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Preparation method of kaolin-based three-dimensional particle electrode

A particle electrode and kaolin technology, applied in chemical instruments and methods, water treatment of special compounds, water pollutants, etc., can solve the problems of application limitations, iron sludge and catalysts can not be recycled, etc., to solve the problem of troublesome operation, electrical conductivity and Good catalytic performance and the effect of increasing the reaction area

Active Publication Date: 2017-06-09
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional electro-Fenton technology will produce a large amount of iron sludge and the catalyst cannot be recycled after the reaction, which limits its application.

Method used

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  • Preparation method of kaolin-based three-dimensional particle electrode
  • Preparation method of kaolin-based three-dimensional particle electrode

Examples

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Embodiment 1

[0033] A method for preparing a kaolin-based three-dimensional particle electrode, comprising the following steps:

[0034] (1) Grinding: First, grind the kaolin with a ball mill, then use a mortar to grind the kaolin into a finer powder as much as possible, pass through a 100-mesh molecular sieve, place it in a constant temperature drying oven at 80°C, and dry it to a constant weight; Subsequently, grind the black algae with a ball mill, and then use a mortar to grind the kaolin into a finer powder as much as possible, pass through an 80-mesh molecular sieve, and place it in a constant temperature drying oven at 120°C to dry and set a constant weight;

[0035] (2) Mixing molding: get 0.7446g (0.5wt% Fe) ferrous sulfate heptahydrate and 0.5859g (0.5wt% Cu) copper sulfate pentahydrate to be dissolved in 20mL deionized water, 18g kaolin powder after pretreatment and Put 12g of black algae powder into the mixed solution of ferrous sulfate heptahydrate and copper sulfate pentahydr...

Embodiment 2

[0042]A method for preparing a kaolin-based three-dimensional particle electrode, comprising the following steps:

[0043] (1) Grinding: First, grind the kaolin with a ball mill, then use a mortar to grind the kaolin into a finer powder as much as possible, pass through a 100-mesh molecular sieve, place it in a constant temperature drying oven at 100°C, and dry it to a constant weight; Subsequently, grind the black algae with a ball mill, and then use a mortar to grind the kaolin into a finer powder, pass through an 80-mesh molecular sieve, and place it in a constant temperature drying oven at 100°C to dry it to a constant weight;

[0044] (2) Mixing molding: take 1.4892g (1.0wt% Fe) ferrous sulfate heptahydrate and 1.1718g (1.0wt% Cu) copper sulfate pentahydrate and dissolve them in 20mL deionized water, and 21.0g kaolin powder after pretreatment Put 9.0g of black algae powder into the mixture of ferrous sulfate heptahydrate and copper sulfate pentahydrate, carry out equal vo...

Embodiment 3

[0051] A method for preparing a kaolin-based three-dimensional particle electrode, comprising the following steps:

[0052] (1) Grinding: First, grind the kaolin with a ball mill, then use a mortar to grind the kaolin into a finer powder as much as possible, pass through a 100-mesh molecular sieve, place it in a constant temperature drying oven at 80°C, and dry it to a constant weight; Subsequently, grind the black algae with a ball mill, and then use a mortar to grind the kaolin into a finer powder, pass through an 80-mesh molecular sieve, and place it in a constant temperature drying oven at 120°C to dry and set a constant weight;

[0053] (2) Mixing molding: take 2.9784g (2.0wt% Fe) ferrous sulfate heptahydrate and 2.3436g (2.0wt% Cu) copper sulfate pentahydrate and dissolve them in 20mL deionized water, and the 24.0g kaolin powder after pretreatment Put 6.0g of black algae powder into the mixed solution of ferrous sulfate heptahydrate and copper sulfate pentahydrate, carry...

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Abstract

The invention discloses a preparation method of a kaolin-based three-dimensional particle electrode, comprising the steps of (1) grinding, to be specific, grinding kaolin and Hydrilla to powder, and drying to constant weight; (2) mixing and forming, to be specific, dissolving ferrous sulfate septahydrate and copper sulfate pentahydrate in water to obtain mixed liquid, adding the kaolin powder and the Hydrilla powder to the mixed liquid, and performing isometric impregnation adsorption for 1-3 h so that uniform mixing is achieved and spheres 3-5 mm in particle size are produced; (3) drying, to be specific, drying the spheres; (4) calcining, to be specific, calcining the spheres to obtain the kaolin-based particle electrode. The kaolin-based particle electrode prepared through the method employs porous kaolin as a carrier and Hydrilla as a pore-forming agent, Fe and Cu metallic catalysts are supported to the kaolin-based particle electrode, the supported particle electrode can provide homogeneous Fe2+ and Cu2+ catalyst and nonhomogeneous Fenton catalyst for reaction, and dye wastewater can be degraded effectively and may be reused.

Description

technical field [0001] The invention relates to the field of environmental protection and governance, in particular to a preparation method of a kaolin-based three-dimensional particle electrode. Background technique [0002] Dyes are widely used in daily life, especially in dyeing, printing, textile and cosmetic industries. Due to the characteristics of complex pollutant components, deep color, refractory degradation and high toxicity, dye wastewater will cause serious harm to human body and aquatic organisms if it is discharged directly without treatment. At present, the traditional water treatment process is difficult to achieve ideal results for dye wastewater. Therefore, it is necessary to study the treatment technology of this kind of substances. [0003] As a green water treatment technology, electrochemistry is widely used in the control of refractory organic pollutants. Among them, the three-dimensional electrode is filled with granular or other debris-like elect...

Claims

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Application Information

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IPC IPC(8): C02F1/461C02F1/72
CPCC02F1/4672C02F2101/308C02F2305/026
Inventor 喻泽斌刘钰鑫侯燕萍胡晓吕保玉
Owner GUANGXI UNIV
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