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Method for preparing copper, zinc, tin and selenium nanometer powder

A copper-zinc-tin-selenium, nano-powder technology, applied in the direction of nanotechnology, chemical instruments and methods, selenium/tellurium compounds, etc., can solve the problems of product structure, shape, size difference, etc., to achieve good dispersion, uniform size, The effect of process safety

Inactive Publication Date: 2012-09-19
SHANDONG JIANZHU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] Although the present invention and the above technical preparations are all prepared nano-scale Cu 2 ZnSnSe 4 , but there are great differences in raw materials and technological processes, and the products also have great differences in structure, shape and size.

Method used

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  • Method for preparing copper, zinc, tin and selenium nanometer powder
  • Method for preparing copper, zinc, tin and selenium nanometer powder

Examples

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Comparison scheme
Effect test

Embodiment 1

[0028] 2.455 parts of CuCl 2 2H 2 O, 1.000 parts of ZnCl 2 2H 2 O, 1.636 parts of SnCl 2 2H 2 O and 3.182 parts of SeO 2 The four solid powders were uniformly mixed, then 45.45 parts of hydrochloric acid and 772.65 parts of ethanol were added, and the mixture was evenly mixed by means of ultrasonic vibration and stirring. The above mixture solution was poured into a polytetrafluoroethylene-lined autoclave, and 45.455 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 above-mentioned washed product was dried in a vacuum oven at 70° C. to obtain copper-zinc-tin-selenium powder.

Embodiment 2

[0030] 2.455 parts of CuCl 2 2H 2 O, 1.000 parts of ZnCl 2 2H 2 O, 1.636 parts of SnCl 2 2H 2 O and 3.182 parts of SeO 2 The four solid powders were evenly mixed, then 45.45 parts of hydrochloric acid and 772.65 parts of deionized water were added, and the mixture was evenly mixed by means of ultrasonic vibration and stirring. The above mixture solution was poured into a polytetrafluoroethylene-lined autoclave, and 45.455 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. Dry the above-mentioned washed product in a vacuum oven at 70° C. to obtain copper-zinc-tin-selenium powder.

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Abstract

The invention relates to a method for preparing copper, zinc, tin and selenium nanometer powder, and relates to the technical field of hydrothermal chemical synthesis processes of nanometer materials. The method comprises the following steps of: reacting CuCl2.2H2O solid powder, ZnCl2.2H2O solid powder, SnCl2.2H2O solid powder and SeO2 solid powder which serve as raw materials by using hydrazine as a reducing agent, heating, washing, drying and the like, and thus obtaining the copper, zinc, tin and selenium nanometer powder. The copper, zinc, tin and selenium nanometer powder prepared by the method has the advantages of high purity, high dispersibility, uniform shape and size, safe technological process, processing simplicity for process auxiliary solutions and products, no pollution and the like; and therefore, the method has an extremely wide application prospect.

Description

technical field [0001] The invention relates to the technical field of hydrothermal chemical synthesis of nano-materials, in particular to a preparation method of copper-zinc-tin-selenium nanopowder 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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IPC IPC(8): C01B19/00B82Y40/00
Inventor 刘科高李静孙昌纪念静石磊许斌
Owner SHANDONG JIANZHU UNIV
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