Method for preparing bismuth sulfide nano-rod crystalline material

A technology of crystal materials and nanorods, applied in the growth of polycrystalline materials, chemical instruments and methods, crystal growth, etc., to achieve the effects of easy research, few controllable parameters, and environmental protection

Inactive Publication Date: 2009-12-30
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

Method used

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  • Method for preparing bismuth sulfide nano-rod crystalline 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) percent by weight=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...

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PUM

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Abstract

The invention discloses a method for preparing a bismuth sulfide nano-rod crystalline material, wherein the method is suitable for preparing nano-crystalline materials of bismuth sulfide and other sulfides. The method is characterized in that molten compound nitrate solvent is utilized; the crystalline material is synthesized through chemical reaction under normal pressure and at a temperature of 100-300 DEG C; raw materials used in the method include soluble inorganic metal bismuth salt and sodium sulfide or sulfur powder; the cost during the synthesis is simple; various parameters in the reaction process are easy to monitor and control; little environment pollution is caused; a reaction system has good uniformity; the process is simple and the production can be easily expanded; obtained bismuth sulfide realizes good crystallization, clean surface and uniform size and is suitable for conducting researches on intrinsic properties thereof and bringing the functions of nano-crystalline materials into maximum play.

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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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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