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Chemical method of synthesizing Se-S-Cu (Selenium-Sulphur-Copper) ternary compound through constant temperature in-situ control

A ternary compound, in-situ synthesis technology, applied in the field of material chemistry, can solve the problems of cumbersome preparation process and unfavorable industrial production, and achieve the effects of controllable reaction process, no energy consumption, and low energy consumption

Active Publication Date: 2015-09-02
XUCHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The method described above overcomes the synthetic methods (doping / co-doping method, heat injection method, gel method, combination method with polymer or inorganic semiconductor, vapor deposition method and cation exchange method etc.) ) needs high temperature, high pressure, high energy consumption, high cost, complex film forming process or the need to use highly toxic solvents or catalysts in the preparation process. , The use of toxic solvents (DMF) is not conducive to large-scale industrial production

Method used

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  • Chemical method of synthesizing Se-S-Cu (Selenium-Sulphur-Copper) ternary compound through constant temperature in-situ control
  • Chemical method of synthesizing Se-S-Cu (Selenium-Sulphur-Copper) ternary compound through constant temperature in-situ control
  • Chemical method of synthesizing Se-S-Cu (Selenium-Sulphur-Copper) ternary compound through constant temperature in-situ control

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Preparation: Cut the purchased copper sheet into 1cm×1cm copper sheet, immerse the cut copper sheet in 2M dilute hydrochloric acid, ultrasonically clean it in an ultrasonic cleaner for 10 minutes, and carry out deoxidation treatment. Rinse with deionized water for 2 to 5 times for later use; wash the beaker with tap water and distilled water in sequence, and dry it for later use;

[0037] (2) Reaction step: a certain amount of elemental Se powder and Na 2 S adds a small amount of deionized water, heats in 80 DEG C blast drying oven until the selenium powder dissolves completely, and the solution turns wine red to obtain an aqueous solution with a sodium sulfide concentration of 0.0100g / ml and an elemental Se concentration of 0.0002g / ml, and then Seal the beaker with sealing glue and put it into a device with constant temperature function such as a biochemical incubator to keep the temperature at 15°C, put the deoxidized copper sheet into the reaction solution, and r...

Embodiment 2

[0040] (1) Preparation: Cut the purchased copper sheet into 1cm×1cm copper sheet, immerse the cut copper sheet in 2M dilute hydrochloric acid, ultrasonically clean it in an ultrasonic cleaner for 10 minutes, and carry out deoxidation treatment. Rinse with deionized water for 2 to 5 times for later use; wash the beaker with tap water and distilled water in sequence, and dry it for later use;

[0041] (2) Reaction step: a certain amount of elemental Se powder and Na 2 S adds a small amount of deionized water, heats until the selenium powder is completely dissolved, and the solution turns wine red to obtain an aqueous solution with a concentration of sodium sulfide of 0.0100g / ml and a concentration of elemental Se of 0.0002g / ml, then seal the beaker with a sealant and put it in A device with a constant temperature function, such as a biochemical incubator with a constant temperature of 15°C, put the deoxidized copper sheet into the reaction solution, and react at 15°C for 5 hours...

Embodiment 3

[0044] (1) Preparation: Cut the purchased copper sheet into 1cm×1cm copper sheet, immerse the cut copper sheet in 2M dilute hydrochloric acid, ultrasonically clean it in an ultrasonic cleaner for 10 minutes, and carry out deoxidation treatment. Rinse with deionized water for 2 to 5 times for later use; wash the beaker with tap water and distilled water in sequence, and dry it for later use;

[0045] (2) Reaction step: a certain amount of elemental Se powder and Na 2 S adds a small amount of deionized water, heats until the selenium powder is completely dissolved, and the solution turns wine red to obtain an aqueous solution with a concentration of sodium sulfide of 0.0100g / ml and a concentration of elemental Se of 0.0002g / ml, then seal the beaker with a sealant and put it in A device with a constant temperature function, such as a biochemical incubator with a constant temperature of 15°C, put the deoxidized copper sheet into the reaction solution, and react at 15°C for 12 hour...

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Abstract

The invention relates to a chemical method of synthesizing a Se-S-Cu (Selenium-Sulphur-Copper) ternary compound through constant temperature in-situ control. The chemical method comprises the steps of dissolving simple substance Se powder into a Na2S (Sodium Sulphide) water solution to form a wine red solution, dipping a copper source into the above solution, and preparing a black Se-S-Cu ternary compound through in situ through 5-30 DEG C constant temperature reaction. The method can be carried out at 5-30 constant temperature condition, is mild in condition, controllable in reaction process and convenient and fast to operate, no energy consumption can be caused, and the reaction process does not affect the performance of a conductive substrate material; furthermore, the Se-S-Cu ternary compound is high and uniform in purity and excellent in crystallinity, therefore having a good industrial application prospect as a novel narrow-band photoelectric material.

Description

Technical field: [0001] The invention belongs to the technical field of material chemistry and relates to a chemical method for synthesizing a selenium-sulfur-copper ternary compound under normal temperature and in situ control. Background technique: [0002] As we all know, in addition to the unique surface effect, macroscopic quantum tunneling effect and small size effect of nanomaterials, transition metal chalcogenide micro-nano materials are also a very important class of semiconductor materials. It is widely used in frontier fields such as nanomedical materials, photoelectric conversion materials, catalytic materials, energy storage materials, nonlinear optical materials, magnetic materials, sensor materials, etc. It has great potential and has attracted many domestic and foreign scientific researchers. s concern. For example, cadmium sulfide (CdS), cadmium selenide (CdSe), lead sulfide (PbS), silver sulfide (Ag 2 S), silver selenide (Ag 2 Se), cuprous sulfide (Cu 2...

Claims

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Application Information

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IPC IPC(8): C01B19/00B82Y30/00
Inventor 郑直程佳美雷岩贾会敏贺迎迎陆凯
Owner XUCHANG UNIV
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