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Method for preparing g-C3N4/MoS2 nanocomposite with vulcanizing sintering method

A nano-composite material and sintering technology, which is applied in the field of preparing g-C3N4/MoS2 nano-composite materials, can solve the problems of complicated heterojunction process, low yield, inability to produce and apply, etc. The effect of preventing agglomeration

Inactive Publication Date: 2017-04-26
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the hydrothermal preparation of g-C 3 N 4 / MoS 2 The heterojunction process is cumbersome and the yield is low, so it cannot be mass-produced and applied

Method used

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  • Method for preparing g-C3N4/MoS2 nanocomposite with vulcanizing sintering method
  • Method for preparing g-C3N4/MoS2 nanocomposite with vulcanizing sintering method
  • Method for preparing g-C3N4/MoS2 nanocomposite with vulcanizing sintering method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Mixing: Weigh 30 g of thiourea and 0.5 g of molybdenum trioxide, put the two in a ball mill jar and pass through an inert gas nitrogen ball mill for 10 hours to make them fully mixed and refine the particles to obtain off-white powder.

[0022] (2) Sintering: put the off-white powder obtained in step (1) in a corundum crucible with a lid, place it in a tube furnace with argon, raise the temperature to 600°C at a heating rate of 5°C / min, and keep it warm for 2h , naturally cooled to room temperature to obtain gray-black powder, which is g-C 3 N 4 / MoS 2 nanocomposites.

[0023] like figure 1 The X-ray diffraction pattern shown, where g-C 3 N 4 The characteristic peaks of the complex are in good agreement with the corresponding positions in the complex, and there are no other miscellaneous peaks, which proves that the g-C prepared by this method 3 N 4 / MoS 2 The nanoheterojunction has a very high purity.

[0024] like figure 2 As shown, the g-C prepared by ...

Embodiment 2

[0027] (1) Mixing: Weigh 30 g of thiourea and 0.5 g of molybdenum trioxide, put the two in a ball mill jar and pass through an inert gas nitrogen ball mill for 10 hours to make them fully mixed and refine the particles to obtain off-white powder.

[0028] (2) Sintering: put the off-white powder obtained in step (1) in a corundum crucible with a lid, place it in a tube furnace with argon, raise the temperature to 650°C at a heating rate of 5°C / min, and keep it warm for 2h , naturally cooled to room temperature to obtain gray-black powder, which is g-C 3 N 4 / MoS 2 nanocomposites.

Embodiment 3

[0030] (1) Mixing: Weigh 30 g of thiourea and 0.5 g of molybdenum trioxide, put the two in a ball mill jar and pass through an inert gas nitrogen ball mill for 10 hours to make them fully mixed and refine the particles to obtain off-white powder.

[0031](2) Sintering: put the off-white powder obtained in step (1) in a corundum crucible with a lid, place it in a tube furnace with argon, raise the temperature to 550°C at a heating rate of 5°C / min, and keep it warm for 2h , naturally cooled to room temperature to obtain gray-black powder, which is g-C 3 N 4 / MoS 2 nanocomposites.

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Abstract

The invention provides a method for preparing a g-C3N4 / MoS2 nanocomposite with a vulcanizing sintering method. The method comprises steps as follows: (1), mixing: thiourea and molybdenum trioxide are weighed and are placed in a ball milling tank to be subjected to ball milling, so that thiourea and molybdenum trioxide are mixed sufficiently, and grey white powder is obtained; (2), sintering: the grey white powder obtained in the step (1) is placed in a corundum crucible, the corundum crucible is put in a tube furnace with introduction of inert gas, the grey white powder is heated to 550-650 DEG C, subjected to heat preservation and then naturally cooled to the room temperature, and grey black powder is obtained and is the g-C3N4 / MoS2 nanocomposite. The binding efficiency of thiourea and molybdenum trioxide can be improved by the aid of g-C3N4 / MoS2 heterojunction prepared through high-temperature vulcanization by the tube furnace, and meanwhile, oxidation resistance, deliquescence resistance and heavy load resistance of MoS2 as a lubricant can be greatly improved when MoS2 is modified with g-C3N4.

Description

technical field [0001] The invention relates to the field of nanocomposite materials, in particular to a g-C prepared by vulcanization and sintering 3 N 4 / MoS 2 Nanocomposite approach. Background technique [0002] Currently, transition metal chalcogenides MX 2 (M=Mo, W, Nb, etc.; X=S, Se, Te), due to their unique physicochemical properties and novel structures, have received extensive attention and intensive research, and these substances are widely used as lithium-ion battery electrodes , lubricating oil additives, new catalysts and thermoelectric materials, among which MoS 2 As an important member of transition metal chalcogenides, it has many peculiar properties due to its special hexagonal layered structure. In MoS 2 In the crystal structure of S-Mo-S, the S-Mo-S layer is bonded by strong chemical bonds, and the layers are bonded by weak van der Waals force. The layers are easily peeled off, with good anisotropy and low friction. coefficient. MoS with nanostruct...

Claims

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Application Information

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IPC IPC(8): C01G39/06B82Y30/00B82Y40/00C10M125/00C10N30/10
CPCC01G39/06C01P2002/01C01P2002/72C01P2004/03C01P2004/64C01P2006/80C10M125/00C10M2201/066C10N2030/10
Inventor 李长生张帅董金泽李剑锋陈林波
Owner JIANGSU UNIV
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