Lignin carbon/nickel oxide nano composite material as well as preparation method and application thereof
A nano-composite material and lignin technology, which is applied in the field of lignin carbon/nickel oxide nano-composite materials and their preparation, can solve problems such as poor structural strength, and achieve the effects of high structural strength, environmental protection, and not easy to be broken.
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Embodiment 1
[0069] Take 500 g of sulfuric acid solution with a mass concentration of 10%, add 100 g of sodium lignosulfonate powder, stir while adding, and then filter to obtain a filtrate. Then take 500g of ethanol solution with a mass concentration of 50%, add it to the obtained filtrate, stir while adding, then centrifuge at 10000rpm for 10min, pour off the supernatant, and transfer the centrifugal sediment to a 50°C infrared drying oven Drying in medium for 24h to obtain purified sodium lignosulfonate with a degree of sulfonation greater than 2.0 mmol / g.
[0070] Prepare 100g of the above-mentioned purified sodium lignosulfonate solution with a mass concentration of 10%, 30g of a nickel chloride solution with a mass concentration of 10%, 30g of a sodium carbonate solution with a mass concentration of 10%, and 3g of p-aminobenzene with a mass concentration of 30% Sodium sulfonate solution and 3g formaldehyde solution with a mass concentration of 40% were slowly added dropwise to the pu...
Embodiment 2
[0073] Take 250 g of sulfuric acid solution with a mass concentration of 20%, add 100 g of sodium lignosulfonate powder, add while stirring, and then filter to obtain a filtrate. Then take 416.7g of ethanol solution with a mass concentration of 60%, add it to the obtained filtrate, stir while adding, then centrifuge at 10000rpm for 15min, pour off the supernatant, and transfer the centrifugal sediment to 50°C for infrared drying Dry in an oven for 24 hours to obtain purified sodium lignosulfonate with a degree of sulfonation greater than 2.0 mmol / g.
[0074] Prepare 25g mass concentration of 40% above-mentioned purified sodium lignosulfonate solution, 25g mass concentration of 20% nickel nitrate solution, 25g mass concentration of 20% sodium bicarbonate solution, 5g mass concentration of 40% p-aminobenzene Sodium sulfonate solution and 4g formaldehyde solution with a mass concentration of 50% were slowly added dropwise to the purified sodium bicarbonate solution, sodium p-amin...
Embodiment 3
[0077] Take 1250 g of sulfuric acid solution with a mass concentration of 4%, add 100 g of magnesium lignosulfonate powder, add while stirring, and then filter to obtain a filtrate. Then take 357.1g of ethanol solution with a mass concentration of 70%, add it to the obtained filtrate, stir while adding, then centrifuge at 12000rpm for 10min, pour off the supernatant, and transfer the centrifugal sediment to 50°C for infrared drying Dry in an oven for 24 hours to obtain purified magnesium lignosulfonate with a degree of sulfonation greater than 2.0 mmol / g.
[0078]Prepare 100g mass concentration of 10% above-mentioned purified magnesium lignosulfonate solution, 20g mass concentration of 5% nickel sulfate solution, 20g mass concentration of 5% potassium carbonate solution, 5g mass concentration of 10% p-aminobenzenesulfonic acid Sodium solution and 2.5g acetaldehyde solution with a mass concentration of 20% were slowly added dropwise to potassium carbonate solution, sodium p-ami...
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