A kind of preparation method of near-infrared stannous sulfide nanoparticles
A technology of stannous sulfide and nanoparticles, which is applied in the field of material chemistry, can solve problems such as limited applications, and achieve the effects of simple preparation steps, small quantities, and great application prospects
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Embodiment 1
[0020] Weigh 0.05mmol of phenanthroline tin and 0.035mmol of dimethyl disulfide into 2g of octyl mercaptan, 5g of octadecylamine and 3g of oleic acid mixture, under the protection of an argon atmosphere, stir evenly, then stir Raise the temperature to 110°C and react for 155min. Cool naturally, add 60mL of acetone after cooling down to room temperature, mix well and centrifuge, repeat twice, and then disperse in toluene to obtain SnS nanoparticles with monodisperse fluorescence peak at 1035 nm. The morphology of the particles is as follows: figure 1 As shown, the fluorescence spectrum as figure 2 shown.
Embodiment 2
[0022] Take by weighing 0.35mmol of phenanthroline tin and 0.35mmol of dimethyl disulfide and join in the oleic acid mixed solution of 1g octyl mercaptan, 7.5g octadecylamine and 3g, under the protection of argon atmosphere, stir evenly, then Stir and heat up to 1450°C, and react for 120 minutes. Cool naturally, add 60 mL of acetone after cooling down to room temperature, mix well and centrifuge, repeat twice, and then disperse in toluene to obtain monodisperse SnS nanoparticles.
Embodiment 3
[0024] Weigh 0.85mmol of phenanthroline tin and 2.32mmol of dimethyl disulfide and join in 5g of octyl mercaptan, 5g of octadecylamine and 5g of oleic acid mixture, under the protection of argon atmosphere, stir evenly, then stir Raise the temperature to 175°C and react for 20 minutes. Cool naturally, add 60 mL of acetone after cooling down to room temperature, mix well and centrifuge, repeat twice, and then disperse in toluene to obtain monodisperse SnS nanoparticles.
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