Bi2MoO6 quantum dots and preparation method and application thereof
A technology of quantum dots and reactions, applied in the field of Bi2MoO6 quantum dots and its preparation, can solve the problems of difficult preparation and complex process of quantum dots, and achieve the effect of simple preparation process, small size, and easy industrialized and expanded production
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Embodiment 1
[0021] Embodiment 1, Bi in the present embodiment 2 MoO 6 The preparation method of quantum dot is carried out according to the following steps:
[0022] Add 0.5mmol bismuth nitrate pentahydrate and 2mmol sodium oleate into 20mL water, stir at a rate of 500r / m for 1h, then add 0.25mmol sodium molybdate, stir thoroughly at a rate of 500r / m for 1h, transfer to 100mL polytetrafluoroethylene In a vinyl fluoride-lined autoclave, conduct a hydrothermal reaction at 180°C for 12 hours, collect the precipitate by centrifugation, wash three times with water, then three times with absolute ethanol, and dry at 60°C for 12 hours to obtain Bi 2 MoO 6 quantum dots.
[0023] figure 1 for Bi 2 MoO 6 X-ray powder diffraction test pattern of quantum dots. It can be seen from the figure that the X-ray derivative peak of the prepared solid powder is completely consistent with the standard card JCPDS: 84-0787, indicating that the obtained solid powder is pure Bi 2 MoO 6 crystals, figure ...
Embodiment 2
[0025] Embodiment 2, Bi in the present embodiment 2 MoO 6 The preparation method of quantum dot is carried out according to the following steps:
[0026] Add 1mmol bismuth nitrate pentahydrate and 2mmol sodium oleate into 20mL water, stir at a rate of 800r / m for 0.5h, then add 0.5mmol sodium molybdate, stir thoroughly at a rate of 800r / m for 1h, transfer to 100mL polytetrafluoroethylene In a vinyl fluoride-lined autoclave, conduct a hydrothermal reaction at 200°C for 10 hours, collect the precipitate by centrifugation, wash three times with water and absolute ethanol, and dry at 60°C for 24 hours to obtain Bi 2 MoO 6 quantum dots.
[0027] Get the Bi prepared in this embodiment 2 MoO 6 15 mg of quantum dots, dispersed in 1.5 mL of water, added 10.4 microliters of benzyl alcohol, passed oxygen to discharge the air in the reaction bottle, sealed, stirred at a speed of 1000 r / m for 40 m, then turned on a 300 W xenon lamp for irradiation, and filtered the reaction bottle with...
Embodiment 3
[0028] Embodiment 3, Bi in the present embodiment 2 MoO 6 The preparation method of quantum dot is carried out according to the following steps:
[0029] Add 0.5mmol bismuth nitrate pentahydrate and 1mmol sodium oleate into 40mL water, stir at a rate of 600r / m for 1h, then add 0.25mmol sodium molybdate, stir thoroughly at a rate of 600r / m for 2h, transfer to 100mL polytetrafluoroethylene In a vinyl fluoride-lined autoclave, conduct a hydrothermal reaction at 160°C for 24 hours, collect the precipitate by centrifugation, wash three times with water and absolute ethanol, and dry at 60°C for 15 hours to obtain Bi 2 MoO 6 quantum dots.
[0030] Get the Bi prepared in this embodiment 2 MoO 6Quantum dots 17mg, dispersed in 1.5mL water, add 10.4 microliters of benzyl alcohol, pass through oxygen to discharge the air in the reaction bottle, seal it, stir at a speed of 800r / m for 30m, then turn on a 300W xenon lamp to irradiate, use a filter to filter In addition to the ultraviol...
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