Slow-release bactericide suitable for hospital environment and preparation method oflow-release bactericide
A slow-release, fungicide technology, applied in the field of slow-release fungicide and its preparation
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Embodiment 1
[0046] (1) Weigh 29.75g Zn(NO 3 ) 2 ﹒ 6H 2 O and 18.76g Al(NO 3 ) 3 ﹒ 9H 2 O dissolved in 200ml to remove CO 2 Mixed salt solution was prepared with water, another 8.0g NaOH was dissolved in 100ml to remove CO 2 Prepare alkaline solution in water, N at room temperature 2 Protection Use the double-drop method to add the salt solution and the alkali solution into the four-neck flask, and stir vigorously. Adjust the pH value to 7 with 0.1mol / L NaOH solution. The resulting slurry was crystallized at 60°C for 72h, centrifuged and washed 3 times; the sample was taken out and dried at 50°C for 48h for characterization, and ZnAl-NO 3 -LDHs, whose molar ratio Zn 2+ / Al 3+ =2.
[0047] (2) Dissolve 17.4g sodium dodecylbenzenesulfonate and 9.0g sodium benzenesulfonate in 150mL to remove CO 2 After the deionized water was transferred to the four-necked bottle, 10g of hydrotalcite precursor ZnAl-NO was added 3 -LDHs,N 2 Protected and heated to 50°C, reacted for 48h under st...
Embodiment 2
[0051] (1) Weigh 25.63g Mg(NO 3 ) 2 ﹒ 6H 2 O and 18.76g Al(NO 3 ) 3 ﹒ 9H 2 O dissolved in 200ml to remove CO 2 Mixed salt solution was prepared with water, another 8.0g NaOH was dissolved in 200ml to remove CO 2 Prepare alkaline solution in water, N at room temperature 2 Protection Use the double-drop method to add the salt solution and the alkali solution into the four-neck flask, and stir vigorously. Adjust the pH value to 10 with 1.0mol / L NaOH solution. The obtained slurry was crystallized at 80°C for 12h, and the product was washed by centrifugation for 5 times; the sample was taken out and dried at 70°C for 20h for characterization, and MgAl-NO 3 -LDHs, whose molar ratio Mg 2+ / Al 3+ =2.
[0052](2) Dissolve 7.0g sodium dodecylbenzenesulfonate and 18.0g sodium benzenesulfonate in 150mL to remove CO 2 After the deionized water was transferred to the four-necked bottle, 10g of hydrotalcite precursor MgAl-NO was added 3 -LDHs, N 2 Protected and heated to 70°C...
Embodiment 3
[0056] (1) Weigh 29.08g Ni(NO 3 ) 2 ﹒ 6H 2 O and 18.76g Al(NO 3 ) 3 ﹒ 9H 2 O dissolved in 250ml to remove CO 2 Mixed salt solution was prepared with water, another 8.0g NaOH was dissolved in 200ml to remove CO 2 Prepare alkaline solution in water, N at room temperature 2 Protection Use the double-drop method to add the salt solution and the alkali solution into the four-neck flask, and stir vigorously. Adjust the pH value to 7 with 3mol / L NaOH solution. The resulting slurry was crystallized at 70°C for 36h, and the product was centrifuged and washed 4 times; the sample was taken out and dried at 60°C for 36h for characterization, and NiAl-NO 3 -LDHs, whose molar ratio Zn 2+ / Al 3+ =2.
[0057] (2) Dissolve 34.8g sodium dodecylbenzenesulfonate and 3.6g sodium benzenesulfonate in 150mL to remove CO 2 deionized water into the four-necked bottle, and then add 10g of hydrotalcite precursor NiAl-NO 3 -LDHs, N 2 Protected and heated to 60°C, reacted for 36h under stir...
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