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a cus/g‑c 3 no 4 Preparation method of nano ball flower composite catalyst

A technology of nanospheres and composites, applied in chemical instruments and methods, other chemical processes, light water/sewage treatment, etc., can solve problems such as poor stability, photochemical corrosion, etc., and achieve easy operation, simple reaction, efficient adsorption and catalysis performance effect

Inactive Publication Date: 2017-07-11
WUHAN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the photochemical corrosion of single nano-CuS, the stability is poor.

Method used

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  • a cus/g‑c <sub>3</sub> no <sub>4</sub> Preparation method of nano ball flower composite catalyst
  • a cus/g‑c <sub>3</sub> no <sub>4</sub> Preparation method of nano ball flower composite catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1)g-C 3 N 4 Preparation

[0019] Weigh 3.0g of melamine into a 50mL ceramic crucible, put it in a muffle furnace, heat up in the air from room temperature to 550°C, at a rate of 2°C / min, keep it at constant temperature for 4h, and cool to room temperature to obtain yellow g-C 3 N 4 product.

[0020] (2)CuS / g-C 3 N 4 Preparation of nanosphere flowers

[0021] Weigh copper acetate, acetylacetone and sulfur chloride respectively, g-C 3 N 4 In a beaker, add absolute ethanol and ultrasonically stir for 10 min. The mass ratio of each raw material is copper acetate: acetylacetone: sulfur chloride: g-C 3 N 4 =1:1:3:0.44. Add the acetylacetone-ethanol solution and the sulfur chloride-ethanol solution to the copper acetate-ethanol solution, and then add g-C 3 N 4 -After the ethanol solution is added to the above mixed solution, sonicate for 20 minutes. The mixed solution was transferred to a polytetrafluoroethylene reactor and heated in an oven at 160°C for 2h. Alcohol wash precipit...

Embodiment 2

[0023] CuS / g-C 3 N 4 Preparation of nanosphere flowers

[0024] Weigh copper acetate, acetylacetone and sulfur chloride respectively, g-C 3 N 4 (Preparation is the same as in Example 1) In a beaker, add absolute ethanol and ultrasonically stir for 10 min. The mass ratio of each raw material is copper acetate: acetylacetone: sulfur chloride: g-C 3 N 4 =1:1:3:0.44. Add the acetylacetone-ethanol solution and the sulfur chloride-ethanol solution to the copper acetate-ethanol solution, and then add g-C 3 N 4 -After the ethanol solution is added to the above mixed solution, sonicate for 20 minutes. Transfer the mixed solution to a polytetrafluoroethylene reactor and heat it in an oven at 160°C for 24 hours. Alcohol wash precipitation 3 times, dry at 60℃, get CuS / g-C 3 N 4 Nano ball flower complex catalyst.

Embodiment 3

[0026] CuS / g-C 3 N 4 Preparation of nanosphere flowers

[0027] Weigh copper acetate, acetylacetone and sulfur chloride respectively, g-C 3 N 4 (Preparation is the same as in Example 1) In a beaker, add absolute ethanol and ultrasonically stir for 10 min. The mass ratio of each raw material is copper acetate: acetylacetone: sulfur chloride: g-C 3 N 4 =1:1:3:0.9 (denoted as A), or copper acetate: acetylacetone: sulfur chloride: g-C 3 N 4 =1:1:3:0.67 (denoted as B), or copper acetate: acetylacetone: sulfur chloride: g-C 3 N 4 =1:1:3:0.11 (denoted as C). Add the acetylacetone-ethanol solution and the sulfur chloride-ethanol solution to the copper acetate-ethanol solution, and then add g-C 3 N 4 -Ethanol solution was added to the above mixed solution separately and ultrasonicated for 20min. The mixed solution was transferred to a polytetrafluoroethylene reactor and heated in an oven at 160°C for 2h. Alcohol wash precipitation 3 times, dry at 60℃, get CuS / g-C 3 N 4 Nano ball flower c...

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Abstract

The invention relates to a preparation method of a CuS / g-C3N4 nano-spheroidized compound catalyst. The preparation method comprises the following steps: (1) respectively weighing copper acetate, acetylacetone, sulphur chloride and g-C3N4, adding into a flask, adding with absolute ethanol, and carrying out ultrasonic stirring for 5-20 minutes; (2) respectively adding obtained acetylacetone-ethanol solution and sulfur chloride-ethanol solution into a copper acetate-ethanol solution, then adding a g-C3N4-ethanol solution into the mixed solution, and carrying out ultrasonic treatment; and (3) transferring the mixed solution into a polytetrafluoroethylene reaction kettle, heating in a drying oven, washing precipitates with alcohol, and drying, so as to obtain the CuS / g-C3N4 nano-spheroidized compound catalyst. Compared with the prior art, the preparation method has the advantages that the reaction is simple and rapid, the operation is easy, reaction conditions are mild, and the preparation method is applicable to industrial production; by taking visible light as a light source, the CuS / g-C3N4 nano-spheroidized compound catalyst prepared by virtue of the preparation method is applicable to the degradation of environmental organic pollutants.

Description

Technical field [0001] The present invention relates to the field of visible light catalytic materials, especially CuS / g-C 3 N 4 Preparation method of nano ball flower composite catalyst. Background technique [0002] With the rapid development of economy and society, the random discharge of various industrial waste gas and wastewater has made environmental problems increasingly prominent, and sustainable development is facing severe challenges. The development of efficient and clean energy is urgent. Therefore, how to make better use of solar energy has become a hot topic for scientists. [0003] g-C 3 N 4 It is a polymer material with typical semiconductor characteristics. It has high exciton binding energy and low crystallinity, which is not conducive to the rapid migration and efficient separation of photo-generated electron-hole pairs, which leads to the deviation of quantum efficiency during photocatalysis. It is not conducive to the popularization and application of photoca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/24B01J20/02B01J20/30C02F1/30
Inventor 邹菁张胜周鑫龚晚芸邓河霞江吉周
Owner WUHAN INSTITUTE OF TECHNOLOGY