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Hydrangea macrophylla-shaped Cu2-xSe nanometer material and production and application thereof

A technology of cu2-xse and nanomaterials, applied in selenium/tellurium compounds, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of poor photocatalytic performance of Se and achieve excellent photocatalytic performance

Active Publication Date: 2019-08-23
DONGHUA UNIV
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a hydrangea-shaped Cu 2-x Se nanomaterials and their preparation and application to improve Cu in the prior art 2-x Defects of poor photocatalytic performance of Se

Method used

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  • Hydrangea macrophylla-shaped Cu2-xSe nanometer material and production and application thereof
  • Hydrangea macrophylla-shaped Cu2-xSe nanometer material and production and application thereof
  • Hydrangea macrophylla-shaped Cu2-xSe nanometer material and production and application thereof

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Embodiment 1

[0033] A hydrangea-like Cu 2-x The preparation method of Se nanometer material, concrete steps are:

[0034] (1) The preparation method of selenium source solution comprises: accurately weigh the selenium powder of 1.28g with electronic balance, pour into the beaker and dissolve with 25mL deionized water, add 15mL 12mol / L NaOH solution to help selenium powder dissolve, stir in solution After 30 minutes, 10 mL of hydrazine hydrate (concentration: 85%) was added, stirred for 2 hours at room temperature with a constant temperature magnetic stirrer, and the selenium powder was completely dissolved to obtain a selenium source solution.

[0035] (2) Use an electronic balance to weigh 2.5g CuSO 4 ·5H 2 O, add 10mL of deionized water into the beaker, stir with a glass rod until it is completely dissolved, add 1g of disodium edetate, the solution will appear turbid, add NaOH solution dropwise to make the turbidity clear and adjust the pH of the solution , which is slightly alkaline ...

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Abstract

The invention relates to a hydrangea macrophylla-shaped Cu2-xSe nanometer material and production and application thereof. A production method comprises the steps of adding hydrazine hydrate into a selenium powder aqueous solution to obtain a selenium source solution; and adding ethylenediaminetetraacetic acid disodium into a copper salt aqueous solution, adding the selenium source solution, thenadding a stabilizer, stirring a mixture evenly, carrying out hydrothermal reaction, and conducting cooling, separating, washing and drying. The synthesized hydrangea macrophylla-shaped Cu2-xSe nanometer material has excellent photocatalysis performance, and can be used as a photocatalyst for sewage treatment, colored dye decomposition and the like.

Description

technical field [0001] The invention belongs to the field of semiconductor materials and their preparation methods and applications, in particular to a hydrangea-shaped Cu 2-x Se nanomaterials and their preparation methods and applications. Background technique [0002] Photocatalytic technology, the photocatalytic process is the generation, transport and utilization of photogenerated electron-hole pairs. It mainly uses semiconductors as photocatalysts to absorb and utilize solar energy. Photocatalytic technology is a relatively complex process involving many disciplines such as chemistry, physics and materials. The band gap energy, also known as the forbidden band width Eg, is located between the valence band and the conduction band, and the value is equal to the energy level difference between the valence band and the conduction band. It is due to the discontinuity of the Fermi energy level of the semiconductor compound electrons, which makes the electrons Orbits have e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B19/00B01J27/057B01J35/00
CPCC01B19/007B01J27/0573C01P2004/03C01P2004/32B01J35/39Y02E60/36
Inventor 侯鑫李羚玮谢培姜坤魏晓帆薛绍林
Owner DONGHUA UNIV
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