High specific surface area saccharose and silkworm excrement composite carbon material as well as preparation method and application thereof
A high specific surface, composite carbon technology, applied in the fields of botanical equipment and methods, applications, animal repellents, etc., can solve the problems of non-target biological damage to the environment, excessive pesticide residues in agricultural products, and low pesticide utilization efficiency, etc. Effect of solvent usage, reduction of waste liquid discharge, and efficiency improvement
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Embodiment 1
[0030] A preparation method of a high specific surface sucrose silkworm excrement composite material, comprising the following steps,
[0031] (1) in N 2 In the atmosphere, 10.0 g of raw silkworm excrement was raised to 500°C at a heating rate of 5°C / min, kept at 500°C for more than 5.0 hours, and then cooled to room temperature to prepare carbonized silkworm excrement.
[0032] (2) Put 0.25g of sucrose powder and 0.25g of carbonized silkworm excrement into a ball mill jar, add 1.0mL of ZnCl with a mass concentration of 0.25g / L 2 solution; the ball mill jar is sealed and placed in a high-speed mechanical oscillating ball mill to oscillate, the rotating speed is 1000 rpm, and the grafting reaction time is 60min (normal pressure sealing is carried out in the reaction process); the obtained sucrose / ZnCl 2 / Silkworm excrement composite slurry is directly dried at 80°C to obtain crude composite material;
[0033] (3) the obtained composite material crude product in step (2) in N ...
Embodiment 2
[0035] (1) in N 2 In the atmosphere, 10.0 g of raw silkworm excrement was raised to 600°C at a heating rate of 5°C / min, kept at 600°C for more than 4.0 hours, and then cooled to room temperature to prepare carbonized silkworm excrement.
[0036] (2) Put 0.25g of sucrose powder and 0.5g of carbonized silkworm excrement into a ball mill jar, add 3.0mL of ZnCl with a mass concentration of 0.30g / L 2 solution alcohol; the ball mill jar is sealed and placed in a high-speed mechanical oscillating ball mill to oscillate, the rotating speed is 1050 rev / min, and the grafting reaction time is 50min (normal pressure sealing is carried out in the reaction process); the obtained sucrose / ZnCl 2 / Silkworm excrement composite slurry was directly dried at 80°C to obtain crude composite material.
[0037] (3) the obtained composite material crude product in step (2) in N 2 In the atmosphere, the temperature was raised to 550°C at a rate of 5°C / min, and kept at 550°C for 4.0 hours. After the na...
Embodiment 3
[0039] (1) in N 2 In the atmosphere, 10.0 g of raw silkworm excrement was raised to 700°C at a heating rate of 5°C / min, kept at 700°C for more than 3.0 hours, and then cooled to room temperature to prepare carbonized silkworm excrement.
[0040] (2) 0.25g of sucrose powder and 0.75g of carbonized silkworm excrement were placed in a ball mill jar, and 5.5mL of ZnCl with a mass concentration of 0.25g / L was added 2 solution; the ball mill jar is sealed and placed in a high-speed mechanical oscillating ball mill to oscillate, the rotating speed is 1100 rpm, and the grafting reaction time is 45min (normal pressure sealing is carried out in the reaction process); the obtained sucrose / ZnCl 2 / Silkworm excrement composite slurry was directly dried at 90°C to obtain crude composite material.
[0041] (3) the obtained composite material crude product in step (2) in N 2 In the atmosphere, the temperature was raised to 600°C at a rate of 5°C / min, and kept at 600°C for 3.0 hours. After c...
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