Multifunctional ultrasonic microwave collaborative chemical reactor and method for preparing nano semiconductor chalcogenide by using same

A technology of ultrasonic microwave synergy and chemical reactor, applied in the preparation of sulfide/polysulfide, chemical/physical/physicochemical process of energy application, binary selenium/tellurium compound, etc., can solve discharge phenomenon, high frequency Short circuit and other problems, to overcome overheating carbonization, reduce bonding force, and reduce production costs

Inactive Publication Date: 2010-05-26
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem solved by the present invention is to overcome the technical problems of the discharge phenomenon and "high-frequency short circuit" of the metal pipe fittings in the ultrasonic microwave synergistic chemical reactor in the prior art and provide a high-strength, low-noise , variable frequency and power, a multifunctional ultrasonic microwave synergistic chemical reaction device that can work at low temperature and normal pressure, and a method for preparing nano-semiconductor chalcogenides using this multifunctional ultrasonic microwave synergistic chemical reactor

Method used

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  • Multifunctional ultrasonic microwave collaborative chemical reactor and method for preparing nano semiconductor chalcogenide by using same
  • Multifunctional ultrasonic microwave collaborative chemical reactor and method for preparing nano semiconductor chalcogenide by using same
  • Multifunctional ultrasonic microwave collaborative chemical reactor and method for preparing nano semiconductor chalcogenide by using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Synthesis of Nano PbTe

[0051] Raw materials: analytically pure Pb(NO 3 ) 2 , Na 2 TeO 3 , ethylene glycol, ethylenediamine.

[0052] Experimental steps:

[0053] (1) Pb(NO 3 ) 2 Soluble in the mixed solution of ethylene glycol and ethylenediamine (V 乙二胺 :V 乙二醇 =0~1∶5), it is formulated into 0.01~0.1M Pb(NO 3 ) 2 solution, the Na 2 TeO 3 Soluble in the mixed solution of ethylene glycol and ethylenediamine (V 乙二胺 :V 乙二醇 =0~1:5), it is also formulated to be 0.01~0.1M Na 2 TeO 3 The solution.

[0054] (2) the above Pb (NO 3 ) 2 solution and Na 2 TeO 3 Take 20 mL of each solution (the molar ratio of the two is 1:1) and pour it into a reaction vessel, add 20 mL of ethylene glycol, and stir magnetically for 30-120 min to make it clear.

[0055] (3) The mixed solution in (2) was then placed in a microwave resonant cavity, the power of the microwave resonant cavity was set to 400W, the temperature was 140°C, the ultrasonic power was 400W, reacted for 30min...

Embodiment 2

[0059] Synthesis of Nano-Sb by Ultrasonic-Microwave Synergistic Chemical Method 2 Te 3

[0060] Raw materials: analytically pure Sb(CH 3 COO) 3 , Na 2 TeO 3 , ethylene glycol, ethylenediamine.

[0061] Experimental steps:

[0062] (1) Sb(CH 3 COO) 3 Soluble in the mixed solution of ethylene glycol and ethylenediamine (V 乙二胺 :V 乙二醇 =0~1:5), it is formulated to be 0.01~0.1M Sb(CH 3 COO) 3 solution, the Na 2 TeO 3 Soluble in the mixed solution of ethylene glycol and ethylenediamine (V 乙二胺 :V 乙二醇 =0~1:5), it is also formulated to be 0.01~0.1M Na 2 TeO 3 The solution.

[0063] (2) the above Sb (CH 3 COO) 3 solution and Na 2 TeO 3 Take 20 mL of each solution (the molar ratio of the two is 2:3) and pour it into a reaction vessel, add 20 mL of ethylene glycol, and stir magnetically for 30-120 min to make it clear.

[0064] (3) The mixed solution in (2) was then placed in a microwave resonant cavity. The power of the microwave resonant cavity was set to 400W, the...

Embodiment 3

[0068] Synthetic Nano Bi 2 Te 3

[0069] Raw materials: analytically pure Bi(NO 3 ) 3 , Na 2 TeO 3 , ethylene glycol, ethylenediamine.

[0070] (1) Bi(NO 3 ) 3 Dissolved in ethylene glycol to make 0.01~0.1M Bi(NO 3 ) 3 solution, the Na 2 TeO 3 Soluble in the mixed solution of ethylene glycol and ethylenediamine (V 乙二胺 :V 乙二醇 =0~1:5) to make 0.01~0.1M Na 2 TeO 3 The solution.

[0071] (2) the above Bi(NO 3 ) 3 solution and Na 2 TeO 3 Take 20 mL of each solution (the molar ratio of the two is 2:3) and pour it into a reaction vessel, then add 20 mL of ethylene glycol, and stir magnetically for 30-120 min to make it clear.

[0072] (3) The mixed solution in (2) was then placed in a microwave resonant cavity, the power of the microwave resonant cavity was set to 400W, the temperature was 140°C, the ultrasonic power was 400W, reacted for 30min, and allowed to cool naturally to room temperature.

[0073] (4) The above black deposit was repeatedly washed with abso...

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Abstract

The invention discloses a multifunctional ultrasonic microwave collaborative chemical reactor and a method for preparing a nano semiconductor chalcogenide by using the same. The multifunctional ultrasonic microwave collaborative chemical reactor comprises an ultrasonic generator, a microwave generator, a temperature/time/power display control device, a reaction vessel, a condensing device, a microwave resonator, a microwave shielding device, an air exhausting and air feeding device, and a reaction vessel supporting and lifting device. The chemical reactor has the advantages of uniform vibration, consistent action stressed by all the points in a sample medium, many varieties of selectable extraction solvents, wide range of targets, reduction of the binding force of the targets and sample substrates; accelerated process of the targets from solid phase to solvent phase, large processed sample amount and the like. The chemical reactor can overcome the phenomenon of overheat charring, and can obtain more uniform and better-quality products than single microwave reaction. The chemical reactor has wide application prospect in the fields of chemistry and chemical industry, pharmacy, materials, energy sources, food processing and the like.

Description

technical field [0001] The invention relates to the technical field of chemical reaction equipment and material preparation, in particular to a high-intensity, low-noise, variable frequency and power multifunctional ultrasonic microwave synergistic chemical reactor and a method for preparing nano-semiconductor chalcogen compounds. Background technique [0002] Rapid, efficient, and controllable synthesis of drugs, organic compounds, inorganic compounds, and nanomaterials is currently a hot topic in the fields of chemistry, materials, and physics. Controlling the synthesis of target products in the liquid phase is the focus of people's attention. Because the liquid phase method is cheap and efficient, it is easy to realize industrialization. Among these many liquid phase synthesis methods, the application and development of ultrasonic technology and microwave technology are relatively extensive. [0003] The effect of ultrasonic waves on chemical reactions is mainly from ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/10C01B19/04C01B17/20
Inventor 郭万林台国安
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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