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Method for preparing cadmium selenide nano-belt

A nanobelt and cadmium selenide technology, applied in the chemical characteristics of fibers, chemical post-treatment of rayon, textiles and papermaking, etc.

Inactive Publication Date: 2012-12-12
CHANGCHUN UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no report on the preparation of CdSe nanoribbons by combining electrospinning technology and selenization technology

Method used

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  • Method for preparing cadmium selenide nano-belt
  • Method for preparing cadmium selenide nano-belt
  • Method for preparing cadmium selenide nano-belt

Examples

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Embodiment

[0022] Embodiment: take a certain amount of cadmium carbonate CdCO 3 , with HNO 3 Dissolved and heated to evaporate to obtain Cd(NO 3 ) 2 , adding solvent N,N-dimethylformamide DMF and polyvinylpyrrolidone PVP, magnetic stirring at room temperature for 6h, and standing for 3h to form a spinning solution, the mass percentage of each component of the spinning solution is: cadmium nitrate content of 10%, PVP content of 20%, and solvent DMF content of 70%; the prepared spinning solution is added to the liquid storage pipe of the spinning device for electrospinning. DC voltage, curing distance 14cm, room temperature 18-25°C, relative humidity 50%-60%, PVP / Cd(NO 3 ) 2 Composite nanobelt, the PVP / Cd(NO 3 ) 2 The composite nanobelts were heat-treated in a temperature-programmed furnace with a heating rate of 1°C / min, kept at 500°C for 4 hours, then cooled down to 200°C at a rate of 1°C / min, and then naturally cooled to room temperature with the furnace body to obtain CdO nanobe...

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Abstract

The invention relates to a preparation method of a cadmium selenide nano-belt, and belongs to the technical field of nano-grade material preparation. According to the invention, a double-crucible method is adopted, and an electro-spinning technology is combined with a selenization technology, such that the CdSe nano-belt is prepared. The method comprises the three steps that: (1) a spinning solution is prepared; (2) a CdO nano-belt is prepared, wherein PVP / Cd(NO3)2 composite nano-belt is prepared with an electro-spinning technology, and a heat treatment is carried out under air, such that the CdO nano-belt is obtained; and (3) the CdSe nano-belt is prepared, wherein the double-crucible method is adopted, and the CdO nano-belt is subjected to a selenization treatment by using selenium powder under argon gas protection, such that the CdSe nano-belt is obtained. The obtained CdSe nano-belt has a good crystal form with a width of 2.1560mum (plus or minus 0.2014mum), a thickness of 618nm, and a length larger than 50mum. The cadmium selenide nano-belt is a novel important functional material. The preparation method provided by the invention is simple and feasible, and can be adopted in batched productions. The method has a good application prospect.

Description

technical field [0001] The invention relates to the technical field of nanomaterial preparation, in particular to a method for preparing cadmium selenide nanobelts. Background technique [0002] The preparation and properties of inorganic nanobelts are currently one of the frontier research hotspots in materials science, condensed matter physics, chemistry and other disciplines. Nanoribbon is a kind of nanomaterial with ribbon structure synthesized by artificial method. Its cross section is a rectangular structure, its thickness is on the order of nanometers, its width can reach micron level, and its length can reach hundreds of microns, even several mm. Nanobelts have attracted great attention because of their novel structures different from tubes and wires, and their unique optical, electrical, and magnetic properties. [0003] Cadmium selenide CdSe crystal belongs to group II-VI semiconductors with direct band gap, and is an excellent luminescent material with a direct ...

Claims

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Application Information

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IPC IPC(8): D01F9/10D01F11/00
Inventor 于文生董相廷马雯雯温雪王进贤刘桂霞浦利
Owner CHANGCHUN UNIV OF SCI & TECH
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