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Synthesizing method for zinc oxide nanometer materials

A technology of zinc oxide nanometer and synthesis method, applied in the direction of zinc oxide/zinc hydroxide, etc., can solve the problems of reducing the specific surface area of ​​nanometer ZnO, easy agglomeration of nanometer ZnO, difficult to function at the same time, etc., and achieves simple operation and easy industrialization. Effect

Active Publication Date: 2014-04-23
江苏汇诚医疗科技有限公司
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  • Summary
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Zinc oxide (ZnO) is an important semiconductor material. In the liquid-phase synthesis process of nano-scale ZnO, single-chain surfactants (such as CTAB, SDS, SDBS) and water-soluble polymers (such as PVP, PEG ) as a dispersant, the obtained nano-ZnO can remove the protective agent after washing, but the nano-ZnO without protective layer is easy to agglomerate in use, thereby significantly reducing the specific surface area of ​​nano-ZnO
At the same time, the use of common surfactants or dispersants is difficult to simultaneously control the synthesis of ZnO morphology and maintain a high specific surface area.

Method used

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  • Synthesizing method for zinc oxide nanometer materials
  • Synthesizing method for zinc oxide nanometer materials
  • Synthesizing method for zinc oxide nanometer materials

Examples

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example 1

[0030] Example 1: 10g of 2,8,14,20-tetraalkyl-resorcinol calix[4]-5,11,17,23-sodium tetramethanesulfonate, 72.7g of zinc nitrate and 583.8g of Add concentrated ammonia water into 37805g water to dissolve, mix and dissolve, heat to 97-101°C to achieve reflux, keep warm for 3-4 hours, and centrifuge to obtain a solid.

[0031] Dry the solid in a vacuum oven at 50-70° C. for 12-14 hours to obtain 30.9 g of nanometer zinc oxide.

example 2

[0032] Example 2: 10g of 2,8,14,20-tetrapropyl-resorcinol calix[4]-5,11,17,23-sodium tetramethanesulfonate, 73g of zinc acetate and 583.5g of concentrated Add ammonia water to 37810g water to dissolve, mix and dissolve, heat to 97-101°C to achieve reflux, keep warm for 3-4 hours, and then centrifuge to obtain a solid.

[0033] Dry the solid in a vacuum oven at 50-70° C. for 12-14 hours to obtain 31.3 g of nanometer zinc oxide.

example 3

[0034] Example 3: 10g of 2,8,14,20-tetrahexyl-resorcinol calix[4]-5,11,17,23-sodium tetramethanesulfonate, 75g of zinc sulfate and 583.5g of concentrated ammonia Add it into 37810g water to dissolve, mix and dissolve, heat to 97-101°C to achieve reflux, keep warm for 3-4 hours, and centrifuge to obtain a solid.

[0035] Dry the solid in a vacuum oven at 50-70° C. for 12-14 hours to obtain 32.2 g of nanometer zinc oxide.

[0036] 3. Product identification:

[0037] 1, Figure 1 to Figure 5 The FE-SEM, TEM and HR-TEM photos of the ZnO dumbbell balls were given.

[0038] from Figures 1 to 5 It can be seen that by adopting the process of the present invention, the obtained zinc oxide material has a nanostructure.

[0039] 2. Put the purified ZnO powder into a corundum crucible and place it in a muffle furnace, and calcinate at 500-800°C for 5-8 hours to obtain mesoporous ZnO micro-nano crystals. Then proceed to product identification:

[0040] Image 6 , 7 The FE...

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Abstract

The invention relates to a synthesizing method for zinc oxide nanometer materials, particularly to a synthesizing method for zinc oxide nanometer mesoporous materials. The method comprises the steps: mixing zinc salt and stronger ammonia water to settled solution in a backflow way at the ordinary pressure; using a micelle formed by a calix[4]resorcinol methanesulfinic acid sodium type surface active agent as a template; carrying out the fixing and the gathering of zinc ions by the electrostatic attraction of hydrophilic group sulfoacid anions of the surface active agent to zinc ammonia complex anions; depositing ZnO nanometer particles during the procedure of the ammonia gas removal by the way of backflow, and forming dumbbell-shaped ZnO nanometer particles. Because the calix[4]resorcinol methanesulfinic acid sodium type surface active agent and the micelle thereof are in big-calix cavity, multi-head and multi-tail structures, the formation of the dumbbell-shaped particles can be participated in a frame way during the synthesizing procedure of the ZnO nanometers. The method is easy to operate, and is suitable for industrialization.

Description

technical field [0001] The invention relates to a synthesis method of zinc oxide nanometer mesoporous material. Background technique [0002] Zinc oxide (ZnO) is an important semiconductor material. In the liquid-phase synthesis process of nano-scale ZnO, single-chain surfactants (such as CTAB, SDS, SDBS) and water-soluble polymers (such as PVP, PEG ) as a dispersant, the obtained nano-ZnO can remove the protective agent after washing, but the nano-ZnO without protective layer is easy to agglomerate in use, thereby significantly reducing the specific surface area of ​​nano-ZnO. At the same time, the use of common surfactants or dispersants is difficult to simultaneously control the synthesis of ZnO morphology and maintain a high specific surface area. Contents of the invention [0003] The purpose of the present invention is to propose a synthesis method capable of controlling the morphology and size of the prepared nano-ZnO and obtaining a zinc oxide nano-material with a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G9/02
Inventor 沈明景崤壁王小三李敏丁兆兵
Owner 江苏汇诚医疗科技有限公司
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