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A kind of porous carbon electrode based on metal organic framework material and its preparation method

A metal-organic framework and porous carbon electrode technology, applied in the direction of electrode shape/type, can solve problems such as no literature reports, achieve good regeneration, increase capacitive deionization rate, and large specific surface area

Active Publication Date: 2018-03-30
JILIN NORMAL UNIV
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Problems solved by technology

However, there is no literature report on the carbonization of metal-organic framework materials to prepare porous carbon as a CDI electrode material.

Method used

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  • A kind of porous carbon electrode based on metal organic framework material and its preparation method
  • A kind of porous carbon electrode based on metal organic framework material and its preparation method
  • A kind of porous carbon electrode based on metal organic framework material and its preparation method

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preparation example Construction

[0027] 1. Preparation of activated carbon electrode:

[0028] In order to facilitate the comparison of the products of the present invention, we have prepared activated carbon electrodes, and the specific preparation method is as follows:

[0029] (1) Wash the activated carbon repeatedly with deionized water and suction filter until the conductivity is less than 10us / cm, and dry it in an oven at 100°C for 1 hour to obtain the cleaned activated carbon, as attached figure 1 (a).

[0030] (2) Mix the aqueous solutions of 2.0% acrylic acid, 0.3% methyl acrylate and 0.0125% azobisisobutyronitrile evenly, place them in a constant temperature water bath at 60°C, and rotate at 150r / min Constant temperature mechanical stirring for 4 hours to obtain the primary colloid, the primary colloid was taken out of the constant temperature water bath, naturally cooled to room temperature, then added tetraethylene glycol with a mass concentration of 0.7%, and stirred evenly with a glass rod to o...

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Abstract

The invention discloses a novel porous carbon electrode based on a metal organic framework material and a preparation method thereof, belonging to the application field of water treatment technology. The porous carbon electrode is obtained by first calcining the metal-organic framework material at high temperature in a vacuum state to obtain porous carbon, then uniformly mixing the porous carbon with the binder, spreading it on graphite paper, drying, and finally carbonizing the binder. have to. Compared with ordinary activated carbon electrodes, the obtained porous carbon electrodes have large specific surface area, good hydrophilicity, high salt removal rate in the process of capacitive deionization, and excellent regeneration performance, which is a promising electrode suitable for capacitive deionization. technical electrodes.

Description

technical field [0001] The invention relates to a novel porous carbon electrode based on a metal-organic framework material and a preparation method thereof. The electrode is mainly used in the capacitive deionization and desalination process, and belongs to the application field of water treatment technology, in particular to the technical field of salt water desalination. Background technique [0002] While the economy continues to develop at a high speed, our country is facing a serious shortage of fresh water resources. In order to meet the demand for pure water, people began to desalinate salt water. Traditional desalination methods that can be used for desalination of salt water mainly include distillation, ion exchange, electrodialysis, reverse osmosis, etc. However, these traditional methods have their own shortcomings. Distillation requires long-term heating and high energy consumption; ion exchange resin regeneration requires a large amount of strong acid and stro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25B11/03
Inventor 常立民段小月刘伟张兴晶周莹赵媛媛李佳润
Owner JILIN NORMAL UNIV
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