Preparation method for magnetic biological carbon by one-step synthesis
A biochar, magnetic technology, applied in the directions of alkali metal compounds, chemical instruments and methods, alkali metal oxides/hydroxides, etc., can solve the problems of high cost, cumbersome process, etc., and achieve remarkable effect, simplified process and convenient preparation. simple craftsmanship
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[0025] Example 1:
[0026] The biomass raw materials are air-dried under natural conditions and stored for later use. The biomass raw materials are crushed into about 2cm in length. The dried and crushed biomass raw materials are added to the content of Fe 2+ And Fe 3+ In the iron salt solution, in the iron salt solution, Fe 2+ The molar concentration of is 0.4mol / L, Fe 3+ The molar concentration of is 0.04 mol / L, the biomass raw material is added to the iron salt solution to obtain a mixed solution, and the weight percentage of the biomass raw material in the mixed solution is 0.03%.
[0027] The iron salt solution is a mixture of divalent iron salt solution and trivalent iron salt solution,
[0028] The ferrous salt solution is obtained by the following method: adding FeSO 4 Dissolved in deionized water.
[0029] The ferric salt solution is obtained by the following method: adding Fe 2 (SO 4 ) 3 -nH 2 O is soluble in deionized water.
[0030] The divalent iron salt solution and the tr...
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[0035] Example 2:
[0036] The biomass raw materials are air-dried under natural conditions and stored for later use. The biomass raw materials are crushed into a length of about 4cm. The dried and crushed biomass raw materials are added to the Fe 2+ And Fe 3+ In the iron salt solution, in the iron salt solution, Fe 2+ The molar concentration of is 0.6mol / L, Fe 3+ The molar concentration of is 0.06 mol / L, and the mixed solution is obtained by adding biomass raw materials to the iron salt solution. The weight percentage of the biomass raw materials in the mixed solution is 0.05%.
[0037] The iron salt solution is a mixture of divalent iron salt solution and trivalent iron salt solution,
[0038] The ferrous salt solution is obtained by the following method: adding FeSO 4 Dissolved in deionized water.
[0039] The ferric salt solution is obtained by the following method: adding Fe 2 (SO 4 ) 3 -nH 2 O is soluble in deionized water.
[0040] The divalent iron salt solution and the trivalen...
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