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Preparation method of zinc selenide nanometer powder

A nano-powder, zinc selenide technology, applied in the field of preparation of zinc selenide nano-powder synthesized by hydrothermal method, can solve the problems of product structure, shape, size difference, etc., to achieve good dispersion, high purity, uniform size Effect

Inactive Publication Date: 2012-09-12
SHANDONG JIANZHU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] Although the present invention and the above technical preparations are all prepared nano-ZnSe, there are great differences in raw materials and process flow, so the products have great differences in structure, appearance and size.

Method used

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  • Preparation method of zinc selenide nanometer powder
  • Preparation method of zinc selenide nanometer powder

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Effect test

Embodiment 1

[0031] 2.440 parts of ZnCl 2 2H 2 O and 2.000 parts SeO 2 The two solid powders are evenly mixed, and then 12.987 parts of hydrochloric acid, 64.935 parts of ethanol, and 155.84 parts of deionized water are added, and they are uniformly mixed by ultrasonic vibration and stirring. The above mixture solution was poured into a polytetrafluoroethylene-lined autoclave, and 12.987 parts of 85% hydrazine was added. Heat the above reactor to 200°C, keep it warm for 90 hours, then cool to room temperature and take it out. The reacted solution is filtered through a water-based microporous membrane, repeatedly washed with deionized water and absolute ethanol, filtered and separated to remove impurities, and washed until neutral. The obtained product after the above washing was dried in a vacuum oven at 70° C. to obtain zinc selenide powder.

Embodiment 2

[0033] 1.220 parts of ZnCl 2 2H 2 O and 1.000 parts SeO 2 The two solid powders were uniformly mixed, and then 12.987 parts of hydrochloric acid, 64.935 parts of ethanol, and 155.84 parts of deionized water were added, and the mixture was uniformly mixed by means of ultrasonic vibration and stirring. The above mixture solution was poured into a polytetrafluoroethylene-lined autoclave, and 12.987 parts of 85% hydrazine was added. Heat the above reactor to 200°C, keep it warm for 45 hours, then cool to room temperature and take it out. The reacted solution is filtered through a water-based microporous membrane, repeatedly washed with deionized water and absolute ethanol, filtered and separated to remove impurities, and washed until neutral. The obtained product after the above washing was dried in a vacuum oven at 70° C. to obtain zinc selenide powder.

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Abstract

The invention provides a preparation method of zinc selenide nanometer powder, belonging to the technical field of a hydrothermal chemical synthesis nanometer material process. According to the preparation method provided by the invention, the zinc selenide nanometer powder is prepared by using two kinds of solid powder of ZnCl2*2H2O and SeO2 as raw materials and using hydrazine as a reducing agent through steps of reacting, heating, washing, drying and the like. The zinc selenide powder obtained from the invention has the advantages of high purity, uniform size, good dispersibility, safe technical process, easiness of auxiliary solution treatment, easiness of product treatment, no pollution and the like. Accordingly, the preparation method provided by the invention has very wide application prospect.

Description

technical field [0001] The invention relates to the technical field of hydrothermal chemical synthesis of nanometer materials, in particular to a preparation method of zinc selenide nanometer powder synthesized by hydrothermal method. Background technique [0002] Nanomaterials refer to materials that have at least one dimension in the three-dimensional space in the nanoscale range of 1-100nm or are composed of them as basic units. Nanomaterials have raised many new topics for condensed matter physics. Due to the small size of nanomaterials, the quantum size effect is very significant, which makes the optical, thermal, electrical, magnetic and other physical properties of nanomaterial systems different from conventional materials, and many novel properties appear. ; Another important feature of nanomaterials is the surface effect. As the size decreases, the specific surface area increases greatly, resulting in a large difference between the chemical properties of the nanosy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B19/04B82Y40/00
Inventor 刘科高孙浩森纪念静石磊许斌
Owner SHANDONG JIANZHU UNIV
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