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Active carbon fiber three-dimensional particle electrode catalyst and preparation method thereof

A technology of activated carbon fibers and particle electrodes, which is applied in the direction of catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc. It can solve the problems of high cost of diamond thin film electrodes, undiscovered, and low service life of tin dioxide electrodes. Achieve the effects of low production cost, high adsorption or desorption rate, and strong oxidation ability

Inactive Publication Date: 2018-06-29
山西晋环科源环境资源科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The service life of the tin dioxide electrode is low, lead ions may be introduced into the solution during the electrolysis process of the lead dioxide electrode, and the diamond film electrode is effective but the cost is too high
However, in the existing patents, no three-dimensional electrode reaction system using activated carbon fibers as particle electrodes has been found.

Method used

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  • Active carbon fiber three-dimensional particle electrode catalyst and preparation method thereof
  • Active carbon fiber three-dimensional particle electrode catalyst and preparation method thereof
  • Active carbon fiber three-dimensional particle electrode catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A three-dimensional electrode, the anode of the electrode is a ruthenium-titanium electrode, the cathode is a stainless steel electrode, and the particle electrode is located between the cathode and anode electrodes; the particle electrode uses activated activated carbon fibers as a carrier, and the carrier is loaded with Fe, Co, The four metals Mn and Sn correspond to catalysts in oxides.

[0033] The weight of the catalyst loaded on the activated activated carbon fiber is 1% of the activated carbon fiber.

[0034] The preparation method of the three-dimensional particle electrode loaded with catalyst activated carbon fiber includes the following steps.

[0035] 1) Fe, Co, Mn nitrate, SnCl 2 Dissolve in deionized water to obtain the corresponding impregnating solution, the concentration of metal cations in the impregnating solution is 0.5 mol / L.

[0036]2) Cut the activated carbon fiber into a sheet material with a size of 10 × 10 mm, wash it thoroughly with deionize...

Embodiment 2

[0041] A three-dimensional electrode, the anode of the electrode is a ruthenium-titanium electrode, the cathode is a stainless steel electrode, and the particle electrode is located between the cathode and anode electrodes; the particle electrode uses activated activated carbon fibers as a carrier, and the carrier is loaded with Fe, Co, The three metals of Mn correspond to catalysts in oxides.

[0042] The weight of the catalyst loaded on the activated activated carbon fiber was 9% of the activated carbon fiber.

[0043] The preparation method of the three-dimensional particle electrode loaded with catalyst activated carbon fiber includes the following steps.

[0044] 1) Dissolve the nitrates of Fe, Co, and Mn in deionized water first to obtain the corresponding impregnation solution. The concentration of metal cations in the impregnation solution is 1mol / L.

[0045] 2) Cut the activated carbon fibers into sheet-like materials with a size of 10 × 10 mm, wash them thoroughly w...

Embodiment 3

[0050] A three-dimensional electrode, the anode of the electrode is a ruthenium-titanium electrode, the cathode is a stainless steel electrode, and the particle electrode is located between the cathode and anode electrodes; the particle electrode uses activated activated carbon fiber as a carrier, and the carrier is loaded with Fe and Co. The metal corresponds to the catalyst in the oxide.

[0051] The weight of the catalyst loaded on the activated activated carbon fiber is 5% of the activated carbon fiber.

[0052] The preparation method of the three-dimensional particle electrode loaded with catalyst activated carbon fiber includes the following steps.

[0053] 1) Dissolve the nitrates of Fe and Co in deionized water first to obtain the corresponding impregnating solution. The concentration of metal cations in the impregnating solution is 0.7mol / L.

[0054] 2) Cut the activated carbon fiber into a sheet material with a size of 10 × 10 mm, wash it thoroughly with deionized w...

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Abstract

The invention discloses an active carbon fiber three-dimensional particle electrode catalyst and a preparation method thereof, and belongs to the technical field of electrocatalytic oxidation treatment of organic wastewater. The carrier of the particle electrode catalyst is activated active carbon fibers, and an activation technology comprises the steps of removal of ash from the active carbon fibers and surface modification of the active carbon fibers by an electrochemical reduction technique; and one or any combination of oxides of Fe, Co, Mn and Sn is supported on the active carbon fiber carrier to form the particle electrode catalyst. The preparation method comprises the following steps: removal of the ash from the active carbon fibers, addition of the activated active carbon fibers toa metal impregnation solution, and catalyst loading using an isopyknic impregnation technology. The catalyst has the advantages of high efficiency in removal of organic pollutants from the wastewater, no additional oxides in the reaction process, reduction of the process operation risk, simple required device, strong oxidation capability and low production cost, and can be applied to the treatment of the organic wastewater.

Description

technical field [0001] The invention relates to an activated carbon fiber three-dimensional particle electrode catalyst and a preparation method thereof, which can be used as filling particles for a three-dimensional electrode reactor and for the treatment of refractory biodegradable organic wastewater, and belongs to the technical field of electrocatalytic oxidation treatment of organic wastewater. Background technique [0002] Electrocatalytic oxidation technology is a new type of high-efficiency organic wastewater treatment method that has been developed rapidly in the past 30 years. After years of development, anode direct electrooxidation technology, indirect electrocatalytic oxidation technology and three-dimensional electrode electrooxidation technology have been formed. The main principle is to generate strong oxidizing hydroxyl radical OH by electrolysis － , Free radicals react quickly with organic pollutants to achieve rapid degradation of pollutants. For the anod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/75B01J23/889B01J37/34C02F1/461C02F1/72C02F101/30
CPCC02F1/4672B01J23/75B01J23/8892B01J37/342B01J37/348C02F2101/30B01J35/33
Inventor 刘伟军周汾涛高建军马磊曹刚张俊明梁博李林君
Owner 山西晋环科源环境资源科技有限公司
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