a heat evaporation method and carrying out a self assembly of the Zn2GeO4-ethene diamine nanoribbon to form a film with uniform thickness. The preparation method of the invention has characteristics of environment friendliness, cheap and easily available raw material, low toxicity, low price and simple operation process, etc. The prepared film has high adsorption performance on heavy metal ions in sewage, can be reused by washing and is environment-friendly, practical and with promising application prospect.

Description

technical field [0001] The invention belongs to the field of nanobelt films, in particular to a method for preparing a hybrid nanobelt film. Background technique [0002] Heavy metal ions in water pose a great threat to human life and health. With the development of industry, the metallurgy, leather industry, mining and battery industries are causing heavy metal pollution to the environment. Environmental protection and governance have become an indispensable part of modern industrial production. It is very necessary to prepare an environmentally friendly film material that has a high adsorption rate for various heavy metal ions and can be reused. [0003] At present, thin-film adsorbents are generally made of raw materials such as mesoporous materials or organic polymers. When these materials are used for the adsorption of heavy metal ions, they must be modified by some organic functional groups, such as -SH, -OH, -COOH, -NH 2 etc., the method is cumbersome, and the adso...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/22
Inventor 胡俊青余利张震宇邹儒佳宋国胜
Owner DONGHUA UNIV