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A kind of α-moo 3 Preparation method of nano hollow sphere

A technology of hollow spheres and nanospheres, applied in the direction of nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve problems such as human health and surrounding environment impact, harsh reaction conditions, cumbersome steps, etc. Strong repeatability, simple operation, and quicker sensitive response

Active Publication Date: 2021-08-17
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional preparation of α-MoO 3 Most methods of nanomaterials require cumbersome steps, expensive instruments and harsh reaction conditions, and use volatile and toxic reagents, which have an impact on human health and the surrounding environment

Method used

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  • A kind of α-moo <sub>3</sub> Preparation method of nano hollow sphere

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Experimental program
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Effect test

Embodiment 1

[0027] an α-MoO 3 Preparation method of nano hollow spheres, the α-MoO 3 The preparation method of nano hollow spheres is a stirring synthesis method at room temperature, and the α-MoO 3 The structure of α-MoO is a three-dimensional multi-level spherical structure formed by stacking multiple microsheet building units. 3 The diameter of nano hollow sphere is 200nm, and the specific steps of normal temperature stirring synthesis method are as follows:

[0028] (1) Will (NH 4 ) 6 MoO 7+ 4H 2 After O and dopamine hydrochloride are dissolved in water and mix well, add ethanol solution while stirring and continue to stir to obtain mixed solution; (NH 4 ) 6 MoO 7+ 4H 2 The quality of O is 150 mg, the quality of dopamine hydrochloride is 30 mg, the volume of the water is 20 ml, the volume of the ethanol is 30 ml, the mixing and stirring time is 8 min, and the stirring time after adding the ethanol solution is 3 min.

[0029] (2) After quickly adding 20ml of ammonia water to ...

Embodiment 2

[0033] an α-MoO 3 Preparation method of nano hollow spheres, the α-MoO 3 The preparation method of nano hollow spheres is a stirring synthesis method at room temperature, and the α-MoO 3 The structure of α-MoO is a three-dimensional multi-level spherical structure formed by stacking multiple microsheet building units. 3 The diameter of nano hollow sphere is 400nm, and the specific steps of normal temperature stirring synthesis method are as follows:

[0034] (1) Will (NH 4 ) 6 MoO 7+ 4H 2 After O and dopamine hydrochloride are dissolved in water and mix well, add ethanol solution while stirring and continue to stir to obtain mixed solution; (NH 4 ) 6 MoO 7+ 4H 2 The quality of O is 250mg, and the quality of described dopamine hydrochloride is 60mg, and the volume of described water is 30ml, and the volume of described ethanol is 50ml, and the duration of described mixing and stirring is 15min, and the duration of stirring after adding ethanol solution is 8min.

[003...

Embodiment 3

[0039] an α-MoO 3 Preparation method of nano hollow spheres, the α-MoO 3 The preparation method of nano hollow spheres is a stirring synthesis method at room temperature, and the α-MoO 3 The structure of α-MoO is a three-dimensional multi-level spherical structure formed by stacking multiple microsheet building units. 3 The diameter of nano hollow sphere is 300nm, and the specific steps of normal temperature stirring synthesis method are as follows:

[0040] (1) Will (NH 4 ) 6 MoO 7+ 4H 2 After O and dopamine hydrochloride are dissolved in water and mix well, add ethanol solution while stirring and continue to stir to obtain mixed solution; (NH 4 ) 6 MoO 7+ 4H 2 The quality of O is 200mg, and the quality of described dopamine hydrochloride is 40mg, and the volume of described water is 25ml, and the volume of described ethanol is 40ml, and the duration of described mixing and stirring is 10min, and the duration of stirring after adding ethanol solution is 5min.

[004...

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Abstract

The invention discloses a synthetic α-MoO 3 The preparation method of nano hollow sphere, the starting material is (NH 4 ) 6 MoO 7 ·4H 2 O, dopamine hydrochloride, deionized water, ethanol and ammonia; the preparation process includes hydrothermal, solvothermal, ultrasonic, centrifugation, washing, drying, and annealing; the prepared α-MoO 3 The diameter of the hollow sphere is 200 to 400 nm. The beneficial results of the present invention are: the raw materials are cheap and easy to obtain, the preparation method is environmentally friendly, the hydrothermal / solvothermal temperature is low, the energy consumption is low, the operation is simple, the repeatability is strong, and the yield is high, which is suitable for mass production; The large surface can give the material a larger specific surface and accelerate the sensitive reaction of the material surface. The nano hollow sphere material of the present invention has good application prospects in both photocatalysts and catalyst carriers.

Description

technical field [0001] The invention relates to the technical field of nanomaterials, in particular to a kind of α-MoO 3 Preparation method of nano hollow spheres. Background technique [0002] In recent years, the development of nanotechnology has greatly promoted the development and application of functional materials. The size, morphology and composition of nanomaterials will greatly affect their properties, thereby affecting their application prospects. So far, researchers have used many physical and chemical methods to develop nanomaterials from zero-dimensional and one-dimensional to multi-dimensional, forming many rich shapes. At the same time, the modulation of nano-components has also aroused great interest of researchers. , has become a new hotspot in the research of nanomaterials. α-MoO 3 As a typical n-type metal oxide semiconductor, it has a wide band gap (3.37ev) and a large excitation binding energy (60meV). It is used in ultraviolet / blue light emitters, s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G39/02B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C01G39/02C01P2004/03C01P2004/34C01P2004/64
Inventor 王丽伟符浩邵红云黄敏旋韦悦周王英辉余克服
Owner GUANGXI UNIV