Bismuth sulfide nanomaterial with two-dimensional structure, and preparation method thereof
A technology of nanomaterials and two-dimensional structures, applied in the field of bismuth sulfide nanomaterials with two-dimensional structure and its preparation, can solve the problems of difficult preparation and toxicity of two-dimensional bismuth sulfide, and achieve excellent physiological inertia, mild conditions and simple operation process Effect
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Embodiment 1
[0029] Weigh 0.132g triphenylbismuth and 0.0739g dibenzyl disulfide, dissolve them in 8ml of absolute ethanol, and disperse them evenly with ultrasound to obtain a milky white transparent solution; weigh 0.31g of polyvinylpyrrolidone with a molecular weight of 10000, dissolve them in In 7ml of absolute ethanol, ultrasonically disperse evenly; after mixing the above two solutions evenly, transfer to a 25ml reaction kettle, seal and heat to 190°C, keep it warm for 18 hours, and then cool the reaction kettle to room temperature to obtain a black solution Centrifuge the obtained solution at 9000 rpm to obtain a black solid, which is washed with absolute ethanol and distilled water, and dried in vacuum at 50-60°C to obtain bismuth sulfide nanoparticles. In this example, the sample was washed three times with absolute ethanol and distilled water to remove the reaction residue in the sample; then the sample was vacuum-dried at 50-60° C. for 24 hours, and the product was collected for ...
Embodiment 2
[0034] Weigh 0.132g triphenylbismuth and 0.0739g dibenzyl disulfide, dissolve them in 8ml absolute ethanol, and disperse them evenly by ultrasonic to obtain a milky white transparent solution; weigh 0.3g polyvinylpyrrolidone with a molecular weight of 30000, dissolve them in In 7ml of absolute ethanol, ultrasonically disperse it evenly; after mixing the above two solutions evenly, transfer them to a 25ml reaction kettle, seal and heat to 185°C, keep it warm for 17 hours, and then cool the reaction kettle to room temperature to obtain a black solution Centrifuge the resulting solution at 9000 rpm to obtain a black solid, which is washed with absolute ethanol and distilled water and dried in vacuum at 50-60°C to obtain bismuth sulfide nanoparticles. In this example, the sample was washed three times with absolute ethanol and distilled water to remove the reaction residue in the sample; then the sample was vacuum-dried at 50-60° C. for 24 hours, and the product was collected for u...
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