A kind of preparation method of yellow-brown soil derived porous carbon material
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Embodiment 1
[0037] (1) Collect the yellow-brown soil with a surface depth of 10cm in Yangzhou area, remove impurities and dry it at 105°C, grind the blocky sample into powder and pass through a 400-mesh standard sampling sieve to obtain a brown yellow-brown soil fine powder;
[0038] (2) Weigh yellow-brown soil fine powder and white potassium carbonate particles with a mass ratio of 0.5:1, put them into an agate ball mill jar and carry out mechanical ball milling to obtain brown fine powder, wherein the ball milling speed is 400r / min, and the ball milling time is 5h , the brown fine powder is passed through a 500-mesh standard sampling sieve, and stored for subsequent use; 15g of the brown fine powder is placed in a reaction vessel as a hard template material, and 30g of a mass concentration is added to be an ethanol solution of 10wt% resole phenolic resin, and the reaction vessel is opened The brown solid product was obtained by low-temperature heat treatment in the air. The low-temperatu...
Embodiment 2
[0042] (1) Collect the yellow-brown soil with a surface depth of 10cm in Yangzhou area, remove impurities and dry it at 105°C, grind the blocky sample into powder and pass through a 400-mesh standard sampling sieve to obtain a brown yellow-brown soil fine powder;
[0043] (2) Take by weighing the yellow-brown earth fine powder and white potassium carbonate particle that mass ratio is 1:1, put into the agate ball mill jar and carry out mechanical ball milling and obtain brown fine powder, wherein the rotating speed of ball milling is 400r / min, and the ball milling time is 5h, pass the brown fine powder through a 500-mesh standard sampling sieve, and save it for later use; take 15g of the brown fine powder as a hard template material and place it in a reaction vessel, add 30g of a mass concentration of 10wt% ethanol solution of resole phenolic resin, and place it in the reaction vessel The brown solid product was obtained by low-temperature heat treatment in the open air. The low...
Embodiment 3
[0047] (1) Collect the yellow-brown soil with a surface depth of 10cm in Nanjing area, remove impurities and dry it at 105°C, grind the bulk sample into powder and pass through a 400-mesh standard sampling sieve to obtain a brown yellow-brown soil fine powder;
[0048] (2) Weigh yellow-brown soil fine powder and white potassium carbonate particles with a mass ratio of 2:1, put them into an agate ball mill jar for mechanical ball milling to obtain brown fine powder, wherein the ball milling speed is 400r / min, and the ball milling time is 5h , pass through a 500-mesh standard sampling sieve, and save for subsequent use; take 15g of brown fine powder as a hard template material and place it in a reaction vessel, add 30g of a mass concentration of 10wt% ethanol solution of resole phenolic resin, and the reaction vessel is exposed to the air A brown solid product was obtained by low-temperature heat treatment, wherein the low-temperature heat treatment process was: successively kept...
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