Preparation method of ZnS nanosheets

A nanosheet and suspension technology, applied in nanotechnology, zinc sulfide and other directions, can solve the problems of high energy consumption, complex process, low yield, etc., and achieve the effects of low energy consumption, simple process and low cost

Pending Publication Date: 2019-07-09
CHANGSHA UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method not only consumes a lot of energy, but t

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  • Preparation method of ZnS nanosheets
  • Preparation method of ZnS nanosheets
  • Preparation method of ZnS nanosheets

Examples

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Example Embodiment

[0038] The present invention provides a method for preparing ZnS nanosheets, which includes the following steps:

[0039] S1. Disperse the ZnS-(L)n precursor in water to obtain a suspension;

[0040] S2. Place the suspension under light, continuously stir and react within a certain temperature;

[0041] S3. Wash, separate and precipitate the reacted solution, and dry the precipitate to obtain ZnS nanosheets;

[0042] Wherein, L in the ZnS-(L)n is a compound containing a monoamino group or a polyamino group, and n is 0.5-1.

[0043] The present invention does not have special restrictions on the source of all raw materials, as long as they are commercially available.

[0044] The L in the ZnS-(L)n is an organic compound containing an amino functional group well known to those skilled in the art, and there is no special limitation. The L in the present invention is preferably ethylene diamine (en), cyclohexane One or more of amine and o-phenylenediamine, more preferably ethylenediamine; n...

Example Embodiment

[0054] Example 1

[0055] Weigh homemade 5mg ZnS(en) 0.5 The precursor was dispersed in 10 mL of water to obtain a suspension; the suspension was placed under a low-pressure mercury lamp and irradiated for 2 hours. During the irradiation, the suspension was continuously stirred and the temperature of the reaction system was kept at room temperature; then deionized water and The ethanol is washed, separated, the precipitate is collected, and dried to obtain a ZnS nanosheet sample.

Example Embodiment

[0056] Example 2

[0057] Weigh 200mg homemade ZnS(en) 0.5 The precursor was dispersed in 200 mL of water to obtain a suspension; the obtained suspension was placed under a low-pressure mercury lamp to irradiate for 24 hours. During the irradiation, the suspension was continuously stirred and the temperature of the reaction system was kept at room temperature; then deionized water and The ethanol is washed, separated, the precipitate is collected, and dried to obtain a ZnS nanosheet sample.

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Abstract

The invention relates to a preparation method of ZnS nanosheets. The preparation method comprises the following steps: dispersing a ZnS-(L)n precursor into water to obtain a suspension; placing the suspension under illumination, and performing a reaction at a certain temperature under continuous stirring; and washing the solution obtained after the reaction, performing separation, performing precipitation, and drying the precipitate to obtain the ZnS nanosheets, wherein L in the ZnS-(L)n is a compound containing monoamino or multiamino, and n is 0.5 to 1. The preparation method provided by theinvention has mild reaction conditions, a simple process and environmental friendliness; and the ZnS nanosheets prepared by the preparation method have great application prospects in preparation of optical devices, electrical devices and catalysts.

Description

technical field [0001] The invention relates to the technical field of preparation of nanomaterials, in particular to a preparation method of ZnS nanosheets. Background technique [0002] ZnS is a wide bandgap semiconductor material with important application value. It has excellent fluorescence effect and electroluminescence function, and shows great application prospects in the application of optics, electronics and electronic devices. For nanostructured ZnS, due to the quantum confinement effect and the dependence of light emission properties on size and morphology, it exhibits many excellent properties in the fields of electricity, magnetism, optics, mechanics and catalysis. In recent years, it has attracted the attention of researchers. At the same time, recent studies have found that wurtzite-type ZnS has superior optical properties compared with sphalerite-type ZnS. However, as a high-temperature phase of ZnS, wurtzite-type ZnS is difficult to synthesize at low temp...

Claims

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Application Information

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IPC IPC(8): C01G9/08B82Y40/00
CPCB82Y40/00C01G9/08C01P2004/24C01P2004/61C01P2004/62C01P2004/64
Inventor 冯文辉刘平张世英
Owner CHANGSHA UNIVERSITY
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