Method for preparing activated carbon with high nitrogen-containing functional groups by modifying Cyperaceae plant-based activated carbon with shrimp bran
A technology of activated carbon preparation and Cyperaceae, applied in the direction of chemical instruments and methods, carbon compounds, other chemical processes, etc., can solve the problems of threats to human beings and the environment, high cost of preparation, and high cost, so as to solve the problem of the source of raw materials for preparation, The preparation process is simple and the effect of protecting the environment
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Embodiment 1
[0032] Clean scallops and shrimp bran with distilled water, dry them at 105°C for 6 hours, and then crush them to a particle size of 0.45-1.0 mm, mix the crushed scallop and shrimp bran evenly, wherein, the shrimp bran and scallop The mass ratio of grass is 1:199. After mixing, the grass and shrimp bran powder are mixed with 85wt% phosphoric acid in a mass ratio of 1:2, and then sealed and soaked for 12h (placed at room temperature); then the above samples are transferred to a muffle furnace. Heating to 500°C at a rate of 20°C / min at room temperature, carbonizing and activating at 500°C for 1 hour, then cooling to room temperature naturally; then washing with deionized water until nearly neutral, and drying at 105°C for 8 hours after suction filtration , and then grind until the powder passes through a 200-mesh sieve to obtain activated carbon.
Embodiment 3
[0034] Clean scallops and shrimp bran with distilled water, dry them at 105°C for 6 hours, and then crush them to a particle size of 0.45-1.0 mm, mix the crushed scallop and shrimp bran evenly, wherein, the shrimp bran and scallop The mass ratio of grass is 1:99. After mixing, the grass and shrimp bran powder are mixed with 85wt% phosphoric acid in a mass ratio of 1:2, and then sealed and soaked for 12h (placed at room temperature); then the above samples are transferred to a muffle furnace, Heating to 500°C at a rate of 20°C / min at room temperature, carbonizing and activating at 500°C for 1 hour, then cooling to room temperature naturally; then washing with deionized water until nearly neutral, and drying at 105°C for 8 hours after suction filtration , and then grind until the powder passes through a 200-mesh sieve to obtain activated carbon.
Embodiment 4
[0036] Clean scallops and shrimp bran with distilled water, dry them at 105°C for 6 hours, and then crush them to a particle size of 0.45-1.0 mm, mix the crushed scallop and shrimp bran evenly, wherein, the shrimp bran and scallop The mass ratio of grass is 3:197. After mixing, the grass and shrimp bran powder are mixed with 85wt% phosphoric acid in a mass ratio of 1:2, and then sealed and soaked for 12h (placed at room temperature); then the above samples are transferred to a muffle furnace, Heating to 500°C at a rate of 20°C / min at room temperature, carbonizing and activating at 500°C for 1 hour, then cooling to room temperature naturally; then washing with deionized water until nearly neutral, and drying at 105°C for 8 hours after suction filtration , and then grind until the powder passes through a 200-mesh sieve to obtain activated carbon.
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