Preparation method of kaolin-based three-dimensional particle electrode

[0032] Example 1

[0033] A method for preparing a kaolin-based three-dimensional particle electrode includes 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 a 100-mesh molecular sieve, and place it in a constant temperature drying oven at 80°C to dry and set 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 80 mesh molecular sieves, and place it in a constant temperature drying oven at 120°C to dry and set a constant weight;

[0035] (2) Mixed molding: Take 0.7446g (0.5wt% Fe) ferrous sulfate heptahydrate and 0.5859g (0.5wt% Cu) copper sulfate pentahydrate and dissolve them in 20mL deionized water, and mix the pretreated 18g kaolin powder with Put 12g of black algae powder into the mixed solution of ferrous sulfate heptahydrate and copper sulfate pentahydrate, immerse and abs

[0041] Example 2

[0042] A method for preparing a kaolin-based three-dimensional particle electrode includes 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 a 100-mesh molecular sieve, and place it in a constant temperature drying oven at 100°C to dry and set 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 80 mesh molecular sieve, and place it in a constant temperature drying oven at 100°C to dry and set a constant weight;

[0044] (2) Mixed 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 dissolve 21.0g kaolin powder after pretreatment Put 9.0g of black algae powder into the mixed solution of ferrous sulfate heptahydrate and copper sulfate pe

[0050] Example 3

[0051] A method for preparing a kaolin-based three-dimensional particle electrode includes 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 a 100-mesh molecular sieve, and place it in a constant temperature drying oven at 80°C to dry and set 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 80 mesh molecular sieves, and place it in a constant temperature drying oven at 120°C to dry and set a constant weight;

[0053] (2) Mixed 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 dissolve 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, immerse