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Preparation method of micro/nano structure cadmium sulfide/aniline oligomer composite material

A technology of aniline oligomers and composite materials, applied in chemical instruments and methods, organic compounds/hydrides/coordination complex catalysts, chemical/physical processes, etc., to achieve universal applicability, large capacitance, and improved capacitance performance Effect

Active Publication Date: 2021-10-22
NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation of micro / nanostructured cadmium sulfide / aniline oligomer composites has not been reported so far.

Method used

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  • Preparation method of micro/nano structure cadmium sulfide/aniline oligomer composite material
  • Preparation method of micro/nano structure cadmium sulfide/aniline oligomer composite material
  • Preparation method of micro/nano structure cadmium sulfide/aniline oligomer composite material

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Effect test

Embodiment 1

[0034] Step 1, 1mmol cadmium nitrate, 2mmol thiourea, and 1mmol hexamethylenetetramine were dissolved in 100ml deionized water to prepare a solution, and the pH value of the solution was adjusted to 10;

[0035] Step 2. Transfer the above solution to a hydrothermal reaction kettle for heating, control the temperature at 200°C, and react for 8 hours, then naturally cool to room temperature and centrifuge at a speed of 10,000r / min, and wash the precipitate obtained by centrifugation with deionized water and ethanol 10 times, after drying, cadmium sulfide nanoparticles were prepared.

[0036] Step 3. Dissolve 10 mg of cadmium sulfide nanoparticles and 10 mg of aniline pentamer in 20 ml of dimethyl sulfoxide prepared in step 2, and stir magnetically for 20 min to obtain a dispersion, centrifuge at 8000 r / min, discard For the supernatant, the precipitate was dried in a vacuum drying oven at 60° C. for 14 hours to obtain a cadmium sulfide nanoparticle / aniline pentamer composite mate...

Embodiment 2

[0038] Step 1. Dissolve 5mmol cadmium sulfate, 2mmol cysteine, and 2mmol reduced glutathione in 200ml deionized water to prepare a solution, and adjust the pH value of the solution to 8;

[0039] Step 2. Transfer the above solution to a hydrothermal reaction kettle for heating, control the temperature at 260°C, and react for 6 hours, then naturally cool to room temperature and centrifuge at a speed of 8000r / min, and wash the precipitate obtained by centrifugation with deionized water and ethanol 10 times, after drying, cadmium sulfide microsheets were obtained.

[0040] Step 3. Dissolve 20 mg of cadmium sulfide microflakes and 10 mg of aniline tetramer in 50 ml of N,N-dimethylformamide prepared in step 2. After ultrasonication for 15 minutes, a dispersion is prepared, and centrifuged at 10,000 r / min. , discarding the supernatant, and drying the precipitate in an oven at 80°C for 8 hours to obtain a cadmium sulfide microsheet / aniline tetramer composite material;

Embodiment 3

[0042] Step 1, dissolve 1mmol cadmium nitrate, 1mmol cysteine, and 1mmol hexamethylenetetramine in 100ml deionized water to prepare a solution, and adjust the pH value of the solution to 7;

[0043] Step 2. Transfer the above solution to a hydrothermal reaction kettle for heating, control the temperature at 200°C, react for 4 hours, cool to room temperature naturally and centrifuge at a speed of 12000r / min, and wash the precipitate obtained by centrifugation with deionized water and ethanol 10 times, after drying, cadmium sulfide micron particles were obtained.

[0044] Step 3, 10 mg of cadmium sulfide micron particles prepared in step 2, 10 mg of aniline heptamer were dissolved in 10 ml of ethanol, magnetically stirred for 30 min to obtain a dispersion, centrifuged at 8000 r / min, discarded the supernatant, The precipitate was dried in a vacuum oven at 50°C for 12 hours to obtain a cadmium sulfide microparticle / aniline heptamer composite material;

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Abstract

A kind of preparation method of micro / nano structure cadmium sulfide / aniline oligomer composite material, it is characterized in that: first prepare micro / nano structure cadmium sulfide material by hydrothermal method, then micro / nano structure cadmium sulfide and aniline oligomer Dissolved in an organic solvent and mixed thoroughly, using π‑π stacking and electrostatic interaction to form a micro / nano structure cadmium sulfide / aniline oligomer composite material dispersion, and finally remove the solvent to obtain a composite material. A kind of micro / nano structure cadmium sulfide / aniline oligomer composite material can be obtained by adopting the method of the present invention. Cadmium sulfide and aniline oligomers have larger capacitance and significantly improved photoelectric response performance.

Description

technical field [0001] The invention relates to a preparation method of a micro / nano structure cadmium sulfide / aniline oligomer composite material, which belongs to the field of micro / nano material preparation. Background technique [0002] Cadmium sulfide (CdS) is an excellent semiconductor material with a band gap of 2.42eV and excellent photoelectrochemical properties, and its photoelectric properties will vary with its grain size and shape. Sensing and other optoelectronic devices have attractive application prospects. Using different preparation methods and conditions to obtain cadmium sulfide semiconductor materials with different micro / nano structures has always been one of the research hotspots in the field of inorganic semiconductor materials. Among them, the hydro / solvothermal method is a common method for the controllable preparation of cadmium sulfide materials. On the other hand, cadmium sulfide particles are easy to agglomerate, and are prone to photocorrosion...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/26B01J35/02H01L51/46H01L51/42
CPCB01J31/26B01J35/0033B01J35/004B01J35/026H10K85/111Y02E10/549
Inventor 邓萌陈飞陈珏
Owner NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
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