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A preparation method of graphite felt cathode material for treating organic wastewater

A cathode material and organic wastewater technology, which is applied in the field of preparation of electrocatalytic electrode materials, can solve problems such as low output and restricted application, and achieve the effects of improving the effect, increasing the service life, and increasing the specific surface area

Active Publication Date: 2015-08-05
NANKAI UNIV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, commercial graphite felt cathode materials electrocatalytically produce H 2 o 2 The yield is not high, which restricts its application in the electro-Fenton system

Method used

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  • A preparation method of graphite felt cathode material for treating organic wastewater
  • A preparation method of graphite felt cathode material for treating organic wastewater
  • A preparation method of graphite felt cathode material for treating organic wastewater

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Effect test

Embodiment Construction

[0012] The present invention is further described in detail through the following embodiments in conjunction with the accompanying drawings.

[0013] (1) Preparation method of graphite felt cathode material

[0014] Mix 0.3 g of carbon black powder and polytetrafluoroethylene at a ratio of 1:5 and add to deionized water, then add 1 ml of isopropanol, and ultrasonically mix the solution for 10 min. 20cm of commercialized graphite felt material that will be degreased and cleaned 2 Immerse in a mixed solution of carbon black powder and polytetrafluoroethylene, sonicate at a constant temperature of 40°C for 0.5h, take out the graphite felt material and place it in a muffle furnace for annealing at 360°C for 1h to obtain the prepared graphite felt cathode material.

[0015] (2) The effect obtained by this embodiment

[0016] The SEM figure of the graphite felt material that this embodiment obtains is as figure 1 As shown in a, as a comparison, the SEM image of commercial graphit...

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Abstract

The invention relates to a method for preparing a graphite felt cathode material for treating organic wastewater. According to the method, the preparation of the graphite felt cathode material can be realized through soaking a graphite felt material in a mixed solution of carbon black powder and polytetrafluoroethylene which are mixed according to a certain ratio, treating by ultrasound, and then, annealing at a relatively low annealing temperature. By applying the material to an electro-Fenton cathode, the electrocatalytic oxygen reduction activity of the cathode can be effectively enhanced, and the generation of H2O2 is promoted, so that the organic pollutant treatment capability of an electro-Fenton system is effectively improved. The outstanding characteristics are as follows: the method for preparing the graphite felt cathode material is simple and has relatively low requirements on equipment, the yield of H2O2 can be increased remarkably, and the cathode material has long service life and has a relatively good application prospect.

Description

technical field [0001] The invention belongs to the field of preparation of electrocatalytic electrode materials, and relates to a preparation method of a graphite felt cathode material which can be used for treating organic waste water. Background technique [0002] Graphite felt material is an electrode material with large specific surface area and good mechanical strength, and it has been commercialized, easy to obtain, and has a good practical application prospect. Many studies on electrochemical advanced oxidation treatment of organic matter in sewage use graphite felt materials as electrocatalytic cathode materials. Among them, electro-Fenton technology is widely used as an efficient and clean advanced oxidation technology, which is based on the reduction of molecular oxygen to hydrogen peroxide (H 2 o 2 ), and react with external ferrous ions to generate strong oxidizing hydroxyl radicals (·OH), thereby realizing the oxidative degradation of pollutants. [0003] In...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/467
Inventor 周明华余方可
Owner NANKAI UNIV
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