Direct synthesis process of hydrophobic nanometer silica line with ZnS powder
A technology of silica and nanowires, which is applied in the field of nanomaterials, can solve problems such as complex preparation procedures, high cost, and limited application range, and achieve the effects of simple equipment process, high hydrophobicity, and low price
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[0026] Example 1
[0027] Place a ceramic boat containing 3 clean silicon wafers (rectangular silicon wafers 1×1 cm) in the center of a horizontal quartz tube furnace, and fix 5 g of solid ZnS powder on the side of the quartz tube where the gas flows. The temperature was increased to 1350°C at a rate of 10°C / min. At the beginning of the temperature rise, argon with a gas flow rate of 50ml / min was introduced; at the reaction temperature of 1350℃, the gas flow rate in the cavity was maintained, and the reaction continued for 2 hours. After the reaction, the reaction product was taken out and a large amount of A sample of disordered silica nanowires is shown in Figure 1. It can be seen that a large number of disordered silica nanowires are produced on the surface of the silicon wafer. The synthesized silica nanowires and 0.05ml of perfluorosilane were sealed and put into a stainless steel tank, and the evaporation reaction was carried out at 150 degrees for 3.0 hours to obtain superh...
Example Embodiment
[0028] Example 2
[0029] Place a ceramic boat containing 3 clean silicon wafers (rectangular silicon wafers 1×1 cm) in the center of a horizontal quartz tube furnace, and fix 5 g of solid ZnS powder on the side of the quartz tube where the gas flows. The temperature was increased to 1350°C at a rate of 10°C / min. At the beginning of the temperature rise, argon with a gas flow of 500ml / min was introduced; at the reaction temperature of 1350℃, the gas flow in the cavity was maintained, and the reaction continued for 3 hours. After the reaction, the reaction product was taken out and a large amount of Disordered silica nanowire sample. The synthesized silica nanowires and 0.1ml of perfluorosilane were sealed and put into a stainless steel tank, and the vapor deposition reaction was carried out at 150 degrees for 3.0 hours to obtain a superhydrophobic two with a contact angle of 145 degrees. The silicon oxide nanowires are shown in Fig. 2. As can be seen in the figure, the silicon dio...
Example Embodiment
[0030] Example 3
[0031] Place a ceramic boat containing 3 clean silicon wafers (rectangular silicon wafers 1×1 cm) in the center of a horizontal quartz tube furnace, and fix 5 g of solid ZnS powder on the side of the quartz tube where the gas flows. The temperature was increased to 1350°C at a rate of 10°C / min. At the beginning of the temperature rise, argon with a gas flow of 200ml / min was introduced; at the reaction temperature of 1350℃, the gas flow in the cavity was maintained, and the reaction continued for 5 hours. After the reaction, the reaction product was taken out and a large amount of Disordered silica nanowire sample. The synthesized silica nanowires and 0.2ml of perfluorosilane were sealed and put into a stainless steel tank, and the vapor deposition reaction was carried out at 150 degrees for 3.0 hours to obtain a superhydrophobic second with a contact angle greater than 140 degrees. Silicon oxide nanowires.
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