Preparation and application of carnation-shaped p-n heterojunction copper sulfide nanometer material

A technology of nanomaterials, carnation flowers, applied in copper sulfide, chemical instruments and methods, chemical/physical processes, etc.

Inactive Publication Date: 2016-04-20
NORTHWEST NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there has been no literature report on the composite materials of copper sulfide (p-n) type heterostructure

Method used

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  • Preparation and application of carnation-shaped p-n heterojunction copper sulfide nanometer material
  • Preparation and application of carnation-shaped p-n heterojunction copper sulfide nanometer material
  • Preparation and application of carnation-shaped p-n heterojunction copper sulfide nanometer material

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Experimental program
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Embodiment 1

[0055] (1) C-g-C 3 N 4 Synthesis of nanomaterials: Take 4g of melamine powder and put it into a 100mL autoclave, fill the volume with absolute ethanol to 80%, and conduct a solvothermal reaction at 180°C for 24 hours to prepare a carbon-containing material, and centrifuge to obtain a colorless and transparent carbon-containing material , dried overnight at 70°C, then transferred to a porcelain crucible for calcination, raised to 520°C at 20°C / min, and kept for 4 hours; finally collected samples, ground, and obtained doped g-C 3 N 4 , mark CCN.

[0056] (2) Synthesis of CCN-CuSNFs nanomaterials: Dissolve 24mmol (1.8268g) thiourea in a 14mL ethanol reactor; add 0.0115gCCN into the reactor, and ultrasonicate for 30 minutes; then add 12mmol (2.0457g) chlorine dihydrate Copper chloride was dissolved in 28 mL of distilled water, and added to the reactor with magnetic stirring for 30 minutes; the temperature was raised to 140°C, and the reactor was closed for 12 hours; the product...

Embodiment 2

[0059] (1) C-g-C 3 N 4 The synthesis of nanometer material: with embodiment one;

[0060] (2) Synthesis of CCN-CuSNFs nanomaterials: the amount of CCN used is 0.0230 g, and the others are the same as in Example 1. The obtained product sample is labeled as 2CCN-CuS (CCN loading 2wt.%). The catalytic degradation rate of RhB by 2CCN-CuS was 74.5%.

Embodiment 3

[0062] (1) C-g-C 3 N 4 The synthesis of nanometer material: with embodiment one;

[0063] (2) Synthesis of CCN-CuSNFs nanomaterials: the amount of CCN used was 0.0575 g, and the others were the same as in Example 1. The obtained product sample is labeled as 5CCN-CuS (CCN loading 5wt.%). The catalytic degradation rate of RhB by 5CCN-CuS was 92.6%.

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Abstract

The invention provides preparation of a carnation-shaped p-n heterojunction copper sulfide nanometer material, and belongs to the technical field of nanometer materials. The preparation includes the steps that melamine is used as a raw material, carbon-doped graphene carbon nitrogen C-g-C3N4(CCN) is synthesized through hydro-thermal treatment and high-temperature calcination, and the carbon-doped graphene carbon nitrogen, copper chloride dihydrate and thiourea are further subjected to a hydrothermal reaction to synthesize a CCN-CuS p-n heterojunction; the p-n heterostructure reduces charge transfer resistance, enables photoinduced charges to be effectively separated and can effectively improve activity of photocatalyst. It is indicated through experiments that the prepared CCN-CuS p-n heterojunction nanometer material shows excellent visible-light catalytic activity and good cycling stability, and the degradation rate of rhodamin B can reach 92.6%. Therefore, the nanometer material can be used for degradation treatment on organic dyestuff waste water.

Description

technical field [0001] The present invention relates to the preparation of a copper sulfide nanomaterial, in particular to the preparation of a carnation flower-shaped p-n heterojunction copper sulfide nanomaterial; the present invention also relates to the structure, The performance and the application as a photocatalyst in the treatment of organic wastewater belong to the technical field of nanometer materials and the technical field of organic wastewater treatment. Background technique [0002] In the past few decades, with the excessive use of fossil fuels, the global demand for energy and environmental issues have attracted increasing attention. With the deepening of people's research on solar energy utilization, the proposal of using semiconductor photocatalysis technology to solve pollution and convert solar energy has been adopted by many people. Narrow band gap and high charge separation are the two basic principles for a semiconductor to utilize solar energy. Desi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G3/12B01J27/24
CPCB01J27/24B01J35/004C01G3/12C01P2002/72C01P2002/80C01P2002/84C01P2004/03C01P2004/04C01P2004/50C01P2004/61C01P2006/12
Inventor 王其召张淑玲石彦彪侯国蓉高朵朵吴艳霞王芳平苏碧桃
Owner NORTHWEST NORMAL UNIVERSITY
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