Microsphere material assembled by patterned metal ammonium phosphate salt nanosheets and preparation method thereof
A technology of ammonium phosphate and nanosheets, which is applied in the direction of nanotechnology, non-metallic elements, chemical instruments and methods, etc., to achieve the effects of easy operation, good dispersion and narrow particle size distribution
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example 1
[0026] Add 3g of urea into 50mL of deionized water, stir for 0.5h to fully dissolve, then add 0.25g of SDS, stir until the solution is clear, then add 0.0624g of copper sulfate and 0.026g of phosphoric acid (85wt%), stir for 0.5h and then dropwise add 0.2 g NaOH dilute solution (5wt%), continue to stir for 0.5h, the pH value of the solution is 4.5, add the solution into the reaction kettle, synthesize at 80°C for 12h, and obtain a precipitate, which is recorded as sample A. The sample was rapidly cooled to room temperature, centrifuged, washed three times with deionized water and absolute ethanol, and finally dispersed in deionized water and ultrasonicated for 0.5 h. Such as figure 1 As shown, sample A is a three-dimensional structure formed by intersecting and stacking nanosheets, showing a "flower-like" microsphere structure, with an average particle size of 2.2 μm and an average thickness of nanosheets of 25 nm. After ultrasonication for 0.5 h, the morphology of the sample...
example 2
[0028] Add 3g of urea into 50mL of deionized water, stir for 0.5h to fully dissolve, then add 0.25g of SDS, stir until the solution is clear, then add 0.0624g of copper sulfate and 0.026g of phosphoric acid (85wt%), stir for 0.5h and then dropwise add 0.3g Dilute NaOH solution (5wt%), continue to stir for 0.5h, the pH of the solution is 5.5, add the solution into the reaction kettle, synthesize at 80°C for 12h, and obtain a precipitate, which is recorded as sample B. The sample was rapidly cooled to room temperature, centrifuged, washed three times with deionized water and absolute ethanol, and finally dispersed in deionized water and ultrasonicated for 0.5 h. Such as figure 1 As shown, the average thickness of the nanosheets of sample B is 25nm, which is the same as that of sample A, and the average particle size increases to 2.9μm. Sample B shows a typical "flower-like" microsphere structure with better sphericity and the accumulation of nanosheet The density increased sign...
example 3
[0030] Add 3g of urea into 50mL of deionized water, stir for 0.5h to fully dissolve, then add 0.25g of SDS, stir until the solution is clear, then add 0.0624g of copper sulfate and 0.026g of phosphoric acid (85wt%), stir for 0.5h and then dropwise add 0.4 g NaOH dilute solution (5wt%), continue to stir for 0.5h, the pH value of the solution is 6, add the solution into the reaction kettle, synthesize at 80°C for 12h, and obtain a precipitate, which is recorded as sample C. The sample was rapidly cooled to room temperature, centrifuged, washed three times with deionized water and absolute ethanol, and finally dispersed in deionized water and ultrasonicated for 0.5 h. Such as figure 1 As shown, compared with sample B, the overall morphology of sample C has not changed, and it is also a typical "flower ball" microsphere with good sphericity, but the average thickness of nanosheets increases to 30nm, and the average particle size of microspheres Increasing to 4 μm, the packing of ...
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