A low-cost simple preparing method for nitrogen-doped porous charcoal with a high specific surface area
A high specific surface area, nitrogen doping technology, applied in chemical instruments and methods, inorganic chemistry, non-metallic elements, etc., can solve the problems of complex preparation, increased nitrogen loading process links, difficult to achieve nitrogen loading, etc. Simple, good wettability, stable effect
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Embodiment 1
[0015] a. Dry the commercially available soybean meal to remove its own moisture. Mix the dried soybean meal with KOH at a mass ratio of 4:1. KOH is prepared into a solution with a concentration of 50% before mixing, and soaked for 1 hour until the solution is fully absorbed by the soybean meal. can;
[0016] b. Place the mixture obtained in step a in a KOH activation kettle, raise the temperature to 100°C at a heating rate of 10°C / min under nitrogen protection, dehydrate at a constant temperature for 0.5h, then continue to heat up to the activation temperature to 600°C, keep it warm for 1h, and Cool directly to room temperature under room temperature environment;
[0017] c. Wash the substance obtained in step b with 5mol / L HCl and deionized water successively to remove the residual metal K and its compounds (that is, wash to neutrality), and dry it at 110°C to obtain activated carbon with a super high specific surface area .
[0018] The BET specific surface area of the ...
Embodiment 2
[0020] a. Dry the commercially available soybean meal and soybean meal to remove its own moisture. Mix the dried soybean meal with KOH at a mass ratio of 4:1. KOH is prepared into a solution with a concentration of 50% before mixing, and soaked for 1 hour until the solution is fully covered by soybean meal. Just absorb;
[0021] b. Put the mixture obtained in step a in a KOH activation kettle, raise the temperature to 100°C at a heating rate of 10°C / min under nitrogen protection, dehydrate at a constant temperature for 0.5h, then continue to heat up to the activation temperature to 700°C, keep it warm for 1h, and Cool directly to room temperature under room temperature environment;
[0022] c. Wash the substance obtained in step b with 5mol / L HCl and deionized water successively to remove the residual metal K and its compounds (that is, wash to neutrality), and dry it at 110°C to obtain activated carbon with a super high specific surface area .
[0023] The BET specific surf...
Embodiment 3
[0025] a. Dry the commercially available soybean meal and soybean meal to remove its own moisture. Mix the dried soybean meal with KOH at a mass ratio of 4:1. KOH is prepared into a solution with a concentration of 50% before mixing, and soaked for 1 hour until the solution is fully covered by soybean meal. Just absorb;
[0026] b. Place the mixture obtained in step a in a KOH activation kettle, raise the temperature to 100°C at a heating rate of 10°C / min under nitrogen protection, dehydrate at a constant temperature for 0.5h, then continue to heat up to the activation temperature to 800°C, keep it warm for 1h, and Cool directly to room temperature under room temperature environment;
[0027] c. Wash the substance obtained in step b with 5mol / L HCl and deionized water successively to remove the residual metal K and its compounds (that is, wash to neutrality), and dry it at 110°C to obtain activated carbon with a super high specific surface area .
[0028] The BET specific su...
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