Preparation method of boron-nitrogen double doped molybdenum disulfide fluorescent nano material
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A technology of fluorescent nanomaterials and molybdenum disulfide, applied in the field of fluorescent nanomaterials, can solve problems such as high leakage current, restricted development, etc., and achieve the effects of easy control, low environmental pollution, and easy availability of raw materials
Active Publication Date: 2015-03-25
XIANGTAN UNIV
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However, graphene is a zero-bandgap material and has a high leakage current, which greatly limits its further development in micro-nano electronoptics.
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Embodiment 1
[0029] (1) Put 0.4g molybdenum disulfide, 2g boric acid, and 2g melamine into a beaker together, use an ultrasonic machine to sonicate for 1 hour, the ultrasonic power is 140W, react sol-gel at 70°C for 5 hours, dry, and grind the obtained solid , that is, the powder mixed with the three.
[0030] (2) Put the powder obtained in step (1) in a porcelain boat, and under the protection of nitrogen, raise the temperature to 400°C at 5°C / min, keep it warm for 2 hours and then cool down to room temperature. The crude product was washed twice with water and ethanol. After drying, the molybdenum disulfide fluorescent nanometer material doped with boron and nitrogen can be obtained.
[0031] figure 1 The XPS result shows that embodiment 1 gained nanometer material is doped successfully, figure 2 The ultraviolet and fluorescence intensity test results show that the molybdenum disulfide after the gain of embodiment 1 has fluorescence, image 3 The TEM image of FIG. 4 and the AFM imag...
Embodiment 2
[0033] (1) Add 0.6g molybdenum disulfide, 1g boric acid, and 2.5g melamine into a beaker together, use an ultrasonic machine to sonicate for 2 hours, the ultrasonic power is 140W, react sol-gel at 80°C for 10 hours, dry the obtained solidGrind to get the powder mixed with the three.
[0034] (2) Put the powder obtained in step (1) in a porcelain boat, and under the protection of nitrogen, raise the temperature to 400°C at 5°C / min, keep it warm for 2 hours and then cool down to room temperature. The crude product was washed twice with water and ethanol. After drying, the molybdenum disulfide fluorescent nanometer material doped with boron and nitrogen can be obtained.
Embodiment 3
[0036] (1) Add 0.5g molybdenum disulfide, 1.81g boric acid, and 1g melamine into a beaker together, use an ultrasonic machine to sonicate for 4 hours, the ultrasonic power is 140W, react sol-gel at 60°C for 2 hours, dry the obtained solidGrind to get the powder mixed with the three.
[0037] (2) Put the powder obtained in step (1) in a porcelain boat, and under the protection of nitrogen, raise the temperature to 500°C at 10°C / min, keep it warm for 2 hours and then lower it to room temperature. The crude product was washed twice with water and ethanol. After drying, the molybdenum disulfide fluorescent nanometer material doped with boron and nitrogen can be obtained.
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Abstract
The invention discloses a preparation method of a boron-nitrogen double doped molybdenum disulfide fluorescent nano material, and belongs to the technical field of preparation of nano fluorescent materials. The preparation method comprises the following steps: mixing molybdenum disulfide serving as a raw material with boric acid serving as a boron source and melamine serving as a nitrogen source; performing ultrasonic stripping; and dopingboron, nitrogen and molybdenum disulfide at a certain temperature to obtain a molybdenum disulfide nano material with fluorescent light. The double doped material prepared by the preparation method disclosed by the invention has an ultrathin two-dimensional laminated structure and has strong fluorescence intensity, so that the double doped material is an ideal fluorescent material. The preparation method disclosed by the invention is low-price and easily available in raw material, mild in reaction condition, simple to operate, easy to control, good in reproducibility and little in environmental pollution, so that the preparation method has very good application prospects in the aspects of fluorescent materials, photoelectric materials and the like.
Description
technical field [0001] The invention belongs to the field of fluorescent nanometer materials, and relates to a method for preparing a molybdenum disulfide fluorescent material double-doped with boron and nitrogen. Background technique [0002] The unique structure of two-dimensional graphene material makes it exhibit excellent properties such as low resistivity, high carrier mobility, high thermal conductivity and high light transmittance, so it is widely used in microelectronics, energy storage devices, sensors, and flat panel displays. It has broad application prospects in many fields such as solar cells and solar cells. Since its discovery, great efforts have been made in the preparation and application of graphene. However, graphene is a zero-bandgap material and has a high leakage current, which greatly limits its further development in micro-nano electronoptics. In recent years, two-dimensional transition metal chalcogenides have been discovered. Molybdenum disulfi...
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