Preparation method for zinc sulfide-graphene nanocomposite

A nano-composite material, zinc sulfide technology, applied in zinc sulfide, nanotechnology, nanotechnology and other directions, can solve the problems of complex process, many influencing factors, not suitable for scaled production, etc., to achieve short synthesis cycle, avoid agglomeration, good quality The effect of fluorescence quenching properties

Active Publication Date: 2016-02-24
嘉兴长蒿新材料科技有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

However, this method is complicated in process, requires a wide variety of raw materials, and has many influencing factors, so it is not suitable for large-scale production.

Method used

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  • Preparation method for zinc sulfide-graphene nanocomposite
  • Preparation method for zinc sulfide-graphene nanocomposite
  • Preparation method for zinc sulfide-graphene nanocomposite

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preparation example Construction

[0028] A kind of preparation method of zinc sulfide-graphene nanocomposite material is characterized in that, comprises the following steps:

[0029] (1) Preparation of zinc-mercapto complexes: the molar ratio of the sulfur-containing ligand and the zinc salt substance is 2:1, dissolved in an appropriate amount of deionized water or an organic solvent and mixed for reaction, and the sulfur-containing ligand is mercaptobenzo One of thiazole, mercaptoethanol, dodecyl mercaptan, the zinc salt is ZnCl 2 , Zn(NO 3 ) 2 , ZnSO 4 , Zn(CH 3 COO) 2 One of the above, the organic solvent is one of methanol, ethanol, ethylene glycol, isopropanol, ether, dimethylformamide, magnetically stirred for 30-60min, and then centrifuged with organic solvent and deionized water Wash 1 to 3 times, collect milky white precipitate, and vacuum dry for 10 to 30 hours to obtain zinc-mercapto complex;

[0030] (2) Preparation of sintered body: Weigh a certain amount of zinc-mercapto complex, spread it...

Embodiment 1

[0033] Weigh 5mmolZnCl 2 Dissolve in 30mL ethanol, take another 10mmol mercaptobenzothiazole (HMBT) and dissolve it in 50mL ethanol, then mix the two solutions thoroughly to obtain milky white precipitate Zn(MBT) 2 , after magnetic stirring for 30min, wash with ethanol and deionized water for 3 times, collect the milky white precipitate, and dry it in vacuum for 24h to obtain Zn(MBT) 2 .

[0034] Weigh a certain amount of Zn(MBT) 2, lay flat on the bottom of the magnetic boat, and then place it in a horizontal vacuum sintering furnace. Under the protection of nitrogen, control the temperature at 550 ° C, heat for 2 hours, and naturally cool to room temperature to obtain white powder (uncoated vulcanized Zinc crystal) is a black solid, which is called a sintered body. The sintered body is dissolved in a dilute hydrochloric acid solution with a volume fraction of 12%, soaked for 30 minutes, and filtered to obtain a black powder. This material is called an acid-treated sample. ...

Embodiment 2

[0040] Weigh 5mmolZnCl 2 Dissolve in 30mL of ethanol, another 10mmol of mercaptoethanol (HMCE) was dissolved in 50mL of ethanol, and then the two solutions were fully mixed to obtain a milky white precipitate Zn(MCE) 2 , after magnetic stirring for 30min, centrifuge washing with ethanol and deionized water for 3 times in turn, collect the milky white precipitate, and dry it in vacuum for 24h to obtain Zn(MCE) 2 .

[0041] Weigh a certain amount of Zn(MCE) 2 , lay flat on the bottom of the magnetic boat, and then place it in a horizontal vacuum sintering furnace. Under the protection of nitrogen, control the temperature at 550 ° C, heat for 2 hours, and naturally cool to room temperature to obtain white powder (uncoated ZnS Crystal) black solid, this substance is called a sintered body, the sintered body is dissolved in a dilute hydrochloric acid solution with a volume fraction of 12%, soaked for 30min, and then filtered to obtain a black powder, which is called an acid-treat...

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Abstract

The invention discloses a preparation method for a zinc sulfide-graphene nanocomposite. The preparation method is characterized by comprising the following steps: (1) preparation of a mercaptozinc complex: a step of dissolving sulfur-containing ligand and zinc salt in a proper amount of deionized water or an organic solvent for a hybrid reaction, carrying out stirring, then successively carrying out centrifugal washing with an organic solvent and deionized water, collecting a precipitate and drying the precipitate in vacuum so as to obtain the mercaptozinc complex; (2) preparation of a sintered body: weighing a certain amount of the mercaptozinc complex, sintering the mercaptozinc complex in a vacuum sintering furnace, introducing nitrogen into the vacuum sintering furnace and then carrying out natural cooling to room temperature so as to obtain black solid with white powder on its surface; and (3) acid treatment: a step of soaking the sintered body in an acid solution and then carrying out filtering and drying so as to obtain the zinc sulfide-graphene nanocomposite. The preparation method has the characteristics of simple process and synthesis equipment, a short synthesis period, good product homogeneity and easiness in realization of industrialization.

Description

technical field [0001] The invention relates to the field of battery composite materials for lithium ions and the design of photoelectric devices, in particular to a preparation method of a zinc sulfide-graphene nanocomposite material. Background technique [0002] In 2004, Geim et al. successfully exfoliated single-layer graphene from graphite, which initiated a comprehensive study of graphene. Graphene is a honeycomb-shaped two-dimensional carbonaceous new material with only a single atomic layer thickness. It has excellent electrical, mechanical and thermal properties and a high specific surface area. Electrodes, catalyst supports or batteries have potential huge application value. [0003] In addition, metal sulfides have unique optical, electrical, magnetic, mechanical and catalytic properties. Biological detection, immune analysis and other aspects have broad application prospects, and become one of the fields that materials scientists and chemists are eager to pay a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G9/08B82Y30/00
CPCC01G9/08C01P2002/72C01P2004/04C01P2004/64C01P2004/84
Inventor 张克杰陈鹏韩冰张声春潘蓉
Owner 嘉兴长蒿新材料科技有限公司
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