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Polypyrrole wood foam for solar landfill leachate treatment and preparation method of polypyrrole wood foam

A technology of landfill leachate and polypyrrole, which is applied in the direction of contaminated groundwater/leachate treatment, water/sewage treatment, chemical instruments and methods, etc., can solve the problems of high cost, high cost and easy pollution of the environment of solar drives, etc. Achieve the effect of reducing production cost and production difficulty, and good processing effect

Pending Publication Date: 2022-04-08
NANJING UNIV OF INFORMATION SCI & TECH
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cost of these synthetic materials is high, and the acquisition is not convenient enough, and they are easy to pollute the environment, which makes their development restricted to varying degrees.
In addition to synthetic materials, energy storage carbon composites have also been developed for solar steam generation, including: synthetic and natural graphite, graphite fibers, graphite foams, expanded graphite, graphite nanoplates, graphene, carbon nanotubes, and amorphous Carbon, due to its broadband and high-efficiency light absorption characteristics, has been widely studied, but most of these materials cannot be used alone. In addition, the cost of making solar drives with these carbon materials is relatively high, and the materials are inconvenient, and have not been practically applied.

Method used

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  • Polypyrrole wood foam for solar landfill leachate treatment and preparation method of polypyrrole wood foam
  • Polypyrrole wood foam for solar landfill leachate treatment and preparation method of polypyrrole wood foam
  • Polypyrrole wood foam for solar landfill leachate treatment and preparation method of polypyrrole wood foam

Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0036] The preparation method of polypyrrole wood foam is as follows:

[0037] (1) raw material grinding: the raw material used in the present invention is woody wood flour. Pour it into clean water for heating and stirring, and then perform mechanical wet grinding again, so that the diameter of the wood particles is close to the nanometer level.

[0038] (2) In situ polymerization: the K 2 S 2 o 8 Pour the solution into the woody suspension, heat and stir in a water bath for 2 hours, then lower the temperature of the water bath to about 10°C, continue to stir and cool down for 30 minutes, then slowly inject the pyrrole solution into the woody suspension under stirring, and continue stirring 2h, and then stand still for 6h, so that the pyrrole is fully polymerized on the wood in situ, and the wood turns black.

[0039] (3) Foam forming: Take 20ml of the suspension prepared in (2) and put it into a 50ml round-bottomed plastic centrifuge tube, use temperature gradient adjust...

Embodiment example 2

[0042] The difference between this implementation case and the first implementation case lies in step (2).

[0043] The quality of pyrrole in the implementation case 1 accounts for 7% of the wood quality. In this implementation case, the quality of pyrrole added accounts for 20%, 15%, 10%, 5% and 2% of the wood quality respectively, and the solid content of wood remains at 13%. The rest of the preparation scheme remains unchanged, and the experimental sequence with pyrrole mass as the variable is formed to carry out the indoor solar landfill leachate treatment experiment.

Embodiment example 3

[0045] The difference between this implementation case and the first implementation case lies in step (3).

[0046]In this implementation case, put 20ml of the prepared suspension into a 50ml round-bottomed plastic centrifuge tube, seal the mouth of the centrifuge tube with plastic wrap, turn the centrifuge tube upside down, gently tap all the suspension into the bottom, and the rest of the steps Same as Example 1, a 3D structure of a cylinder with a flat top can be prepared for indoor solar landfill leachate treatment experiments.

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Abstract

The invention discloses polypyrrole wood foam for treating landfill leachate by utilizing solar energy and a preparation method of the polypyrrole wood foam, and relates to the field of organic polymer materials, the polypyrrole wood foam is used for treating the solar landfill leachate, the whole body of the polypyrrole wood foam is black, and the polypyrrole wood foam has a directional capillary structure and capillary holes, can realize integration of photothermal conversion and moisture transportation, and can be used for treating the landfill leachate by utilizing solar energy. And substances in the water body are selective, so that the garbage leachate is purified. According to the invention, the wood is used as a main raw material, and nontoxic and harmless pyrrole is used for carrying out in-situ polymerization on the wood, so that the prepared polypyrrole wood foam has better mechanical property and photo-thermal conversion property, the preparation method is simple and convenient, the materials are convenient to take, the control is easy, and the cost is low.

Description

technical field [0001] The invention relates to the field of organic polymer materials, in particular to a polypyrrole wood foam treated with solar landfill leachate and a preparation method thereof. Background technique [0002] The amount of water resources on the earth occupies 71% of the earth's area. The natural evaporation of rivers, oceans, lakes and the transpiration of plants provide a large amount of fresh water resources to the world, but only a small part is available for human consumption and use. Water is a renewable resource. With the continuous economic development and population increase in various countries in the world, the pollution of fresh water resources is becoming more and more serious, but its supply is far from meeting the demand. Water scarcity is one of the most serious global challenges facing mankind. In order to solve this problem, various water purification treatment technologies are emerging. In the process of continuous development of tec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/28C08G73/06C08L97/02C08L79/04C02F1/14C02F103/06
CPCY02A20/212
Inventor 刘大刚彭晋南
Owner NANJING UNIV OF INFORMATION SCI & TECH
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