EuWo4 (OH) nanoribbon and preparation method of composite material thereof
A technology of nanobelt and tungstic acid, which is applied in the field of preparation of functional nanomaterials, can solve problems such as product impurity, and achieve the effects of good product purity, low production cost, and simple operation
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[0025] Example 1:
[0026] After mixing ammonium tungstate (42mg), thiourea (128mg), europium nitrate (20mg) and 19.44mL water, heat to dissolve, then add it to a 25mL PTFE-lined hydrothermal kettle, and put it in advance to warm up To 220°C oven, react at 220°C for 24 hours. After the reaction is over, place it at room temperature to cool down naturally. The white solid obtained by the reaction was separated by centrifugation (washed with ethanol three times, and then washed three times with water) to finally obtain the target product EuWO 4 (OH) Nanobelt. figure 1 Shown is the scanning electron micrograph of the product, which shows that the product is a ribbon-like material. image 3 It shows the X-ray single crystal diffraction pattern of the product. The peaks on the spectrum are consistent with the standard card JCPDS card No.23-0428, and there are no impurity peaks, which shows that the purity of basic europium molybdate is very high.
Example Embodiment
[0029] Example 2:
[0030] After mixing ammonium tungstate (42mg), thiourea (121mg), europium nitrate (16mg) and 19.44mL water, heat to dissolve, then add to a 25mL PTFE-lined hydrothermal kettle and put it in advance To 230°C oven, react at 230°C for 25 hours. After the reaction is over, place it at room temperature to cool down naturally. The white solid obtained by the reaction was separated by centrifugation (washed with ethanol three times, and then washed three times with water) to finally obtain the target product EuWO 4 (OH) Nanobelt.
Example Embodiment
[0031] Example 3:
[0032] After mixing ammonium tungstate (42mg), thiourea (130mg), europium nitrate (30mg) and 19.44mL water, heat to dissolve, then add it to a 25mL PTFE-lined hydrothermal kettle, and put it in advance to warm up To 210°C oven, react at 210°C for 23 hours. After the reaction is over, place it at room temperature to cool down naturally. The white solid obtained by the reaction was separated by centrifugation (washed with ethanol three times, and then washed three times with water) to finally obtain the target product EuWO 4 (OH) Nanobelt.
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