Method utilizing biochar for preparing nanocarbon sol

Abstract

The invention discloses a method utilizing biochar for preparing nanocarbon sol. The method is characterized in that two electrodes are placed in a neutral electrolyte water solution, and a carbon nano solution is adopted in the neutral electrolyte water solution; the conductivity of the neutral electrolyte water solution is adjusted to range from 1,800 mSv to 2,000 mSv, a conductive material is arranged between the two electrodes, and the conductive carbon material between the two electrodes is particle or powder conductive biochar, and the specific surface area of the conductive carbon material is larger than 100 m<2> / g; the conductive carbon material is placed in a porous insulation container; the distance between the two electrodes is 1-80 cm, the voltage is smaller than or equal to 110 V, and the direct current pulse voltage of 1-400Hz is adopted; and the effective current density ranges from 35 A / m<2> to 48 A<2>, and the electrolysis time is 4-24 h. According to the method, the preparing time is greatly shortened, the electrode materials are not limited, and the cost can be obviously reduced.

Description

technical field [0001] The invention relates to the field of using nanometer carbon as a fertilizer additive. Background technique [0002] The nano-carbon prepared by the prior art generally has low efficiency and requires complex post-processing. For example, the existing electrolyte does not use a neutral electrolyte, and the electrode uses a graphite electrode with a purity of more than 99%, so the production efficiency is low. The prepared product is very easy to settle or agglomerate, and it is difficult to apply to modern agriculture. Contents of the invention [0003] A method for preparing nano-carbon sol by using biochar, characterized in that: two electrodes are placed in a neutral electrolyte aqueous solution, and the neutral electrolyte aqueous solution adopts a carbon nano solution; the conductivity of the neutral electrolyte aqueous solution is adjusted to 1800-2000 Millisieverts, the conductive material is placed between two electrodes, and the conductive...

AI Technical Summary

Problems solved by technology

[0002] The nano-carbon prepared by the prior art generally has low efficiency and requires complicated post-processing

For example, the existing electrolyte does not use a neutral electrolyte, and the electrode uses a graphite electrode with a purity of more than 99%, which leads to low production efficiency

The prepared product is very easy to settle or agglomerate, which is difficult to apply to modern agriculture