Preparation method for spindle-shaped Te nano tube
A nanotube and shuttle-shaped technology, applied in the field of shuttle-shaped Te nanotube semiconductor materials and their preparation, can solve the problems of affecting industrialization, long reaction time, low yield, etc. Effect
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Embodiment 1
[0019] 0.35 mmol of Na at room temperature 2 TeO 3 Add it into 10.5mL glycerol, stir it magnetically for 1 hour, and put it into a microwave reactor with a working frequency of 2.45GHz and a power of 800W. The reactor adopts a cycle heating mode of working for 40s and stopping for 60s, and microwave heating for 2min. After cooling, it was washed alternately with ethanol and water, and dried in a vacuum oven at 60°C for 12 hours.
[0020] figure 1 is the XRD pattern of the synthesized Te nanotubes. All diffraction peaks and lattice constants are a=b=4.458 c=5.927 The diffraction peaks of the hexagonal Te are consistent, indicating that the Te synthesized by the present invention is a pure phase.
[0021] figure 2 (a) Field emission scanning electron micrograph of Te nanoscale shuttle tubes synthesized by microwave heating for 2 min; it can be seen from the figure that the nanotubes present a shuttle-shaped structure with a thick middle and thin ends, with a tube length...
Embodiment 2
[0023] 0.5 mmol of Na at room temperature 2 TeO 3 Add it into 15mL glycerol, stir it magnetically for 1 hour, put it into a microwave reactor with a working frequency of 2.45GHz and a power of 800W, and the reactor adopts a cycle heating mode of working for 40s and stopping for 60s, and microwave heating for 7min. After cooling, it was washed alternately with ethanol and water, and dried in a vacuum oven at 60°C for 12 hours.
[0024] image 3 (a) The field emission scanning electron micrograph of the Te nanoscale shuttle tube synthesized by microwave heating for 7 min; it can be seen from the figure that the shuttle structure is more obvious, some of the tube openings are broken, and the length of the tube, the width of the tube opening, and the thickness of the tube wall are similar for figure 2 (a) None have changed significantly; from image 3 (b) transmission electron micrograph, it can be confirmed that what the present invention synthesizes is a spindle-shaped tubu...
Embodiment 3
[0026] 0.55 mmol of Na at room temperature 2 TeO 3 Add it into 16.5mL glycerol, stir it magnetically for 1 hour, and put it into a microwave reactor with a working frequency of 2.45GHz and a power of 800W. The reactor adopts a cycle heating mode of working for 40s and stopping for 60s, and microwave heating for 15min. After cooling, it was washed alternately with ethanol and water, and dried in a vacuum oven at 60°C for 12 hours.
[0027] Figure 4 (a) Field emission scanning electron micrograph of the Te nanoscale shuttle tube synthesized by microwave heating for 15 min; it can be seen from the figure that the shuttle structure is obvious, part of the tube opening is broken, and a small amount of Te nanoparticles grow on the surface of the nanotube , the structural parameters of the nanotubes also do not change significantly; from Figure 4 (b) transmission electron micrograph, it can be confirmed that what the present invention synthesizes is a tubular structure, and ther...
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Abstract
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