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Electrocatalysis reaction device

A reaction device and electrocatalysis technology, applied in the field of electrocatalysis, can solve the problems of poor ductility, high cost, and difficulty in adapting to different shapes of reactors, and achieve the effects of strong adaptability, improved efficiency, and multi-directional needs.

Pending Publication Date: 2018-09-04
HUAQIAO UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In terms of expanding the electrode surface area, the traditional noble metal electrode plate has problems such as high cost and poor ductility, and it is difficult to adapt to the needs of reactors of different shapes

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 and figure 2 As shown, an electrocatalytic reaction device includes an electrocatalytic body 1 and an electrolytic cell 2 .

[0026] The electrocatalytic body 1 includes an anode catalytic layer 11 made of graphene, a dielectric layer 12 made of porous non-woven fabric, and a cathode layer 13 made of carbon cloth, which are stacked sequentially from top to bottom. The thickness of the dielectric layer 12 is 1 to 5mm, preferably 2-3mm;

[0027] The electrolytic cell 2 is a cuboid made of glass, with a feed port 21 and a discharge port 22 respectively provided at both ends in the horizontal direction;

[0028] The electrocatalytic body 1 is folded in a serpentine shape in the horizontal direction to form a multi-layer structure of 5 layers, then placed in the electrolytic cell 2, and immersed in the electrolyte containing pollutants that continuously flows in from the feed port 21 and flows out from the discharge port 22 The electrocatalytic reaction ...

Embodiment 2

[0035] Using the electrocatalytic reaction device prepared in Example 1, 10 ppm paracetamol solution was used as the target pollutant at room temperature. Pollutants are sampled at a rate of 50 mL / min, and samples are taken at the outlet 22 at a sampling interval of every 5-10 min, and the volume of each sample is about 2.5 mL. Then high performance liquid chromatography (HPLC, Waters 2695) was used to measure the concentration of residual paracetamol in the water samples, and the average time span of each experiment was about 100 minutes.

[0036] The three-dimensional structure of the electrocatalytic reaction device such as figure 1 shown. The electrocatalytic activity test results of the reactor under continuous flow conditions are as follows: image 3 shown by image 3 It can be seen that as the distance between the anode catalytic layer 11 and the cathode layer 13 decreases, the removal efficiency of paracetamol tends to increase. But when the distance between the an...

Embodiment 3

[0038] Using the electrocatalytic reaction device prepared in Example 1, 10 ppm paracetamol solution was used as the target pollutant at room temperature. Pollutants are sampled at a rate of 50mL / min, and samples are taken at the outlet 22 at a sampling interval of every 5-10min, and the volume of each sample is about 2.5mL. The concentration of RBk5 dye remaining in the water samples was measured at 600nm by a UV-Vis spectrophotometer (UV-VIS, U-3900, Hitachi, Japan), and the average time span of each experiment was about 100min.

[0039] The electrocatalytic dye activity test results of the above electrocatalytic reaction device are as follows: Figure 4 shown by Figure 4 It can be seen that the electrocatalytic reaction device has very good catalytic activity for RBk5 dye, and under the condition of the distance between the anode catalytic layer 11 and the cathode layer 13, the catalytic degradation efficiency of the dye can reach more than 85% within 30 minutes. Wherein...

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Abstract

The invention discloses an electrocatalysis reaction device, which comprises an electrocatalysis body and an electrolytic bath, wherein electrocatalysis body comprises an anode catalysts layer, a medium layer and a cathode layer formed through sequential overlapping from top to bottom; a feeding opening and a discharging opening are respectively formed in the two ends in the horizontal direction;the electrocatalysis body is folded in a snake shape in the horizontal direction so as to form a multilayer structure, is then placed in the electrolytic bath, and is soaked in a pollutant-containingelectrolyte solution flowing in from the feeding opening and flowing out of the discharging opening for electrocatalysis reaction; gaps exist between the two adjacent layers in the multilayer structure. The electrocatalysis reaction device has the advantages that the adaptability to treatment fields is high; the dimension of the negative and positive pole plates and medium materials can be regulated to adapt to different fields; an important technical measure is provided for the practical application of the electrocatalysis oxidization technology.

Description

technical field [0001] The invention belongs to the technical field of electrocatalysis, and in particular relates to an electrocatalysis reaction device. Background technique [0002] Electrochemical catalytic technology, as an advanced oxidation technology, has been proved by many studies that it has an efficient degradation effect on organic pollutants in water. Compared with traditional physical, chemical, biochemical and other sewage treatment technologies and methods, electrocatalytic oxidation technology has high treatment efficiency. , No secondary pollution, small facility footprint, strong parameter controllability and other advantages. Although electrocatalytic oxidation has many advantages, for a long time, due to the low current efficiency and high energy consumption of the process to degrade organic matter, and the lack of appropriate electrode materials, it has been difficult to realize industrialization. In the electrocatalytic oxidation technology, the dist...

Claims

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Application Information

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IPC IPC(8): C02F1/461C02F1/72
CPCC02F1/4672
Inventor 张倩洪俊明黄湾王霁陈翔宇
Owner HUAQIAO UNIVERSITY
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