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Preparation method of hollow micron-cage structure MoO3 nanometer material

A nano-material, hollow technology, applied in the field of preparation of hollow micro-cage structure MoO3 nano-materials, to achieve the effect of small crystal size, simple process and safe operation

Active Publication Date: 2014-04-30
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Stir for a certain period of time after each addition of medicine

Method used

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  • Preparation method of hollow micron-cage structure MoO3 nanometer material
  • Preparation method of hollow micron-cage structure MoO3 nanometer material
  • Preparation method of hollow micron-cage structure MoO3 nanometer material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Add 50ml of deionized water to 50ml of absolute ethanol, stir well and add 1.24g of (NH 4 ) 6 Mo 7 o 24 4H 2 O, after stirring for 20 minutes with a magnetic stirrer, 0.02mol / L of (NH 4 ) 6 Mo 7 o 24 solution. Then add 0.2 g K to the solution 3 PO 4 The solid was stirred for 50 minutes with a magnetic stirrer;

[0028] (2) Add 2.2mol / L of HNO dropwise to the mixed solution described in step (1) 3 solution, adjust the pH to 1.5, then stir with a magnetic stirrer for 30 minutes;

[0029] (3) Transfer the solution obtained in step (2) to a hydrothermal kettle, heat it at 160°C for 20 hours, and then cool it with the furnace. Then the obtained solution was centrifuged, and the obtained precipitate was washed with deionized water and absolute ethanol for 6 times respectively, and the washed precipitate was dried at 60°C for 20 hours, and then ground into powder to obtain a hollow micron cage Structure MoO 3 nanomaterials.

[0030] figure 1 a is the X-ray ...

Embodiment 2

[0033] (1) Add 50ml of deionized water to 50ml of absolute ethanol, stir well and add 1.24g of (NH 4 ) 6 Mo 7 o 24 4H 2 O, after stirring for 20 minutes with a magnetic stirrer, 0.02mol / L of (NH 4 ) 6 Mo 7 o 24 solution. Then add 0.4 g K to the solution 3 PO 4 The solid was stirred for 50 minutes with a magnetic stirrer;

[0034] (2) Add 2.2mol / L of HNO dropwise to the mixed solution described in step (1) 3 solution, adjust the pH to 1.5, then stir with a magnetic stirrer for 30 minutes;

[0035] (3) Transfer the solution obtained in step (2) to a hydrothermal kettle, heat it at 180°C for 20 hours, and then cool it with the furnace. Then the obtained solution was centrifuged, and the obtained precipitate was washed with deionized water and absolute ethanol for 6 times, and the washed precipitate was dried at 60°C for 20 hours, and then ground into powder to obtain the hollow micron cage Structure MoO 3 nanomaterials.

[0036] figure 1 b is the X-ray diffraction p...

Embodiment 3

[0039] (1) Add 50ml of deionized water to 50ml of absolute ethanol, stir well and add 1.24g of (NH 4 ) 6 Mo 7 o 24 4H 2 O, after stirring for 20 minutes with a magnetic stirrer, 0.02mol / L of (NH 4 ) 6 Mo 7 o 24 solution. Then add 0.4g K to the AHM solution 3 PO 4 The solid was stirred for 50 minutes with a magnetic stirrer;

[0040] (2) Add 2.2mol / L of HNO dropwise to the mixed solution described in step (1) 3 solution, adjust the pH of the solution to 1.5, and stir with a magnetic stirrer for 30 minutes;

[0041] (3) Transfer the solution obtained in step (2) to a hydrothermal kettle, heat it at 180°C for 24 hours, and then cool it with the furnace. Then the obtained solution was centrifuged, and the obtained precipitate was washed with deionized water and absolute ethanol for 6 times respectively, and the washed precipitate was dried at 60°C for 20 hours, and then ground into powder to obtain the hollow micron cage Structure MoO 3 nanomaterials.

[0042] figu...

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Abstract

The invention relates to a preparation method of a hollow micron-cage structure MoO3 nanometer material. The preparation method comprises the following steps of: preparing 0.02mol / L of (NH4) 6Mo7O24, and adding 0.1-0.6g of K3PO4 after stirring; after completely dissolving, adjusting the pH value of the system by a HNO3 solution to 1-3; and heating, centrifuging, washing and drying an obtained solution, and grinding to obtain the MoO3 nanometer material. The preparation method of the hollow micron-cage structure MoO3 nanometer material has the advantages of simple technology, low requirement for equipment, strong operability and lower cost and can be used for synthesizing lots of the materials. The hollow micron-cage structure MoO3 nanometer material prepared by the method has a larger superficial area, a smaller crystal size, stable performance and wide application prospect and is not easy to aggregate.

Description

technical field [0001] The invention belongs to the technical field of functional materials, in particular to a hollow micron cage structure MoO 3 Preparation methods of nanomaterials. Background technique [0002] In recent years, transition metal oxides such as MoO 3 , WO 3 , NiOx, and V 2 o 5 , has received extensive attention due to its special optical, magnetic and electrical characteristics. As the most studied and widely used molybdenum compound, molybdenum trioxide (MoO 3 ) is an important wide-bandgap (3.2 eV) n-type semiconductor functional material. MoO 3 It has a layered structure and framework, and there are extensive channels, which can be used as ion circulation channels and embedded sites. Open MoO 3 Both the crystal structure and its hydrate are H + , Li + and other ions are good ion implantation hosts. In addition, MoO 3 The film has good absorption capacity in the visible light region and good reversible discoloration. These excellent proper...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G39/02B82Y40/00
Inventor 贺琼瑶曾文吴明玉苟中平苗斌
Owner CHONGQING UNIV
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