Preparation method of tungsten disulfide/indium sulfide composite nano material

A technology of composite nanomaterials and tungsten disulfide, applied in chemical instruments and methods, chemical/physical processes, water treatment of special compounds, etc.

Active Publication Date: 2020-10-27
NANTONG VOCATIONAL COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] So far, no reports have been found to prepare tungsten disulfide / indium sulfide composite nanomaterials in one step by solvothermal method. Tungsten disulfide / indium sulfide composite nanomaterials organically combine the advantages of both tungsten disulfide and indium sulfide The photoelectric synergy between the two has enhanced its photocatalytic activity, so the development of tungsten disulfide / indium sulfide composite nanomaterials has broad application prospects

Method used

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  • Preparation method of tungsten disulfide/indium sulfide composite nano material
  • Preparation method of tungsten disulfide/indium sulfide composite nano material

Examples

Experimental program
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Effect test

Embodiment 1

[0034] Weigh 3mmol of tungsten hexachloride in 30mL of absolute ethanol, disperse it ultrasonically, and continue stirring for 30min until the solid is completely dissolved to form solution A;

[0035] Weigh 3mmol indium nitrate and dissolve it in 30mL absolute ethanol, stir for 30min to form solution B;

[0036] Slowly add solution B dropwise to solution A, stir for 30min, add 15.75mmol thioacetamide and 1g diallylmethyl dodecyl ammonium bromide, stir for 2h and then transfer to a Teflon-lined In the reaction kettle, add absolute ethanol to about 80% of the liquid level of the reaction kettle, place it in an oven at 180°C for solvothermal reaction for 24 hours, and the obtained product is centrifuged, washed with deionized water and absolute ethanol three times respectively, and the 60 ℃ vacuum drying to obtain a tungsten disulfide / indium sulfide composite nanomaterial with a tungsten-indium molar ratio of 1:1. The XRD pattern of this tungsten disulfide / indium sulfide compos...

Embodiment 2

[0038] Weigh 3mmol of tungsten hexachloride in 30mL of absolute ethanol, disperse it ultrasonically, and continue stirring for 30min until the solid is completely dissolved to form solution A;

[0039] Weigh 6mmol of indium nitrate and dissolve it in 30mL of absolute ethanol, stir for 30min to form solution B;

[0040] Slowly add solution B dropwise to solution A, stir for 30min, add 22.5mmol thioacetamide and 1g of diallylmethyl dodecyl ammonium bromide, stir for 2h and transfer to a polytetrafluoroethylene-lined In the reaction kettle, add absolute ethanol to about 80% of the liquid level of the reaction kettle, place it in an oven at 180°C for solvothermal reaction for 24 hours, and the obtained product is centrifuged, washed with deionized water and absolute ethanol three times respectively, and the 60 °C vacuum drying to obtain a tungsten-indium molar ratio of 1:2 tungsten disulfide / indium sulfide composite nanomaterials.

Embodiment 3

[0042] Weigh 1.5mmol of tungsten hexachloride in 30mL of absolute ethanol, ultrasonically disperse, and continue to stir for 30min until the solid is completely dissolved to form solution A;

[0043] Weigh 60mmol indium nitrate and dissolve it in 300mL absolute ethanol, stir for 30min to form solution B;

[0044] Slowly add solution B to solution A dropwise, stir for 30min, add 15.75mmol thioacetamide and 0.5g diallylmethyl dodecyl ammonium bromide, stir for 2h and then transfer to a polytetrafluoroethylene liner Add absolute ethanol to about 80% of the liquid level of the reactor, place it in an oven at 120°C for solvothermal reaction for 48 hours, and centrifuge the obtained product, wash with deionized water and absolute ethanol three times respectively, Vacuum drying at 60°C yielded a tungsten-indium molar ratio of 0.025:1 tungsten disulfide / indium sulfide composite nanomaterial.

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Abstract

The invention discloses a preparation method of a tungsten disulfide / indium sulfide composite nano material. The method comprises the following steps of: (1) dissolving tungsten hexachloride in an organic solvent until the solid is completely dissolved to form a solution A; (2) dissolving indium nitrate in an organic solvent to form a solution B; and (3) dropwise adding the solution B into the solution A, performing stirring, adding thioacetamide and ammonium diallyl methyl dodecyl bromide, and carrying out solvothermal reaction at 120-200DEG C to obtain the tungsten disulfide / indium sulfide composite nano material. The preparation steps are simple, the cost is low, the advantages of tungsten disulfide and indium sulfide are organically combined, the tungsten disulfide and indium sulfide generate a photoelectric synergistic effect, and the photocatalytic activity is enhanced.

Description

technical field [0001] The invention belongs to the technical field of preparation methods of photocatalytic materials, and in particular relates to a preparation method of tungsten disulfide / indium sulfide composite nanomaterials. Background technique [0002] Since the beginning of the 20th century, water pollution caused by toxic and refractory organic pollutants (such as halogenated substances, pesticides, dyes) has caused a series of environmental problems. The pollution of environmental water and air pollution has become an issue that affects human life and major health problems. Traditional water treatment methods, such as: adsorption method, coagulation method, chemical precipitation method, membrane filtration separation, extraction and other methods still have certain difficulties in actual treatment, and the treatment effect of traditional methods is not very ideal. Using solar energy through photocatalysis to degrade macromolecular organic pollutants into enviro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/047C02F1/30C02F101/38
CPCB01J27/047C02F1/30C02F2101/40C02F2305/10B01J35/39Y02W10/37
Inventor 周杰朱蓓蓓吴斌姜敏周道丁邦琴黄徽
Owner NANTONG VOCATIONAL COLLEGE
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