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Sulfur group hetero-structure nano material, preparation method and application thereof

A technology of heterostructures and nanomaterials, applied in the fields of nanostructure manufacturing, nanotechnology, nanotechnology, etc., can solve the problems of expensive solvent, unfavorable large-scale preparation, toxicity, etc., and achieve the effect of simple preparation method.

Inactive Publication Date: 2011-04-13
ANHUI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such approach has the following disadvantages: 1. The solvent used is relatively expensive or even toxic, which is not conducive to large-scale preparation
2. A complex multi-step synthesis path is adopted, and the synthesis efficiency needs to be improved

Method used

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  • Sulfur group hetero-structure nano material, preparation method and application thereof
  • Sulfur group hetero-structure nano material, preparation method and application thereof
  • Sulfur group hetero-structure nano material, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] a. Dissolve 0.154 grams of cadmium nitrate tetrahydrate, 0.158 grams of anhydrous bismuth trichloride, 0.133 grams of thiourea and 0.389 grams of polyvinylpyrrolidone in 35 milliliters of ethylene glycol at room temperature, and stir at room temperature until completely dissolved to obtain a homogeneous solution .

[0020] b. Transfer the mixed solution obtained in step a to a 50 ml stainless steel reaction kettle lined with polytetrafluoroethylene, and then heat at 140° C. for 8 hours under airtight conditions. After the reaction, the product was centrifuged, washed three times with acetone and deionized water, and dried at 60°C to obtain Bi 2 S 3 / CdS heterostructure, the molar ratio of bismuth source and cadmium source is 1:1

[0021] The result is as figure 1 and figure 2 Shown: figure 1 and figure 2 The result in (a) shows that the homogeneous heterostructure was obtained by this method. figure 2 The results of energy dispersion spectra in (b) and (c) sho...

Embodiment 2

[0023] a. Dissolve 0.154 g of cadmium nitrate tetrahydrate, 0.158 g of anhydrous bismuth trichloride, 0.114 g of thiourea and 0.333 g of polyvinylpyrrolidone in 35 ml of ethylene glycol at room temperature, and stir until completely dissolved to obtain a homogeneous solution at room temperature .

[0024] b. Transfer the mixed solution obtained in step a to a 50 ml stainless steel reaction kettle lined with polytetrafluoroethylene, and then heat at 140° C. for 8 hours under airtight conditions. After the reaction, the product was centrifuged, washed three times with acetone and deionized water, and dried at 60°C to obtain Bi 2 S 3 / CdS heterostructure.

Embodiment 3

[0026] a. Dissolve 0.154 grams of cadmium nitrate tetrahydrate, 0.158 grams of anhydrous bismuth trichloride, 0.152 grams of thiourea and 0.445 grams of polyvinylpyrrolidone in 35 milliliters of ethylene glycol at room temperature, and stir at room temperature until completely dissolved to obtain a homogeneous solution .

[0027] b. Transfer the mixed solution obtained in step a to a 50 ml stainless steel reaction kettle lined with polytetrafluoroethylene, and then heat at 140° C. for 8 hours under airtight conditions. After the reaction, the product was centrifuged, washed three times with acetone and deionized water, and dried at 60°C to obtain Bi 2 S 3 / CdS heterostructure.

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Abstract

The invention discloses a sulfur group hetero-structure nano material, a preparation method and application thereof. The nano material is Bi2S3 / CdS, and the molar ratio of a bismuth source to a cadmium source is 1:1. Compared with the prior art, bismuth sulfide nano wires can be mutually combined with cadmium sulfide nano granules by simple one-step solvent heat, the raw materials are easily obtained, the preparation method is simple, and the yield is 88 percent; and when the material prepared by the method is applied to photocatalytic degradation of organic pollutants such as methyl red dye, the organic pollutants can be basically completely degraded in 20 minutes.

Description

technical field [0001] The invention relates to a heterogeneous structure nano material, a preparation method and an application thereof, in particular to a chalcogen heterogeneous nano material, a preparation method and an application thereof. Background technique [0002] The synthesis of nanoscale heterostructure materials provides an efficient way to integrate nanostructures with different properties or functions into one material without using organic linking media. Different from single-functional nanomaterials, the ordered combination of nanocrystals at the microscopic scale can not only maintain the properties of the original materials, but also the effective contact of component materials (chemical bonds and van der Waals forces) will enhance the performance of heterostructure materials. . Among them, chalcogenide heterostructure nanomaterials have been proved to have very important theoretical and application prospects in the fields of semiconductor luminescence, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/04C02F1/32B82B3/00
Inventor 方臻刘玉凤
Owner ANHUI NORMAL UNIV
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