A kind of 3D structure boehmite adsorption material, preparation method and application thereof
An adsorption material, boehmite technology, applied in the field of 3D nano-hierarchical structure boehmite material and its preparation, can solve problems such as complex process, and achieve the effect of simple operation, convenient processing, fast and efficient adsorption performance
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Embodiment 1
[0022] Example 1: Weigh 0.75g (2mmol) of aluminum nitrate and dissolve it in 80ml of deionized water-ethanol as a 10:1 mixed solvent, and add 0.0076g (0.02mmol) of sodium phosphate and 0.003g of sodium chloride into it, and magnetically After stirring for 2 hours, the above solution was put into the reaction kettle and reacted for 10 hours at 170°C under airtight conditions. After the reaction, the product was separated, and the obtained precipitate was washed with deionized water and ethanol several times, and finally dried in vacuum at 80°C for 3 hours to obtain 3D structure boehmite. Boehmite is a powder material, and the geometry of each particle is in the shape of a conjoined bundle, with a length of 2-4um and a width of 0.5-1um. Each particle is composed of one-dimensional nanofibers with a diameter of 2-5nm and a length of 1-4um, which are self-assembled and densely packed to form a 3D nanometer hierarchical structure. Product specific surface area 190m 2 / g, the pore...
Embodiment 2
[0024] Example 2: Weigh 0.75g (2mmol) of aluminum nitrate and dissolve it in 80ml of deionized water-ethanol in a mixed solvent of 8:1, add 0.0038g (0.01mmol) of sodium phosphate, 0.001g of sodium chloride, and 0.0009g Sodium sulfate, after magnetic stirring for 2 hours, put the above solution into the reaction kettle and react under airtight conditions at 160°C for 15 hours. Vacuum-dried for 3h to obtain 3D structure boehmite. Boehmite is a powder material, and the geometry of each particle is in the shape of a conjoined bundle, with a length of 2-4um and a width of 0.5-1um. Each particle is composed of one-dimensional nanofibers with a diameter of 2-5nm and a length of 1-4um, which are self-assembled and densely packed to form a 3D nanometer hierarchical structure. Product specific surface area 160m 2 / g, the pore volume is 0.5cm 3 / g, the average pore diameter is 9nm.
[0025] Prepare 100ml, 90mg / L Congo red solution, then add 100mg boehmite to form a 1000mg / L boehmite ...
Embodiment 3
[0026] Example 3: Weigh 0.4895g (2mmol) of aluminum chloride and dissolve it in 80ml of deionized water-ethanol as a 10:1 mixed solvent, add 0.0057g (0.015mmol) of sodium phosphate, 0.0012g of potassium chloride, 0.0005 g sodium sulfate, after magnetic stirring for 2 hours, put the above solution into the reaction kettle and react at 170°C for 10 hours. Vacuum drying for 3 hours yielded rice-bundle-like 3D boehmite. Boehmite is a powder material, and the geometry of each particle is in the shape of a conjoined bundle, with a length of 2-4um and a width of 0.5-1um. Each particle is composed of one-dimensional nanofibers with a diameter of 2-5nm and a length of 1-4um, which are self-assembled and densely packed to form a 3D nanometer hierarchical structure. Product specific surface area 178m 2 / g, the pore volume is 0.6cm 3 / g, the average pore diameter is 2nm.
[0027] Prepare 100ml, 5mg / L Congo red solution, then add 10mg boehmite to form a 100mg / L boehmite suspension, sti...
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