Method for preparing bismuth sulfide nanorod crystal material

A technology of crystal materials and nanorods, which is applied in the growth of polycrystalline materials, chemical instruments and methods, crystal growth, etc., to achieve the effect of clean products, simple operation procedures, and few controllable parameters

Inactive Publication Date: 2011-11-30
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] There is no report on the preparation of bismuth sulfide nanorod crystal materials by the compound nitrate solvent method

Method used

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  • Method for preparing bismuth sulfide nanorod crystal material
  • Method for preparing bismuth sulfide nanorod crystal material
  • Method for preparing bismuth sulfide nanorod crystal material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Concrete synthetic method of bismuth sulfide nanorod crystal material

[0027] The raw material for the synthesis of bismuth sulfide nanorod crystal material is LiNO 3 、KNO 3 , bismuth nitrate (Bi(NO 3 )3·5H 2 O), sodium sulfide (Na 2 S·9H 2 O), the step-by-step reaction that takes place is as follows:

[0028] Bi(NO 3 )3·5H 2 O → Bi 3+ +3NO 3- +5H 2 O,

[0029] Na 2 S·9H 2 O→2Na + +S 2- +9H 2 O,

[0030] 2 Bi 3+ +3S 2- → Bi 2 S 3 .

[0031] The specific operation steps are as follows:

[0032] Step 1, by weight percentage LiNO 3 = 42% and KNO 3 =58% weighed and mixed as a reaction solvent.

[0033] Step 2, press bismuth nitrate (Bi(NO 3 ) 3 ·5H 2 O) percent by weight=57.98%, sodium sulfide (Na 2 S·9H 2 O) % by weight = 41.02% weighed as reactant. The weight percent of reactants to reactants+reaction solvent was 0.9%.

[0034] Step 3, put the reaction raw materials of the above step 2 and the reaction solvent in the above step 1 into a po...

Embodiment 2

[0039] Concrete synthetic method of bismuth sulfide nanorod crystal material

[0040] The raw material for the synthesis of bismuth sulfide nanorod crystal material is LiNO 3 、KNO 3 , bismuth nitrate (Bi(NO 3 )3·5H 2 O), sodium sulfide (Na 2 S·9H 2 O), the step-by-step reaction that takes place is as follows:

[0041] Bi(NO 3 )3·5H 2 O → Bi 3+ +3NO 3- +5H 2 O,

[0042] Na 2 S·9H 2 O→2Na + +S 2- +9H 2 O,

[0043] 2 Bi 3+ +3S 2- → Bi 2 S 3 .

[0044] The specific operation steps are as follows:

[0045] Step 1, by weight percentage LiNO 3 = 10% and KNO 3 =90% Weighed and mixed as a reaction solvent.

[0046] Step 2, press bismuth nitrate (Bi(NO 3 ) 3 ·5H 2 O) percent by weight=10%, sodium sulfide (Na 2 S·9H 2 O) or weight percent of sulfur = 90% is weighed as reactant. The weight percentage of reactant to reactant+reaction solvent is 0.5%.

[0047] Step 3, put the reaction raw materials in the above step 2 and the reaction solvent in the above ste...

Embodiment 3

[0051] Concrete synthetic method of bismuth sulfide nanorod crystal material

[0052] The raw material for the synthesis of bismuth sulfide nanorod crystal material is LiNO 3 、KNO 3 , bismuth nitrate (Bi(NO 3 )3·5H 2 O), sodium sulfide (Na 2 S·9H 2 O), the step-by-step reaction that takes place is as follows:

[0053] Bi(NO 3 )3·5H 2 O → Bi 3+ +3NO 3- +5H 2 O,

[0054] Na 2 S·9H 2 O→2Na + +S 2- +9H 2 O,

[0055] 2 Bi 3+ +3S 2- → Bi 2 S 3 .

[0056] The specific operation steps are as follows:

[0057] Step 1, by weight percentage LiNO 3 = 90% and KNO 3 = 10% weighed and mixed as a reaction solvent.

[0058] Step 2, press bismuth nitrate (Bi(NO 3 ) 3 ·5H 2 O) weight percent=90%, sodium sulfide (Na 2 S·9H 2 O) or weight percent of sulfur = 10% weighed as reactant. The weight percentage of reactant to reactant+reaction solvent is 50%.

[0059] Step 3, put the reaction raw materials in the above step 2 and the reaction solvent in the above step 1 in...

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Abstract

The invention discloses a method for preparing bismuth sulfide nanorod crystal material, which is suitable for the preparation of sulfide nano crystal materials such as bismuth sulfide. The method is characterized in that it is synthesized by chemical reaction at normal pressure and 100-300°C with molten compound nitrate solvent, the raw materials used are soluble inorganic metal bismuth salt and sodium sulfide or sulfur powder, and the cost is low in the synthesis process , various parameters in the reaction process are easy to monitor and control, less environmental pollution, good uniformity of the reaction system, simple process, easy to scale up production; and the obtained bismuth sulfide has good crystallization, clean surface and uniform size, which is suitable for this process Research on characteristic properties and maximizing the function of nanocrystalline materials.

Description

technical field [0001] The invention relates to a preparation method of a bismuth sulfide nanorod crystal material, in particular to a method for preparing bismuth sulfide nanorods under low temperature and normal pressure conditions by using a composite nitrate solvent synthesis method. Background technique [0002] Nano metal sulfide crystal materials have semiconducting, luminescent and optoelectronic properties, and can be used in sensors, biomarkers, electronic devices, light emitting devices and optoelectronic devices. In the existing method for synthesizing sulfide, the composite solvothermal method (patent: 200510103028.9 and Langurir, 2006, 22, 7364), adopts hydroxide, fatty acid and multiple organic polar solvents to mix as synthetic solvent, with metal salt and Sodium sulfide is the raw material for synthesis. First prepare the reaction precursor, such as mixing a certain amount of sodium hydroxide with a small amount of oleic acid, then adding ethanol solution an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C30B29/46C30B29/62C30B9/00C01G29/00
Inventor 奚伊胡陈果王中林王雪
Owner CHONGQING UNIV
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