Magnetic two-peak mesoporous carbon containing iron-nickel double metals, preparation method and application thereof
A bimetallic and mesoporous carbon technology, applied in the direction of alkali metal compounds, chemical instruments and methods, alkali metal oxides/hydroxides, etc., can solve the problems of small adsorption capacity, weak magnetism, etc., and achieve difficult agglomeration and distribution Uniform, excellent magnetic properties
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Embodiment 1
[0035] A magnetic bimodal mesoporous carbon containing iron-nickel bimetal of the present invention, the magnetic bimodal mesoporous carbon containing iron-nickel bimetal uses magnetic bimodal mesoporous carbon as a carrier, and iron-nickel alloy nanoparticles are dispersed on the magnetic bimodal mesoporous carbon The peak mesoporous carbon forms an ordered bimodal mesoporous structure, and the two peaks of the pore size distribution appear around 4nm and 18nm respectively, and the particle size of the iron-nickel alloy nanoparticles is 10nm-20nm.
[0036] A method for preparing the magnetic bimodal mesoporous carbon containing iron-nickel bimetal of the present embodiment, comprising the following steps:
[0037] 1. Preparation of mesoporous silicon template:
[0038] 1-1. First, put 4.0g of polyethylene oxide-polypropylene oxide-polyethylene oxide block copolymer P123 (manufactured by Sigma, with a molecular weight of 5800) in 160ml of HCl with a concentration of 1.5M, and ...
Embodiment 2
[0055] An application of the magnetic bimodal mesoporous carbon containing iron-nickel bimetal prepared in Example 1 in the removal of methylene blue and methyl orange in water, its application method specifically includes the following steps:
[0056] (1) Prepare 8 groups of 25mL aqueous solutions containing methylene blue with a concentration of 150mg / L, and adjust the pH values to 3, 4, 5, 6, 7, 8, 9 and 10 respectively. Prepare 8 groups of 25mL 150mg / L aqueous solutions containing methyl orange in the same way, and adjust the pH values to 3, 4, 5, 6, 7, 8, 9 and 10 respectively.
[0057] (2) Add 5 mg of magnetic bimodal mesoporous carbon containing iron-nickel bimetal to each group of solutions. After oscillating and adsorbing at 25 ° C and 150 rpm for 2 hours, magnetic separation by an external magnetic field is performed to complete the removal of dye pollutants in water. removal.
[0058] Then utilize the ultraviolet spectrophotometer to measure the content of rema...
Embodiment 3
[0061] An application of the magnetic bimodal mesoporous carbon containing iron-nickel bimetal prepared in Example 1 in the removal of methylene blue and methyl orange in water, its application method specifically includes the following steps:
[0062] Prepare 25 mL of an aqueous solution containing methyl orange at a concentration of 150 mg / L and 25 mL of an aqueous solution containing methylene blue at a concentration of 150 mg / L, and adjust the pH values of the two aqueous solutions to be 7. Then add 5 mg of magnetic bimodal mesoporous carbon containing iron-nickel bimetal into two sets of aqueous solutions, and vibrate and adsorb at 25°C and 150rpm for 15min, 30min, 1h, 1.5h, 2h, 3h, 5h, 10h, 20h Finally, through magnetic separation by an external magnetic field, the removal of dye pollutants in the water body is completed.
[0063] Utilize the ultraviolet spectrophotometer to measure the content of remaining methylene blue and methyl orange in the solution, and calculat...
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