Conductive polymer-supporter composite material, preparation method and applications

A conductive polymer and composite material technology, applied in the field of conductive polymer materials, can solve the problems affecting the efficiency of adsorption and reduction of metal ions, adhesion, etc., and achieve the effect of enrichment and reduction without energy consumption, increasing the specific surface area, and avoiding agglomeration

Inactive Publication Date: 2015-05-20
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, such conductive polymers often have agglomeration and adhesion, which affects their actual adsorption and reduction efficiency of metal ions.

Method used

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  • Conductive polymer-supporter composite material, preparation method and applications
  • Conductive polymer-supporter composite material, preparation method and applications
  • Conductive polymer-supporter composite material, preparation method and applications

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] In this embodiment, the conductive polymer-support composite material is composed of polyaniline and support material, polyaniline uses the support material as a carrier, and is dispersed on the surface of the support material, and the support material is sackcloth, forming polyaniline- Support composites.

[0048] The preparation method of this polyaniline-support body composite material is as follows:

[0049] (1) Dissolve 4.56g of ammonium persulfate in 80ml of 1M dilute hydrochloric acid solution, and refrigerate in an ice-water bath at 0°C for later use;

[0050] (2) Disperse 1ml of aniline monomer in 320ml of dilute hydrochloric acid solution with a concentration of 1M in an ice-water bath at 0°C and stir vigorously;

[0051] (3) Slowly add the dilute ammonium persulfate hydrochloric acid solution prepared in step (1) dropwise into the dilute aniline-hydrochloric acid solution obtained in step (2), stir at 0°C for one hour, then continue to stir and react for 24 ...

Embodiment 2

[0068] In this embodiment, the conductive polymer-support composite material is composed of polyaniline and support material. The polyaniline uses the support material as a carrier and is dispersed on the surface of the support material. The support material is cotton yarn, forming the polyaniline-support material. body composites.

[0069] The preparation method of the polyaniline-support composite material is basically the same as that in Example 1, except that cotton yarn is used instead of sackcloth as the support.

[0070] The polyaniline-support composite material obtained above can adsorb metal ions (such as gold, silver, platinum, palladium, mercury, copper, tin, hexavalent chromium, etc.) that can undergo electrochemical reduction reactions in acidic solutions, and will It is reduced to metal adsorption on the surface. Therefore, the polyaniline-support composite material can be used to recover these metal elements contained in waste. In order to verify this use, th...

Embodiment 3

[0074] In this embodiment, the conductive polymer-support composite material is composed of polyaniline and support material, polyaniline uses the support material as a carrier, and is dispersed on the surface of the support material, and the support material is sawdust, forming the polyaniline-support material. body composites.

[0075] The preparation method of the polyaniline-support composite material is basically the same as that in Example 1, except that sawdust is used instead of sackcloth as the support.

[0076] The polyaniline-support composite material obtained above can adsorb metal ions (such as gold, silver, platinum, palladium, mercury, copper, tin, hexavalent chromium, etc.) that can undergo electrochemical reduction reactions in acidic solutions, and will It is reduced to metal adsorption on the surface. Therefore, the polyaniline-support composite material can be used to recover these metal elements contained in waste. In order to verify this use, the follo...

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Abstract

The invention provides a conductive polymer-supporter composite material, which is composed of a conductive polymer material and a supporter material, wherein the supporter material is taken as the carrier, and the conductive polymer material is dispersed on the surface of the supporter material. The conductive polymer material can be one of polyaniline, polypyrrole, polythiophene, and ring/heteroatom substituted derivatives thereof. The composite material has a high specific surface area, can effectively avoid the agglomeration and adhesion among conductive polymer materials (polyaniline, polypyrrole, polythiophene, and the like), and has a high adsorption and reduction performance on recycling metal elements in wastes, and the metal recovery efficiency is effectively increased.

Description

technical field [0001] The invention belongs to the technical field of conductive polymer materials and the technical field of electronic waste recycling and processing, and specifically relates to a conductive polymer-support composite material, its preparation method and its use in waste recycling and processing. Background technique [0002] Many wastes are rich in precious metals and rare metals such as gold, silver, palladium, platinum, etc. For example, the grade of metal contained in electronic waste, especially waste printed circuit boards, is dozens of times that of ordinary primary ore. Therefore, the recycling of metal resources in waste has become a sunrise industry in the metal recycling industry at home and abroad. [0003] At present, the most widely used method of recycling metal resources in waste is the combination of physical and chemical methods, among which hydrometallurgical technology is mostly used in chemical methods. Specifically, the broken waste ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/02C08L79/02C08L1/02C08L97/02C08G73/06C08L79/04C08G61/12C08L65/00C22B7/00
CPCY02P10/20
Inventor 刘钢李润伟巫远招潘亮张文斌
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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