Method for preparing composite assembled object of magnetic ferriferous oxide/ molecular sieve of Nano zeolite
A magnetic iron oxide and nano-zeolite technology, applied in the fields of magnetic field/electric field water/sewage treatment, adsorbed water/sewage treatment, etc., can solve the problems of high manufacturing cost of adsorbent materials, low adsorption efficiency, and a large amount of introduction, and achieve the regeneration process. Simple and easy operation, excellent adsorption performance, low cost effect
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Embodiment 1
[0023] ① Choose self-made BEAT nano zeolite material 1g.
[0024] ②Add 0.5mol / L FeCl 3 .6H 2 O and 0.3mol / L FeCl 2 .4H 2 A total of 100 mL of O was stirred and refluxed in a 60°C oil bath for 12 hours, and filtered.
[0025] ③In a 60°C water bath, under the protection of an inert nitrogen atmosphere, drop 50mL of 25% concentrated ammonia water on the filter cake at a rate of 2 drops per second and stir rapidly for one hour to form a dark brown substance. Let dry for 5 hours.
[0026] ④ Put 0.05 g of the magnetic iron oxide / nanometer zeolite molecular sieve composite assembly material prepared in the above example into a phosphorus-containing simulated aqueous solution of 50 μg / mL (total P) with a concentration of 5 mL (analytical pure potassium dihydrogen phosphate KH2PO4 Prepare a standard solution of 1000 mg / L (calculated as P), and the pH value is adjusted by 1mol / L HCl or NaOH solution. Diluted to a corresponding appropriate concentration) to adjust the pH value of th...
Embodiment 2
[0029] ① Choose self-made BEAT nano zeolite material 1g.
[0030] ②Add 0.5mol / L FeCl 3 .6H 2 O and 0.25mol / L FeCl2 .4H 2 A total of 100 mL of O was stirred and refluxed in a 60°C oil bath for 12 hours, and filtered.
[0031] ③In a water bath at 60°C, under the protection of an inert nitrogen atmosphere, drop 50mL of 25% concentrated ammonia water on the filter cake at a rate of 2 drops per second and stir rapidly for one hour to form a dark brown substance, then wash with water until nearly neutral, and dry at 60°C 5 hours.
[0032] ④Put 0.05 g of the magnetic iron oxide / nanometer zeolite molecular sieve composite assembly material prepared in the above example into a phosphorus-containing simulated aqueous solution with a concentration of 5 mL of 50 μg / mL (total P), and adjust the pH value of the aqueous solution system to 3-5, adsorption at room temperature for 12 hours, the adsorption efficiency is 64%.
[0033] Put 0.05 g of the magnetic iron oxide / nanometer zeolite m...
Embodiment 3
[0035] ① Choose self-made BEAT nano zeolite material 1g.
[0036] ②Add 0.5mol / L FeCl 3 .6H 2 O and 0.33mol / L FeCl 2 .4H 2 A total of 100 mL of O was stirred and refluxed in a 60°C oil bath for 12 hours, and filtered.
[0037] ③In a 60°C water bath, under the protection of an inert nitrogen atmosphere, drop 50mL of 25% concentrated ammonia water on the filter cake at a rate of 2 drops per second and stir rapidly for one hour to form a dark brown substance. Let dry for 5 hours.
[0038] ④Put 0.05 g of the magnetic iron oxide / nanometer zeolite molecular sieve composite assembly material prepared in the above example into a phosphorus-containing simulated aqueous solution with a concentration of 5 mL of 50 μg / mL (total P), and adjust the pH value of the aqueous solution system to 3-5, adsorption at room temperature for 12 hours, the adsorption efficiency is 62%
[0039] Put 0.05 g of the magnetic iron oxide / nanometer zeolite molecular sieve composite assembly material prepar...
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