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A kind of preparation method and product of vitamin C-coated copper-zinc-tin-sulfur nanoparticles

A copper-zinc-tin-sulfur and nanoparticle technology, which is applied in the direction of nanotechnology, nanotechnology, nanotechnology, etc. for materials and surface science, can solve problems such as unfavorable industrial production, and achieve non-toxicity, good application prospects, and reaction The effect of mild conditions

Active Publication Date: 2017-11-24
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method uses L-cysteine ​​as a silicon source and complexing agent, but the reaction still needs to be carried out under high pressure conditions, which is undoubtedly not conducive to large-scale industrial production

Method used

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  • A kind of preparation method and product of vitamin C-coated copper-zinc-tin-sulfur nanoparticles
  • A kind of preparation method and product of vitamin C-coated copper-zinc-tin-sulfur nanoparticles
  • A kind of preparation method and product of vitamin C-coated copper-zinc-tin-sulfur nanoparticles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Dissolve 1.25mmol copper acetate, 0.625mmol zinc chloride, 0.625mmol tin chloride and 1.25mmol vitamin C in 40mL DMSO solvent, heat up to 155°C; at the same time, dissolve 2.5mmol sodium sulfide in a mixture of 5mL ethanol and 50mL DMSO in the solvent; then, drop the sodium sulfide solution into the metal source solution for 10 minutes; maintain the reaction temperature at 150°C for 6 hours. The CuZnSnS nanoparticles were sedimented with acetone and centrifuged to obtain a black solid. Add 30mL of water, sonicate for 10min, then add 30mL of acetone, and centrifuge to obtain pure vitamin C-coated copper-zinc-tin-sulfur nanoparticles. Its XRD pattern is as follows figure 1 shown. The synthesized copper-zinc-tin-sulfur nanoparticles are in the crystal form of copper-zinc-tin-zinc ore, which is consistent with the XRD standard card JCPDS No.26-0575. figure 2 The scanning electron microscope image of the vitamin C-wrapped copper-zinc-tin-sulfur nanoparticles prepared for...

Embodiment 2

[0036]Dissolve 1.25mmol copper acetate, 0.625mmol zinc chloride, 0.625mmol tin chloride and 1.25mmol vitamin C in 40mL DMSO, heat up to 155°C; at the same time, dissolve 2.5mmol sodium sulfide in a mixed solvent of 5mL water and 50mL DMSO Then, drop the sodium sulfide solution into the metal source solution for 10 minutes; maintain the reaction temperature at 150°C for 1 hour. The CuZnSnS nanoparticles were sedimented with acetone and centrifuged to obtain a black solid. Add 30mL of water, sonicate for 10min, then add 30mL of acetone, and centrifuge to obtain pure vitamin C-coated copper-zinc-tin-sulfur nanoparticles.

Embodiment 3

[0038] Dissolve 1.25mmol copper acetate, 0.625mmol zinc chloride, 0.625mmol tin chloride and 1.25mmol vitamin C in 40mL DMSO, heat up to 155°C; at the same time, dissolve 2.5mmol sodium sulfide in a mixed solvent of 5mL methanol and 50mL DMSO Then, drop the sodium sulfide solution into the metal source solution for 10 minutes; maintain the reaction temperature at 150°C for 6 hours. The CuZnSnS nanoparticles were sedimented with acetone and centrifuged to obtain a black solid. Add 30mL of water, sonicate for 10min, then add 30mL of acetone, and centrifuge to obtain pure vitamin C-coated copper-zinc-tin-sulfur nanoparticles.

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Abstract

The invention discloses a preparation method of copper-zinc-tin-sulfur nanoparticles wrapped in vitamin C. The metal source, vitamin C and dimethyl sulfoxide are mixed to obtain a metal source solution; the metal source is metal chloride or metal acetate; then the sulfur source is mixed with the mixed solvent of protic solvent / dimethyl sulfoxide to obtain the sulfur source solution; the sulfur source is sodium sulfide, ethanethiol or thiourea; finally the sulfur source The solution is added dropwise into the metal source solution, reacted at 100-180° C. for 2-20 hours, and centrifuged to obtain copper-zinc-tin-sulfur nanoparticles wrapped with vitamin C. The invention provides a method for preparing vitamin C-wrapped copper-zinc-tin-sulfur nanoparticles, which is carried out under normal pressure, has mild reaction conditions and controllable process, and is suitable for large-scale industrial production. Copper-zinc-tin-sulfur nanoparticles in the crystal form of sulfur-copper-tin-zinc ore wrapped with vitamin C as a ligand are prepared.

Description

technical field [0001] The invention relates to the field of nanomaterial preparation, in particular to a method for preparing vitamin C-wrapped copper-zinc-tin-sulfur nanoparticles and a product thereof. Background technique [0002] Copper-zinc-tin-sulfur nanoparticles are important light-absorbing materials for thin-film batteries, with excellent physical and chemical properties, such as adjustable energy band gap (1.0-1.5eV), high light absorption coefficient (about 10 4 cm -1 ), non-toxic, metal elements are cheap and stored in large quantities on the earth, and can be industrially produced in large quantities. [0003] Copper-zinc-tin-sulfur nanoparticles wrapped with long-chain ligands, especially those with oleylamine and oleic acid as ligands, have been extensively studied (Phys.Chem.Chem.Phys., 2012, 14, 8090-8096; RSC Adv., 2013, 3, 5845-5850; J. Am. Chem. Soc., 2009, 131, 12554-12555). However, the steric hindrance of long-chain ligands is relatively large, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G19/00B82Y30/00
Inventor 酒同钢方俊锋罗维宁
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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