Preparation method of nickel-aluminum hydrotalcite capable of adsorbing Congo red in dye wastewater
A nickel-aluminum hydrotalcite, dye adsorption technology, applied in the direction of adsorption water/sewage treatment, water/sewage treatment, chemical instruments and methods, etc., can solve the problems of carcinogenicity and damage to unborn babies, etc., to increase the adsorption performance and increase the surface area Effect of polarity, good adsorption performance
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example 1
[0025] First, weigh 0.009mol of nickel phosphate and 0.003mol of aluminum nitrate and dilute them in 80mL of anhydrous ethanol solution containing 0.04mol of urea, stir at room temperature for 1h; The temperature can reach room temperature; remove ions with ethanol and wash with water for several times, and dry at 60°C for 6 hours; calcinate the obtained sample in a boiling furnace at 500°C for 2 hours, and the heating rate is 2°C / min; after calcination Add 0.1 mol / L sodium dodecylbenzenesulfonate and soak in ethanol acetate solution for 12 hours; after soaking, dry in a constant temperature furnace at a temperature of 105°C to obtain nickel-aluminum hydrotalcite.
[0026] To treat the wastewater effluent from a dye factory, 10L of dye wastewater was firstly taken for testing, and its chroma was measured to be 15 and its pH to be 10. The dye wastewater was put into a container, and then the nickel-aluminum hydrotalcite was wrapped three layers with gauze and placed in the conta...
example 2
[0028] First, weigh 0.009mol nickel phosphate and 0.003mol aluminum nitrate and dilute them in 80mL of absolute ethanol solution containing 0.04mol urea, stir at room temperature for 1h; The temperature can reach room temperature; remove ions with ethanol and wash with water for several times, and dry at 60°C for 7 hours; calcinate the obtained sample in a boiling furnace at 550°C for 3 hours, and the heating rate is 2°C / min; after calcining Add 0.3 mol / L sodium dodecylbenzenesulfonate and soak in ethanol acetate solution for 18 hours; after soaking, dry in a constant temperature furnace at a temperature of 105°C to obtain nickel-aluminum hydrotalcite.
[0029] To treat the wastewater effluent from a dye factory, 15L of dye wastewater was firstly taken for testing, and its chroma was 17 and its pH was 12. The dye wastewater was put into a container, and then the nickel-aluminum hydrotalcite was wrapped three layers with gauze and placed in the container. Put it into a vessel c...
example 3
[0031] First, weigh 0.009mol of nickel phosphate and 0.003mol of aluminum nitrate and dilute them in 80mL of anhydrous ethanol solution containing 0.04mol of urea, stir at room temperature for 1h; The temperature can reach room temperature; remove ions with ethanol and wash with water several times, and dry at 60°C for 8 hours; calcinate the obtained sample in a boiling furnace at 600°C for 4 hours, and the heating rate is 2°C / min; after calcination Add 0.5 mol / L sodium dodecylbenzenesulfonate and soak in ethanol acetate solution for 24 hours; after soaking, dry in a constant temperature furnace at a temperature of 105°C to obtain nickel-aluminum hydrotalcite.
[0032] To treat the wastewater effluent from a dye factory, 20L of dye wastewater was firstly taken for testing, and its chroma was measured to be 20 and its pH to be 15. The dye wastewater was put into a container, and then the nickel-aluminum hydrotalcite was wrapped three layers with gauze and placed in the container...
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