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Organic material, BDI system and method for removing metal ions in water body

A technology of organic materials and metal ions, which is applied in the field of electrochemistry, can solve the problems of low removal capacity and singleness of ion removal, and achieve the effect of facilitating solution infiltration, low price and easy realization

Pending Publication Date: 2020-09-01
SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the lack of low metal ion removal capacity and singleness of ion removal in the prior art, the object of the present invention is to provide an organic material, a BDI system and the removal of metal ions in water, the organic material is an organic material with a redox functional group Polymer materials, due to their non-rigid structure, are not limited by non-ion selection, can undergo reversible electrochemical redox reactions in different metal ion systems, and can coordinate with metal ions in solution to form complexes In order to achieve the purpose of removing metal ions; the organic material is used in the electrochemical metal ion removal system, which can effectively remove various metal ions in the water source, has a high removal capacity, and can be recycled. The BDI system It mainly includes a polymer working electrode for metal ion removal and a counter electrode for anion removal. The BDI system can be widely used in seawater desalination, sewage and wastewater metal ion removal and other fields, so it has broad application prospects

Method used

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  • Organic material, BDI system and method for removing metal ions in water body
  • Organic material, BDI system and method for removing metal ions in water body
  • Organic material, BDI system and method for removing metal ions in water body

Examples

Experimental program
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Effect test

Embodiment 1

[0058] This example provides a method for preparing a polymer quinone active material, comprising: weighing 2,4-dichloroanthraquinone and sodium sulfide in a glove box at a molar ratio of 1:1, and adding them to a 100 mL glass container; Then add 30 mL volume of reaction medium solvent dimethylformamide, react at 200°C for 6 hours, cool to room temperature, filter the product, wash with deionized water and ethanol until it is colorless, and dry to obtain polymer quinone materials.

[0059] figure 1 For the scanning electron micrograph (ZeissMerlin) of the polymer quinone active material that this embodiment obtains, from figure 1 It can be seen that the polymer quinone material has a porous structure.

[0060] figure 2 The nitrogen adsorption-desorption curve figure of the polymer quinone active material that this embodiment obtains, from figure 2 It can be seen that the polymer quinone material has a porous structure.

[0061] This embodiment provides a method for prepa...

Embodiment 2

[0071] This example provides a method for preparing polymer quinone active materials, comprising: weighing 2,4-dichloroanthraquinone and sodium sulfide nonahydrate in a glove box according to a molar ratio of 1:1, and adding them to a 100mL glass container Then add 30mL of reaction medium solvent dimethylformamide, react at 230°C for 4h, cool to room temperature, filter the product, wash with deionized water and ethanol until colorless, and dry to obtain a polymer quinone material.

[0072] Scanning electron microscopy and nitrogen adsorption-desorption tests were performed on the polymer quinone active material obtained in this example, and it can be seen that the polymer quinone active material obtained in this example has a porous structure.

[0073] This embodiment provides a method for preparing an electrode sheet, comprising the following steps:

[0074] A1. Take the polymer quinone material prepared above as the electrode activity 5: 3: 2. Weigh the polymer quinone mate...

Embodiment 3

[0082] This example provides a preparation method for polymer quinone active materials, comprising: weighing 1,5-dichloroanthraquinone and sodium sulfide nonahydrate in a glove box according to a molar ratio of 1:3, and adding them to a 100mL glass container Then add 30mL volume of reaction medium solvent dimethylformamide, react at 180°C for 8h, cool to room temperature, filter the product, wash with deionized water and ethanol until it is colorless, and dry to obtain a polymer quinone material.

[0083] Scanning electron microscopy and nitrogen adsorption-desorption tests were performed on the polymer quinone active material obtained in this example. It can be known that the polymer quinone active material obtained in this example has a porous structure.

[0084]This embodiment provides a method for preparing an electrode sheet, comprising the following steps:

[0085] A1. Take the polymer quinone material prepared above as the electrode active material, weigh the polymer qu...

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Abstract

The invention provides an organic material, a BDI system and a method for removing metal ions in a water body, and the preparation method of the organic material for removing metal ions comprises thefollowing steps: putting quinones monomers and sulfides into a solvent for reaction to obtain the organic material; the organic material is an organic polymer material with a redox functional group. Due to the non-rigid structure, the composite material is not limited by non-ion selection, reversible electrochemical oxidation-reduction reaction can occur in different metal ion systems, and the composite material can be coordinated with metal ions in a solution to form a complex, so that the purpose of removing the metal ions is achieved; when the organic material is used in an electrochemicalcell ion removal (BDI) system, metal ions in a water body can be effectively removed, and the organic material has relatively high removal capacity and can be recycled; the BDI system can be widely applied to the fields of sea water desalination, sewage and wastewater metal ion removal and the like, so that the BDI system has a wide application prospect.

Description

technical field [0001] The invention belongs to the field of electrochemistry, and relates to an organic material, a BDI system and its use in the removal of metal ions in water bodies, in particular to an organic material and its preparation method, a BDI system including organic materials and its application in the removal of metal ions in water bodies ; It further relates to the application of an organic polymer material, an electrode slurry, an electrode sheet and an electrochemical metal ion removal system in seawater and wastewater metal ion removal systems. Background technique [0002] Water is the basic substance that human beings depend on for survival. With the rapid development of my country's economy, the shortage of fresh water resources and water pollution caused by heavy metals have gradually become prominent. Ion removal of seawater and heavy metal sewage through appropriate technical methods can effectively solve the shortage of fresh water resources and he...

Claims

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Application Information

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IPC IPC(8): C08G75/0254C02F1/46C02F1/469
CPCC08G75/0254C02F1/46C02F1/469
Inventor 陈洪卫文飞
Owner SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA