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Solid phase reaction preparation method of cuprous sulfide nanopowder

A technology of nano-powder and cuprous sulfide, applied in the field of nano-materials, can solve the problems of complex preparation process, easy agglomeration of product particles, difficult to clean up, etc., and achieve simple preparation process, good photocatalytic activity and good repeatability Effect

Active Publication Date: 2015-08-05
HUAIBEI NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the common liquid-phase preparation process, organic reducing agents and stabilizers are generally used. On the one hand, the use of these organic compounds will cause certain pollution to the environment, which does not conform to the guiding ideology of green chemistry; on the other hand, these organic compounds Additives are difficult to remove in the synthesized product, affecting product quality
In addition, the product particles prepared by the liquid phase method are easy to agglomerate, the particle size range of the product is wide, and the preparation process is relatively complicated, requiring multi-step reactions

Method used

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  • Solid phase reaction preparation method of cuprous sulfide nanopowder
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  • Solid phase reaction preparation method of cuprous sulfide nanopowder

Examples

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Embodiment 1

[0021] Weigh 0.02 moles of analytically pure CuCl and 0.012 moles of analytically pure Na according to the molar ratio of 1:0.6 2 S·9H 2 O was added into a 50mL zirconia ball mill jar equipped with 50 zirconia balls with a diameter of 6mm and 8 zirconia balls with a diameter of 10mm and continuously ground for 2.0 hours. Vacuum drying at 80°C and 0.1MPa vacuum for 2 hours to obtain an average grain size of 29.7nm Cu 2 S nano powder.

Embodiment 2

[0023] Weigh 0.02 moles of analytically pure CuCl and 0.014 moles of analytically pure Na according to a molar ratio of 1:0.7 2 S·9H 2 O was added into a 50mL zirconia ball mill jar equipped with 50 zirconia balls with a diameter of 6mm and 8 zirconia balls with a diameter of 10mm and continuously ground for 2.0 hours. Vacuum drying at 80°C and 0.1MPa vacuum for 2 hours to obtain an average grain size of 29.6nm Cu 2 S nano powder.

Embodiment 3

[0025] Weigh 0.02 moles of analytically pure CuCl and 0.016 moles of analytically pure Na according to a molar ratio of 1:0.8 2 S·9H 2 O was added into a 50mL zirconia ball mill jar equipped with 50 zirconia balls with a diameter of 6mm and 8 zirconia balls with a diameter of 10mm and continuously ground for 2.0 hours. Vacuum drying at 80°C and 0.1MPa vacuum for 2 hours to obtain an average grain size of 29.4nm Cu 2 S nano powder.

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Abstract

The invention discloses a solid phase reaction preparation method of cuprous sulfide nanopowder. The method comprises the following steps: uniformly mixing solid cuprous halide as a Cu<+> source with solid water-soluble sulfide as an S<2-> source according to a molar ratio of 1:0.6-1, adding the obtained mixture into a zirconia ball milling tank, carrying out solid phase mechanical ball milling for 0.5-10h, washing by using deionized water to remove water-soluble impurities in the ball milled mixture, and carrying out vacuum drying to obtain the cuprous sulfide nanopowder. The method adopting a simple mechanical and chemical reaction synthesis technology has the advantages of simple preparation process, low cost, good repeatability, and realization of large scale production at normal temperature under normal pressure.

Description

technical field [0001] The invention relates to a method for preparing a photocatalytic nano material, in particular to a method for preparing a cuprous sulfide nano powder, which belongs to the technical field of nano materials. technical background [0002] Due to their unique optical properties, nano-semiconductor materials have new potential applications in the fields of light and electricity, and have become an important part of the research in the field of photocatalytic materials. Moreover, because of the small size effect, quantum size effect, surface effect and interface effect of nanomaterials, this material has a series of excellent macroscopic effects such as electricity, magnetism, light, mechanics and chemistry, so it has attracted more scholars. study in depth. However, in the research of nano-semiconductor photocatalysts, most of the nano-semiconductor materials with wide bandgap are involved, such as TiO 2 , ZnO, SnO 2 And so on, because these nano-semico...

Claims

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Application Information

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IPC IPC(8): C01G3/12B82Y30/00
Inventor 张茂林李龙凤陈敏敏杨清雅娈晓雯姜健
Owner HUAIBEI NORMAL UNIVERSITY
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