Preparation method for Cu3BiS3 micro/nanosheet

A technology of precursor and copper precursor, which is applied in the field of preparation of Cu3BiS3 micro/nanosheets, can solve the problems of high requirements for reagents and equipment, complicated process, difficult to popularize, etc., and achieves the effect of low cost and simple process

Inactive Publication Date: 2015-06-17
NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the above method, the Cu obtained by the thermal evaporation method 3 BY 3 , the high temperature of 800~1000°C is required in the preparation process, and the requirements for reagents and equipment are high, which seriously affects its application prospect; the solvothermal method requires the participation of organic solvents and surfactants, and the process is complicated and difficult to popularize

Method used

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  • Preparation method for Cu3BiS3 micro/nanosheet
  • Preparation method for Cu3BiS3 micro/nanosheet
  • Preparation method for Cu3BiS3 micro/nanosheet

Examples

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Embodiment 1

[0026] Step 1. Dissolve 3 mmol of copper nitrate, 1 mmol of bismuth nitrate, 3 mmol of thiourea, and 2 mmol of reduced glutathione in 80 mL of water to prepare a solution, and adjust the pH of the solution to 10;

[0027] Step 2. Transfer the above solution to a hydrothermal reaction kettle for heating, control the temperature at 90°C, and react for 10 minutes, then naturally cool to room temperature and centrifuge at a speed of 10,000 r / min, and use deionized water and After washing with ethanol 10 times and drying, Cu 3 BY 3 micro / nanochips.

Embodiment 2

[0029] Step 1. Dissolve 3 mmol of copper sulfate, 1 mmol of bismuth nitrate, 3 mmol of thiourea, and 2 mmol of reduced glutathione in 80 mL of water to prepare a solution, and adjust the pH of the solution to 5;

[0030] Step 2. Transfer the above solution to a hydrothermal reactor for heating. Control the temperature at 180°C. After reacting for 6 hours, cool down to room temperature naturally and centrifuge at a speed of 12000 r / min. Use deionized water and ethanol to dissolve the precipitate obtained by centrifugation. After washing 10 times and drying, Cu 3 BY 3 micro / nanochips.

Embodiment 3

[0032] Step 1. Dissolve 3 mmol of copper acetate, 1 mmol of bismuth acetate, 3 mmol of thioacetamide, and 4 mmol of reduced glutathione in 80 mL of deionized water to prepare a solution, and adjust the pH of the solution to 6;

[0033] Step 2. Transfer the above solution to a hydrothermal reactor for heating. Control the temperature at 120°C. After reacting for 6 hours, cool down to room temperature naturally and centrifuge at a speed of 10,000 r / min. Use deionized water and ethanol to dissolve the precipitate obtained by centrifugation. After washing 10 times and drying, Cu 3 BY 3 micro / nanochips.

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Abstract

The invention discloses a preparation method for a Cu3BiS3 micro/nanosheet. The preparation method comprises the following steps: 1, dissolving a copper-containing precursor, a bismuth-containing precursor, a sulfur-containing precursor and a chelating agent in water to prepare a solution, wherein the copper-containing precursor is copper nitrate, copper sulfate or copper acetate, the bismuth-containing precursor is bismuth nitrate or bismuth acetate, the sulfur-containing precursor is thiourea, thioacetamide, sublimed sulfur or sodium sulfate, and the chelating agent is reduced glutathione; 2, heating the solution prepared in the step 1, producing a reaction completely, cooling to a room temperature, performing centrifugal treatment, washing sediments obtained by centrifuging with water and ethanol, drying, and preparing the Cu3BiS3 micro/nanosheet. The preparation method is simple in process, adopts low-price copper source, bismuth source and sulfur source as the precursors, uses solid-state nontoxic reduced glutathione as the chelating agent and uses the water as a solvent, so that the preparation method is low in cost and favorable for popularization and application.

Description

technical field [0001] The present invention relates to the technical field of micro / nano materials, in particular to a kind of Cu 3 BY 3 Preparation methods of micro / nanochips. Background technique [0002] Cu 3 BY 3 The band gap is about 1.4eV, which can be used to prepare quantum devices, which can change the luminous frequency and performance of the device through the quantum size effect, so it has been widely used as photocatalysis, semiconductor devices, light-emitting devices, laser or infrared detection materials for devices and photosensitive sensors. In addition, it is an excellent infrared window and nonlinear optical material. Cu now 3 BY 3 Has been used to make a variety of optoelectronic devices, such as lasers, photodetectors, optical storage devices, quantum dots, etc.; Cu 3 BY 3 It can also be used to make photovoltaic devices, such as solar cells. [0003] At present, for Cu at home and abroad 3 BY 3 The research on nanostructured materials is s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G29/00B82Y30/00
CPCC01G29/006C01P2002/72C01P2002/85C01P2004/03C01P2004/60
Inventor 邓萌陈飞雷引林罗云杰陈珏
Owner NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
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