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Metal element-doped molybdenum disulfide film material and preparation method thereof

A metal element, molybdenum disulfide technology, applied in the fields of molybdenum sulfide, chemical instruments and methods, oxidized water/sewage treatment, etc., can solve the problems of high process requirements, long time-consuming and complicated molybdenum disulfide nanosheets, and achieve process time The effect of shortening, low cost and simple process

Inactive Publication Date: 2019-03-15
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the traditional hydrothermal method takes a long time to prepare molybdenum disulfide nanosheets, and the growth of molybdenum disulfide materials on substrate materials is usually physical vapor deposition or chemical vapor deposition, which requires high process requirements and is relatively complicated.

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  • Metal element-doped molybdenum disulfide film material and preparation method thereof
  • Metal element-doped molybdenum disulfide film material and preparation method thereof
  • Metal element-doped molybdenum disulfide film material and preparation method thereof

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preparation example Construction

[0036] As an example, the preparation method of the doped molybdenum disulfide film is further described, including: cleaning the titanium or titanium alloy and placing it in the reactor, using (a) sulfur source, (b) molybdenum source, (c) The mixed aqueous solution or hydrosol of metal element or corresponding metal soluble salt is used as hydrothermal medium to carry out hydrothermal treatment on titanium or titanium alloy. Wherein the reaction temperature is 180-220° C., the reaction time is 4-8 hours, and it is best to keep the filling degree of the reactor at 50-75% during the whole process.

[0037] In the present invention, the metal element-doped molybdenum disulfide thin film grows in situ on the surface of the metal substrate (titanium or titanium alloy) through a hydrothermal reaction, wherein the metal element is evenly doped in the layered molybdenum disulfide nanosheets . The synthesis method (one-step hydrothermal process) of the present invention has the advanta...

Embodiment 1

[0040] Treat a pure titanium sheet with a thickness of 1mm and a length and width of 10mm with 10% oxalic acid solution at 80°C for 2 hours, then rinse it with a large amount of deionized water, and then use alcohol and deionized water to clean it ultrasonically. 15min. Then carry out hydrothermal treatment, add 0.6g CS(NH 2 ) 2 , 0.3g (NH 4 ) 6 Mo 7 o 24 ·6H 2 O, after ultrasonic dissolution, transferred to a 100mL PPL hydrothermal reaction kettle, and then placed an aluminum foil (0.035g) with a length of 100mm and a width of 10mm on the inner wall of the reaction kettle, and the hydrothermal temperature was 200°C for 5h. Rinse with plenty of deionized water and sonicate after hydrothermal treatment.

[0041] figure 1 (o-Ti-MoS 2 -Al) is the low magnification ( figure 1 middle b) and high power ( figure 1 Middle a) Scanning electron microscope picture, as can be seen from the figure, the surface after treatment presents a sheet-like nanostructure, the length of th...

Embodiment 2

[0043] A pure titanium sheet with a thickness of 1 mm and a length and width of 10 mm was ultrasonically cleaned with alcohol and deionized water in sequence, each time for 15 minutes. Then carry out hydrothermal treatment, add 0.6g CS(NH 2 ) 2 , 0.28g (NH 4 ) 6 Mo 7 o 24 ·6H 2 O, after ultrasonic dissolution, transferred to a 100mL PPL hydrothermal reaction kettle, and then placed an aluminum foil (0.035g) with a length of 100mm and a width of 10mm on the inner wall of the reaction kettle, and the hydrothermal temperature was 200°C for 4h. Rinse with plenty of deionized water and sonicate after hydrothermal treatment. The molar ratio of aluminum and molybdenum disulfide is 0.23:1.

[0044] Figure 4 (Ti-MoS 2 -Al 2 ) is a low magnification ( Figure 4 middle b) and high power ( Figure 4 Middle a) Scanning electron microscope picture, as can be seen from the figure, the surface after treatment presents a sheet-like nanostructure, the length of the nanosheets is ab...

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Abstract

The invention relates to a metal element-doped molybdenum disulfide film material and a preparation method thereof. The metal element-doped molybdenum disulfide film material comprises metal element-doped molybdenum disulfide nanosheets grown in situ and vertically arranged on a surface of a metal substrate, wherein the metal element comprises at least one of aluminum, magnesium and manganese, wherein the amount of the metal elements doped in the metal element-doped molybdenum disulfide film material is 15-40 mol%, preferably 20-40 mol%. The metal element-doped molybdenum disulfide film material is doped with metal elements to be beneficial for further activating molybdenum disulfide nanosheets, can improve degradation of organic dyes under zero light, and has application potential and usevalue in water pollution control.

Description

technical field [0001] The invention relates to a metal element-doped molybdenum disulfide film material and a preparation method thereof, in particular to a vertically arranged doped molybdenum disulfide film material obtained by in-situ growth through a one-step hydrothermal reaction, which belongs to the surface modification technology of metal materials field. Background technique [0002] As a typical transition metal chalcogenide, molybdenum disulfide has a layered structure similar to graphene, and the layers are connected to each other by covalent bonds, and its force is much stronger than the van der Waals force between layers (Chemical Society Reviews2015, 44:2744-2756). Compared with ordinary bulk molybdenum disulfide, nano-molybdenum disulfide has a series of unique properties such as large specific surface area, many chemical reaction sites, and high near-infrared absorption. It shows excellent performance in fields such as hydrogen production (Rsc Advances 20...

Claims

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Application Information

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IPC IPC(8): C01G39/06C02F1/72C02F101/30
CPCC01G39/06C01P2002/52C01P2002/80C01P2004/03C02F1/72C02F2101/308
Inventor 曹辉亮唐楷为刘宣勇
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI