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Bionic structure green bristlegrass-shaped metal oxide nano material and preparation method thereof

A nanomaterial and oxide technology, applied in the directions of alkali metal oxides/hydroxides, alkali metal compounds, chemical instruments and methods, etc., can solve the problems of difficulty in recycling, secondary pollution, hindering large-scale application, etc. Large surface area, the effect of improving adsorption performance

Active Publication Date: 2022-06-10
安徽芈源环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Magnesium oxide is a commonly used adsorption material. At present, porous nano-adsorption materials such as flakes and flowers have been prepared in the field. Although they have strong adsorption capacity, they are difficult to recycle and use directly in wastewater treatment. It is easy to cause secondary pollution and other problems, which seriously hinders its large-scale application

Method used

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  • Bionic structure green bristlegrass-shaped metal oxide nano material and preparation method thereof
  • Bionic structure green bristlegrass-shaped metal oxide nano material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Dissolve 14.83g of magnesium nitrate, 0.48g of zinc acetate and 18.49g of urea in deionized water, then add 6.28g of oxidized glutathione, stir and mix to obtain a reaction solution.

[0032] (2) Transfer the reaction solution to a hydrothermal reaction kettle for hydrothermal reaction, the temperature of the hydrothermal reaction is 180°C, and the hydrothermal reaction time is 10h, a precipitate is formed in the reaction solution, the reaction is completed, the reaction solution is suction filtered, and the precipitate is washed , and dried to obtain the precursor.

[0033] (3) calcining the precursor under the protection of an inert gas or under a vacuum condition, the calcination temperature is 400° C., and the calcination time is 2 h to obtain a foxtail-like metal oxide nanomaterial.

Embodiment 2

[0035] (1) Dissolve 14.83 g of magnesium nitrate, 0.50 g of titanium chloride and 18.50 g of urea in deionized water, then add 6.29 g of oxidized glutathione, stir and mix to obtain a reaction solution.

[0036] (2) Transfer the reaction solution to a hydrothermal reactor for hydrothermal reaction, the hydrothermal reaction temperature is 150°C, and the hydrothermal reaction time is 12h, a precipitate is formed in the reaction solution, the reaction is completed, the reaction solution is suction filtered, and the precipitate is washed , and dried to obtain the precursor.

[0037] (3) calcining the precursor under the protection of an inert gas or under a vacuum condition at a calcination temperature of 350° C. and a calcination time of 3 h to obtain a foxtail-like metal oxide nanomaterial.

Embodiment 3

[0039] (1) Dissolve 14.83g of magnesium nitrate, 0.5g of zinc acetate, 0.53g of titanium chloride and 25.36g of urea in deionized water, then add 6.47g of oxidized glutathione, stir and mix to obtain a reaction solution.

[0040] (2) Transfer the reaction solution to a hydrothermal reactor for hydrothermal reaction, the temperature of the hydrothermal reaction is 200°C, and the time of the hydrothermal reaction is 8h, a precipitate is formed in the reaction solution, the reaction is completed, the reaction solution is suction filtered, and the precipitate is washed , and dried to obtain the precursor.

[0041] (3) calcining the precursor under the protection of an inert gas or under a vacuum condition at a calcination temperature of 300° C. and a calcination time of 4 h to obtain a foxtail-like metal oxide nanomaterial.

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Abstract

The invention discloses a setaria viridis-shaped metal oxide nanometer material with a bionic structure and a preparation method thereof, and relates to the technical field of nanometer adsorption materials, the nanometer material is setaria viridis-shaped nanocrystalline of metal oxide, the metal oxide comprises at least two of MgO, ZnO and TiO2, and the mass percentage of MgO is 85-95%; when the prepared bionic-structure green bristlegrass-shaped metal oxide nano material is applied to heavy metal wastewater treatment, the saturated adsorption capacities of lead ions, cadmium ions and mercury ions in wastewater can reach 800 mg / g, 700 mg / g and 600 mg / g or above respectively.

Description

Technical field: [0001] The invention relates to the technical field of nano-adsorption materials, in particular to a biomimetic structure foxtail-like metal oxide nano-material and a preparation method thereof. Background technique: [0002] Heavy metal pollution mainly comes from mining, non-ferrous metal smelting, mechanical processing, chemical industry, industrial wastewater, and domestic wastewater. At present, the treatment methods of heavy metal wastewater mainly include: chemical precipitation method, ion exchange method, membrane separation method, electrochemical method and adsorption method. Among them, the adsorption method is an economical, efficient and most valuable heavy metal wastewater treatment technology due to its simple operation, low cost and wide application range. [0003] The key to the treatment of heavy metal wastewater by adsorption is the performance of the adsorption material. Among many adsorbent materials, adsorbent materials with low pric...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/04B01J20/28B01J20/30B82Y30/00B82Y40/00C02F1/28C02F101/20
CPCB01J20/041B01J20/0244B01J20/0211B01J20/28007B01J20/28066B01J20/28014C02F1/281B82Y30/00B82Y40/00C02F2101/20
Inventor 金震张磊桂阳
Owner 安徽芈源环保科技有限公司
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