Photothermal conversion textile based on self-assembled molybdenum disulfide nanospheres and preparation method of photothermal conversion textile

A light-to-heat conversion and molybdenum disulfide technology, which is applied in the fields of molybdenum sulfide, textiles and papermaking, nanotechnology, etc., can solve the problems of complicated process and unfavorable wide application of loaded products

Active Publication Date: 2021-04-20
JIANGSU NADN SCI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the disadvantages of the existing textile products in the application of near-infrared light-to-heat conversion that the load product process is complex and unfavorable for wide application, and provides a low-cost, simple and efficient liquid-phase hydrothermal method to achieve high light-to-heat conversion efficiency and small size. Preparation of Ultra-small and Uniform Molybdenum Disulfide Hollow Nanospheres and Its Application in Textiles

Method used

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  • Photothermal conversion textile based on self-assembled molybdenum disulfide nanospheres and preparation method of photothermal conversion textile
  • Photothermal conversion textile based on self-assembled molybdenum disulfide nanospheres and preparation method of photothermal conversion textile
  • Photothermal conversion textile based on self-assembled molybdenum disulfide nanospheres and preparation method of photothermal conversion textile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Accurately weigh 0.3 g of anhydrous sodium molybdate; accurately weigh 0.8 g of L-cysteine; add the two into 100ml of deionized water, fully dissolve, continue to stir for 24 hours, and centrifuge to obtain the precursor substance; Disperse it in 60ml of deionized water, transfer it to a polytetrafluoroethylene hydrothermal kettle, react at 180°C for 20 h, and obtain a black precipitate; centrifuge the precipitate, wash it with water and alcohol several times, and dry it in vacuum. Molybdenum disulfide hollow nanospheres were obtained.

[0024] See attached figure 1 The transmission electron microscope image of the molybdenum disulfide hollow nanospheres prepared in Example 1 shows that the radial size of the molybdenum disulfide hollow nanospheres is about 270 nm, with uniform size and good dispersion.

[0025] See attached figure 2 , is the X-ray diffraction pattern of molybdenum disulfide hollow nanospheres prepared in this example, and the results show that the p...

Embodiment 2

[0031] Accurately weigh 0.3 g of anhydrous sodium molybdate; accurately weigh 0.8 g of dimethyl sulfoxide; add the two into 100ml of deionized water, fully dissolve, continue to stir for 24 hours, and centrifuge to obtain the precursor substance; Disperse it in 60ml of deionized water, transfer it to a polytetrafluoroethylene hydrothermal kettle, react at 180°C for 18h, and obtain a black precipitate; centrifuge the precipitate, wash it with water and alcohol several times, and dry it in vacuum to obtain Molybdenum disulfide hollow nanospheres.

[0032] The prepared molybdenum disulfide was dispersed into a nano slurry, and the cotton textile was treated according to the dosage of 1.5%, to obtain a self-heating cotton textile fabric.

Embodiment 3

[0034] Accurately weigh 0.3 g of anhydrous ammonium heptahydrate ammonium molybdate; accurately weigh 0.8 g of thiourea; add the two into 100ml deionized water, fully dissolve, then continue to stir for 24 hours, and centrifuge to obtain the precursor substance; Disperse it in 60ml of deionized water, transfer it to a polytetrafluoroethylene hydrothermal kettle, react at 180°C for 22 h, and obtain a black precipitate; centrifuge the precipitate, wash it with water and alcohol several times, and dry it in vacuum to obtain Molybdenum disulfide hollow nanospheres.

[0035] The prepared molybdenum disulfide was dispersed into nano pulp, and the cotton textile was treated according to the dosage of 3%, to obtain the self-heating cotton textile fabric.

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Abstract

The invention relates to a photothermal conversion textile based on self-assembled molybdenum disulfide nanospheres and a preparation method of the photothermal conversion textile. The preparation method comprises the following steps of mixing a soluble molybdenum salt solution with a soluble sulfur source solution, fully dissolving, stirring at the temperature of 20-50 DEG C and the humidity of 60-80% in a sealed state to obtain a precipitation phase, centrifuging, washing with water, washing with alcohol, and drying in vacuum to obtain a molybdenum disulfide hollow nanosphere precursor, wherein the molar ratio x of molybdenum ions to a sulfur source is more than 1 / 20 and less than 1 / 2; dispersing the precursor in deionized water, and carrying out hydrothermal reaction to obtain the photothermal conversion material based on the molybdenum disulfide nanospheres; and treating the textile with the photothermal conversion material to obtain the textile with the photothermal conversion function. Molybdenum disulfide hollow nanospheres are prepared by adopting a hydrothermal method and have an excellent light absorption effect, so that textiles realize spontaneous heating under natural sunlight; and the preparation process is simple and rapid, the yield is relatively high, and industrial production and application in the textile field are facilitated.

Description

technical field [0001] The invention belongs to the technical field of material preparation and application, and relates to a preparation method of molybdenum disulfide hollow nanospheres and their application on textiles. Background technique [0002] In recent years, transition-metal dichalcogenides (TMDCs) molybdenum disulfide (MoS2), as an emerging nano-two-dimensional material, has a large specific surface area, abundant surface / edge atoms, and diverse physical properties. However, the van der Waals force between the sheets makes transition metal dichalcogenide nanomaterials easy to agglomerate during the electrode preparation process, thereby reducing the surface area of ​​the material in contact with the electrolyte. , reducing the electrochemical performance. Constructing transition metal dichalcogenide (3D TMD) nanomaterials with three-dimensional structure at the nanoscale is an effective way to solve the above problems. In this structure, the agglomeration of ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/51C01G39/06B82Y40/00D06M101/06
Inventor 郑敏王作山曹元鸣
Owner JIANGSU NADN SCI TECH CO LTD
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