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Flower-like CuS submicron spheres and ionic liquid microemulsion thermal synthesis method thereof

An ionic liquid and sub-micron technology, applied in chemical instruments and methods, water treatment of special compounds, copper sulfide, etc., can solve the problems of lack of control of morphology, uneven particle size distribution, environmental pollution, etc., and achieve stable photocatalytic efficiency , high photocatalytic efficiency and high crystallinity

Active Publication Date: 2019-12-10
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The copper sulfide materials synthesized by water / solvothermal method and microwave method have controllable morphology and high crystallinity, but there are problems such as uneven particle size distribution and easy agglomeration
The copper sulfide material synthesized by the template method has uniform size and is not easy to agglomerate, but the shape is lack of control, and a large amount of organic solvent is used in the preparation process, which is easy to pollute the environment

Method used

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  • Flower-like CuS submicron spheres and ionic liquid microemulsion thermal synthesis method thereof
  • Flower-like CuS submicron spheres and ionic liquid microemulsion thermal synthesis method thereof
  • Flower-like CuS submicron spheres and ionic liquid microemulsion thermal synthesis method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] (1) Weigh raw materials according to the following weight percentages: copper nitrate 0.16% (0.16g), thiourea 0.24%, ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate 30.85%, soybean oil 0.60%, Octylphenyl polyoxyethylene ether 45.00%, n-butanol 23.15%.

[0046] (2) Under the condition of stirring at 30°C, add thiourea into 1-butyl-3-methylimidazolium tetrafluoroborate, and stir at a stirring speed of 500 rpm for 5 minutes to fully dissolve to obtain a clear and transparent mixture A;

[0047] (3) Under the condition of stirring at 25°C, mix copper nitrate, octylphenyl polyoxyethylene ether, n-butanol and soybean oil evenly, and stir at a stirring speed of 500 rpm for 5 minutes to obtain a clear and transparent mixture B ;

[0048] (4) Under the condition of stirring at 25°C, mix the mixture A and the mixture B evenly, and stir at a stirring speed of 500 rpm for 60 minutes to obtain a clear and transparent microemulsion C;

[0049] (5) Transfer the microemul...

Embodiment 2

[0053] (1) Weigh raw materials according to the following weight percentages: 0.38% (0.38g) of copper chloride, 0.62% of thiourea, 28.00% of ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate, epoxy soybean oil 0.80%, cetyltrimethylammonium bromide 52.00%, isobutanol 18.20%.

[0054] (2) Under the condition of stirring at 40°C, add thiourea into 1-butyl-3-methylimidazolium tetrafluoroborate, and stir at a stirring speed of 600 rpm for 7 minutes to fully dissolve to obtain a clear and transparent mixture A;

[0055] (3) Mix copper chloride, cetyltrimethylammonium bromide, isobutanol and epoxidized soybean oil evenly under stirring condition of 30°C, and stir at a stirring speed of 1000 rpm for 7 minutes to obtain Clear and transparent mixture B;

[0056] (4) Under the condition of stirring at 30°C, mix the mixture A and the mixture B evenly, and stir at a stirring speed of 1000 rpm for 70 minutes to obtain a clear and transparent microemulsion C;

[0057] (5) Transfe...

Embodiment 3

[0061] (1) Weigh raw materials according to the following weight percentages: copper naphthenate 2.100% (0.42g), thioacetamide 2.250%, ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate 18.750%, castor Sesame oil 1.900%, surfactant octylphenyl polyoxyethylene ether and 1-octyl-3-methylimidazolium chloride salt ionic liquid are mixed according to the mass ratio of 4:1, surfactant 60%, n-butanol 15% .

[0062] (2) Add thioacetamide to 1-butyl-3-methylimidazolium tetrafluoroborate under stirring at 40°C, and stir at a stirring speed of 800 rpm for 5 minutes to fully dissolve and obtain clear and transparent mixture A;

[0063] (3) Mix copper naphthenate, octylphenyl polyoxyethylene ether, 1-octyl-3-methylimidazolium chloride salt ionic liquid, n-butanol and castor oil evenly at 25°C to The stirring speed is 800 rpm, and stirring is carried out for 10 minutes to obtain a clear and transparent mixture B;

[0064] (4) Under the condition of stirring at 25°C, mix the mixtu...

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Abstract

The invention discloses flower-like CuS submicron spheres and an ionic liquid microemulsion thermal synthesis method thereof. The synthesis method mainly comprises the following steps: (1) adding a sulfur source into an ionic liquid, and heating, stirring and dissolving to obtain a mixture A; (2) uniformly mixing and stirring bivalent copper salt, a surfactant, a cosurfactant and vegetable oil toobtain a mixture B; (3) uniformly mixing and stirring the mixture A and the mixture B to obtain a microemulsion C; (4) transferring the microemulsion C into a hydrothermal reaction kettle with a polytetrafluoroethylene lining, sealing, placing at the temperature of 60-160 DEG C, carrying out a reaction for 2-24 h, and naturally cooling at room temperature to obtain a black solution; and (5) separating, washing and drying the black solution to obtain the final product black powder. The CuS particles prepared through ionic liquid microemulsion assisted thermal synthesis are of a flower-like submicron sphere structure, and are large in specific surface area, regular in morphology, uniform in size, high in crystallinity and high and stable in photocatalysis efficiency.

Description

technical field [0001] The invention relates to the field of preparation of CuS submicron spheres, in particular to a flower-shaped CuS submicron sphere and a thermal synthesis method of the ionic liquid microemulsion thereof. Background technique [0002] With the rapid development of industrial technology, the treatment of industrial wastewater is the focus of the current environmental protection field. Among them, organic matter occupies a large proportion of industrial wastewater. How to fundamentally realize the complete degradation of organic matter has attracted widespread attention at home and abroad. Photocatalysis Due to its high efficiency, energy saving and environmental protection, the technology is widely used in many fields such as degradation of organic matter, heavy metals, hydrolysis of hydrogen, etc. Photocatalysts have become a current research hotspot. [0003] Copper sulfide is a good semiconductor photocatalyst with a band gap of 1.2-2.0 eV. Due to t...

Claims

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Application Information

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IPC IPC(8): C01G3/12B01J27/04B01J35/02B01J35/08B01J35/10B01J37/10C02F1/30
CPCC01G3/12B01J27/04B01J37/0018B01J37/10C02F1/30C01P2002/72C01P2004/03C01P2002/84C01P2004/62C01P2006/12C01P2004/30C02F2305/10C02F2101/308B01J35/39B01J35/40B01J35/51B01J35/613
Inventor 陈砺李俞俊杰严宗诚
Owner SOUTH CHINA UNIV OF TECH
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