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(CuIn)xZn2(1-x)S2 nano-particle, preparation method and application thereof

A nanoparticle and cubic phase technology, which is applied in the field of nano-semiconductor material synthesis, can solve the problems of complex operation, high price, and low output, and achieve the effects of large specific surface area, low cost, and high crystallinity

Inactive Publication Date: 2019-06-14
HUBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(CuIn) formed by other preparation methods such as organic "hot injection" x Zn 2(1-x) S 2 The size of nanoparticles is uniform, but the related organic solvents and metal precursors are expensive, the output is low, and there are limitations of complex operation and high cost

Method used

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  • (CuIn)xZn2(1-x)S2 nano-particle, preparation method and application thereof
  • (CuIn)xZn2(1-x)S2 nano-particle, preparation method and application thereof
  • (CuIn)xZn2(1-x)S2 nano-particle, preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] (CuIn) of this embodiment 0.05 Zn 1.9 S 2 A method for preparing nanoparticles, comprising the steps of:

[0036] (1) First, 0.1 mmol of copper acetate monohydrate (Cu(CH 3 COO) 2 ·H 2 O), 0.1mmol of indium acetate (In(CH 3 COO) 3 ) and 3.8 mmol of zinc acetate dihydrate (Zn(CH 3 COO) 2 2H 2 O) was poured into a three-necked bottle, put into a drying oven and dried at 120° C. for 10 minutes to remove the moisture in the reagent. Measure 25mL of oleylamine and pour it into a 100mL three-neck bottle. Nitrogen gas is injected into the left bottle mouth, a thermometer is inserted into the right bottle mouth, and a narrow nitrogen gas passage is reserved after the middle bottle mouth is put into a magnet. Blow nitrogen and keep stirring for later use.

[0037] (2) Weigh 4mmol of sulfur powder into a 50mL beaker, then add 10mL of oleylamine dropwise, cover the mouth of the beaker with plastic wrap, put it on a magnetic stirrer, and stir vigorously at 50°C until the...

Embodiment 2

[0042] (CuIn) of this embodiment 0.1 Zn 1.8 S 2 A method for preparing nanoparticles, comprising the steps of:

[0043] (1) First, 0.1 mmol of copper acetate monohydrate (Cu(CH 3 COO) 2 ·H 2 O), 0.1mmol of indium acetate (In(CH 3 COO) 3 ) and 1.8 mmol of zinc acetate dihydrate (Zn(CH 3 COO) 2 2H 2 O) Pour it into a three-neck bottle, put it in a drying oven and dry it at 120° C. for 10 minutes to remove the moisture in the reagent. Measure 22mL of oleylamine and pour it into a 100mL three-neck bottle. Nitrogen gas is introduced into the left bottle mouth, a thermometer is inserted into the right bottle mouth, and a narrow nitrogen gas passage is reserved after the middle bottle mouth is put into a magnet. Blow nitrogen and keep stirring for later use.

[0044] (2) Weigh 4mmol of sulfur powder and pour it into a 50mL beaker, then add 15mL of oleylamine dropwise, cover the mouth of the beaker with plastic wrap, put it on a magnetic stirrer, and stir vigorously until t...

Embodiment 3

[0049] (CuIn) of this embodiment 0.2 Zn 1.6 S 2 A method for preparing nanoparticles, comprising the steps of:

[0050] First, 0.2 mmol of copper acetate monohydrate (Cu(CH 3 COO) 2 ·H 2 O), 0.2mmol of indium acetate (In(CH 3 COO) 3 ) and 1.6mmol of zinc acetate dihydrate (Zn(CH 3 COO) 2 2H 2 O) Pour it into a three-neck bottle, put it in a drying oven and dry it at 120° C. for 10 minutes to remove the moisture in the reagent. Measure 24mL of oleylamine and pour it into a 100mL three-neck bottle. Nitrogen gas is injected into the left bottle mouth, a thermometer is inserted into the right bottle mouth, and a narrow nitrogen gas passage is reserved after the middle bottle mouth is put into a magnet. Blow nitrogen and keep stirring for later use.

[0051] (2) Weigh 4mmol of sulfur powder and pour it into a 50mL beaker, then add 12mL of oleylamine dropwise, cover the mouth of the beaker with plastic wrap, put it on a magnetic stirrer, and stir vigorously until the sulf...

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Abstract

The invention relates to a (CuIn)xZn2(1-x)S2 nano-particle, a preparation method and an application thereof. The nano-particle has a cubic phase and single-crystal structure; the size of nano-particleis 10-25nm; an optical band gap of the nano-particle can be continuously adjusted within 1.5-3.7eV; a value range of x is more than or equal to 0.5 but less than or equal to 1. The preparation methodcomprises the following steps: firstly taking copper acetate monohydrate, indium acetate, zinc acetate dihydrate and oleylamine as raw materials and preparing into a reaction solution; adding sulfurpowder and oleylamine solution into the reaction solution, and then reacting for 20-40min under a constant temperature at 270-290 DEG C, thereby acquiring the (CuIn)xZn2(1-x)S2 nano-particle highly dispersed in an oil phase. The nano-particle dispersed in the oil phase can be transferred into a water phase through reasonably designed surface replacement reaction, thereby endowing the (CuIn)xZn2(1-x)S2 nano-particle with extensive application prospect in the fields of hydrogen generation through water photolysis, quantum dot sensitized solar cell, bioimaging, and the like.

Description

technical field [0001] The invention belongs to the technical field of synthesis of nano-semiconductor materials, in particular to (CuIn) x Zn 2(1-x) S 2 Nanoparticles and methods of preparation and applications thereof. Background technique [0002] (CuIn) x Zn 2(1-x) S 2 Semiconductors made of ZnS and CuInS 2 The semiconductor is formed by solid solution, and its optical band gap can be adjusted between 3.7eV and 1.5eV, covering the entire visible light absorption band. It is a low-toxic and environmentally friendly semiconductor material. In recent years, nano-quaternary sulfide semiconductor (CuIn) x Zn 2(1-x) S 2 The potential application value of materials in photocatalysis, second-generation solar cells, biological imaging, photoelectric sensor devices and other fields has attracted extensive attention from domestic and foreign scientific research institutions. [0003] Current (CuIn) x Zn 2(1-x) S 2 The synthesis method of solid solution is mainly solvot...

Claims

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Application Information

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IPC IPC(8): C01G15/00B82Y40/00B01J27/04
Inventor 汪汉斌向晶晶常婧王浩
Owner HUBEI UNIV
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