Preparation method three-dimensional multistage SnO2 nanoflowers
A nanoflower, three-dimensional technology, applied in nanotechnology, tin oxide and other directions, can solve the problems of cumbersome preparation methods, environmental pollution, and impact on human health.
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Embodiment 1
[0020] 1) Weigh 0.45gSnCl 2 2H 2 O was dissolved in 20mL distilled water, stirred for 20min to obtain solution ①;
[0021] 2) Weigh 0.32g NaOH and 0.72g CTAB and dissolve in 20mL distilled water, stir for 20min to obtain solution ②;
[0022] 3) Mix the solution ① with the solution ②, and stir for 40 minutes to obtain a uniform solution ③;
[0023] 4) Transfer the solution ③ into a 50mL reaction kettle, and heat at 130°C for 24h;
[0024] 5) The product was centrifuged, washed with water and ethanol five times, dried at 60°C for 13 hours to obtain a yellow-brown product; roasted in a muffle furnace at 400°C for 4 hours to collect the yellow-brown product.
Embodiment 2
[0026] 1) Weigh 0.46gSnCl 2 2H 2 O was dissolved in 20mL distilled water and stirred for 20min to obtain a solution ④;
[0027] 2) Weigh 0.42g NaOH and 0.73g CTAB and dissolve in 20mL distilled water, stir for 20min to obtain the solution ⑤;
[0028] 3) Mix the solution ④ with the solution ⑤, and stir for 40 minutes to obtain a uniform solution ⑥;
[0029] 4) Transfer the solution ⑥ to a 50mL reaction kettle, and heat it with water at 130°C for 24h;
[0030] 5) The product was centrifuged, washed with water and ethanol five times, dried at 60°C for 13 hours to obtain a yellow-brown product; roasted in a muffle furnace at 400°C for 4 hours to collect the yellow-brown product.
Embodiment 3
[0032] For the three-dimensional multi-level SnO prepared in Examples 1 and 2 2 X-ray diffraction experiment (XRD) of nanoflower material: the phase analysis of the sample is carried out on the D / max-2500 X-ray diffractometer produced by Rigaku Corporation, the measurement conditions: graphite monochromatic detector, tube flow 100mA, CuKα radiation source , with a step width of 0.02°. Compared with the JCPDF standard spectrum (41-1445), the spectral lines of the sample are indexed, indicating that the products are all a single tetragonal SnO 2 The crystal system and XRD spectrum are as follows figure 1 , figure 2 shown.
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