Method for preparing composite assembled object of magnetic ferriferous oxide/ molecular sieve of Nano zeolite
A magnetic iron oxide, nano-zeolite technology, applied in the direction of silicon compound, crystalline aluminosilicate zeolite, inorganic chemistry, etc., can solve the problems of high manufacturing cost of adsorption materials, low adsorption efficiency, large amount of introduction, etc., and achieve a simple regeneration process. Easy operation, excellent adsorption performance, stable properties
Examples
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 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.
[0026] ④Put 0.05 g of the magnetic iron oxide-modified nano-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) (analytical pure potassium dihydrogen phosphate KH2PO4 is formulated into a standard solution of 1000mg / L (calculated as P), and the pH value is adjusted by 1mol / L HCl or NaOH solution (diluted to a corres...
Embodiment 2
[0029] ① Choose self-made BEAT nano zeolite material 1g.
[0030] ②Add 0.5mol / L FeCl 3 .6H 2O and 0.25mol / 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.
[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-modified nano-zeolite molecular sieve composite assembly material prepared in the above example into 5 mL of 50 μg / mL (total P) phosphorus-containing simulated aqueous solution to adjust the pH value of the aqueous solution system 3-5, adsorption at room temperature for 12 hours, the adsorption efficiency is 64%.
[0033] Put 0.05 g of the magnetic iron oxide-modified nano-zeolite molecular sieve composi...
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-modified nano-zeolite molecular sieve composite assembly material prepared in the above example into 5 mL of 50 μg / mL (total P) phosphorus-containing simulated aqueous solution to adjust the pH value of the aqueous solution system 3-5, adsorption at room temperature for 12 hours, the adsorption efficiency is 62%
[0039] Put 0.05 g of the magnetic iron oxide-modified nano-zeolite molecular sieve composite assembly material prepared in the above example...
PUM
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Description
Claims
Application Information
- IPC
- B01J20/16; C01B39/06; C02F1/28
- Inventors
- 徐芳; 张蔚霞