A method for preparing nitrogen-containing activated carbon by ammonia activation
A technology of activated carbon and ammonia gas, applied in chemical instruments and methods, carbon compounds, inorganic chemistry, etc., can solve the problems of cumbersome operation, harsh process requirements, equipment corrosion, etc., and achieve the effect of simple operation
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Embodiment 1
[0039] Example 1: A method for preparing nitrogen-containing activated carbon by ammonia activation
[0040] These include the following steps:
[0041] 1. Pre-treatment
[0042] The water-soluble amide, surfactant, and permeable agent are dissolved in deionized water, prepared into a pretreatment solution, temperature control 80 ° C, the activated carbon is put into the solution, sonication is performed for 4 hours, and then the activated carbon is filtered out, the activated carbon is leached with deionized water until the pH is neutral, placed in an oven, and the pretreated activated carbon is obtained after drying for 3 hours at 110 °C;
[0043] The particle size of the activated carbon is 15 mesh, the internal pore size is 90 nm, and the specific surface area is 850 m² / g;
[0044] The mass ratio of the activated carbon to the pretreatment solution is 30:100;
[0045] In the pretreatment solution, the mass ratio of water-soluble amides, surfactants, permeable agents, deionize...
Embodiment 2
[0064] Example 2: A method for preparing nitrogen-containing activated carbon by ammonia activation
[0065] These include the following steps:
[0066] 1. Pre-treatment
[0067] The water-soluble amide, surfactant, permeable agent dissolved in deionized water, formulated into a pretreatment solution, temperature control 60 ° C, the activated carbon into the solution, ultrasonic vibration for 2 hours, and then filter out the activated carbon, the activated carbon with deionized water is leached to pH neutral, placed in the oven, dried at 90 ° C for 2 hours to obtain pretreated activated carbon;
[0068] The particle size of the activated carbon is 5 mesh, the internal pore size is 50 nm, and the specific surface area is 700 m² / g;
[0069] The mass ratio of the activated carbon to the pretreatment solution is 20:100;
[0070] In the pretreatment solution, the mass ratio of water-soluble amides, surfactants, permeable agents, deionized water is 5: 1: 0.5: 50;
[0071] The water-solubl...
Embodiment 3
[0089] Example 3: A method for preparing nitrogen-containing activated carbon by ammonia activation
[0090] These include the following steps:
[0091] 1. Pre-treatment
[0092] The water-soluble amide, surfactant, and permeable agent are dissolved in deionized water, prepared into a pretreatment solution, temperature control 90 ° C, the activated carbon is put into the solution, ultrasonically shaken for 8 hours, and then the activated carbon is filtered out, the activated carbon is leached with deionized water until the pH is neutral, placed in an oven, and the pretreated activated carbon is obtained after drying for 4 hours at 130 °C;
[0093] The particle size of the activated carbon is 30 mesh, the internal pore size is 150 nm, and the specific surface area is 950 m² / g;
[0094] The mass ratio of the activated carbon to the pretreatment solution is 40:100;
[0095] The pretreatment solution, the mass ratio of water-soluble amides, surfactants, permeable agents, deionized wat...
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