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Method for preparing 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 the problems of restricted application and low output, and achieve the effects of improving service life, improving effect, and increasing reactive sites

Active Publication Date: 2014-03-19
NANKAI UNIV
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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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  • Method for preparing graphite felt cathode material for treating organic wastewater
  • Method for preparing graphite felt cathode material for treating organic wastewater
  • Method for preparing graphite felt cathode material for treating organic wastewater

Examples

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Embodiment Construction

[0013] The present invention is further described in detail through the following embodiments in conjunction with the accompanying drawings.

[0014] (1) Preparation method of graphite felt cathode material

[0015] Add 0.3 g of carbon black powder and polytetrafluoroethylene into deionized water in a ratio of 1:5, then add 1 ml of isopropanol, and ultrasonically mix the solution for 10 minutes. 20cm of commercial graphite felt material after degreasing and cleaning 2 Immerse in the mixed solution of carbon black powder and polytetrafluoroethylene, sonicate for 0.5h at a constant temperature of 40°C, take out the graphite felt material and place it in a muffle furnace for annealing at 360°C for 1 hour to obtain the prepared graphite felt cathode material.

[0016] (2) Effects obtained by this embodiment

[0017] The SEM image of the graphite felt material obtained in this example is as follows figure 1 a, as a control, the SEM image of the commercial graphite felt material ...

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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 has been commercialized, simple and easy to obtain, and has a good practical application prospect. Many studies on the electrochemical advanced oxidation of organic matter in wastewater use graphite felt materials as electrocatalytic cathode materials. Among them, electro-Fenton technology is widely used as an efficient and clean advanced oxidation technology. It is based on the reduction of molecular oxygen to hydrogen peroxide (H2O) at the cathode. 2 O 2 ), and reacts with the added ferrous ions to generate strong oxidizing hydroxyl radicals ( OH), thereby realizing the oxidative degradation of ...

Claims

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Application Information

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