Method of preparing zinc oxide photocatalytic nanomaterial by template free method

A nanomaterial, template-free technology, applied in zinc oxide/zinc hydroxide, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problems of economic cost of pollution and achieve low cost , good photocatalytic effect, good dispersion effect

Inactive Publication Date: 2014-03-19
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Nevertheless, there are still many problems to be solved in the process of hydrothermal synthesis. For the preparation of nano-zinc oxide by hydrothermal method, factors such as the choice of template agent and raw materials, the concentration of reactants, reaction temperature, and reaction time not only affect The size, shape and performance of the product, but also concerns about pollution and economic cost

Method used

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  • Method of preparing zinc oxide photocatalytic nanomaterial by template free method
  • Method of preparing zinc oxide photocatalytic nanomaterial by template free method
  • Method of preparing zinc oxide photocatalytic nanomaterial by template free method

Examples

Experimental program
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Effect test

Embodiment 1

[0021] a. Weigh 0.01 mol of zinc nitrate and 1.5 mol of deionized water with an electronic balance, put them into a beaker and mix and stir evenly until the zinc nitrate is completely dissolved to obtain solution A;

[0022] b. Use a measuring cylinder to measure 10 ml of n-butylamine and 60 ml of ethanol respectively, put them into a beaker and mix them evenly to obtain solution B;

[0023] c. Add solution B to solution A dropwise, and continue to stir at room temperature for 1 h to obtain mixed solution C;

[0024] d. Put the C solution into a high-pressure reactor lined with polytetrafluoroethylene, and react at 120-180 °C for 6 h;

[0025] e. After the reaction is completed, the product is taken out from the reaction kettle, washed and centrifuged repeatedly with deionized water and ethanol, and dried at 80°C to obtain the uniformly dispersed strawberry-shaped zinc oxide nanomaterial prepared by the present invention .

[0026] The prepared samples were characterized for...

Embodiment 2

[0029] The preparation process and steps of this embodiment are basically the same as in Example 1, except that in steps a and b

[0030] a. Weigh 0.01 mol zinc nitrate and 3.0 mol deionized water respectively with an electronic balance, put them into a beaker and mix and stir evenly until the zinc nitrate is completely dissolved;

[0031] b. Use a graduated cylinder to measure 10 ml of n-butylamine and 30 ml of ethanol respectively, and mix them evenly.

[0032] The results obtained are slightly different from those in Example 1. The surface of the obtained zinc oxide nanoparticles is relatively smooth, and the particle size is also larger than that of the zinc oxide nanoparticles in Example 1.

[0033]

Embodiment 3

[0035] The preparation process and steps of this embodiment are basically the same as in Example 1, except that in step d

[0036] d. Put the above mixed solution into a polytetrafluoroethylene-lined autoclave and react at 160 °C for 1 h.

[0037] The obtained results are quite different from those in Example 1. The surface of the obtained zinc oxide particles is relatively smooth, the size is not very uniform, and the agglomeration is relatively serious.

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Abstract

The invention relates to a method for preparing a zinc oxide photocatalytic nanomaterial by a template-free method. According to the low-cost template-free method, raw materials include water, ethanol, zinc nitrate and n-butylamine, wherein zinc nitrate is a zinc source, water and ethanol serve as solvents, and n-butylamine is an alkali source, and a simple hydro-thermal synthesis method is carried out to finally obtain the zinc oxide nanomaterial with a unique spherical structure with coarse surface by adopting. Shown in XRD (X-Ray Diffraction) spectrogram, the prepared zinc oxide material has a typical wurtzite structure and is good in crystallization. The photocatalytic test results show that the prepared zinc oxide material has excellent photocatalytic performance, can effectively solve the problems of environmental pollution and the like, and further has a potential application prospect in the fields of energy sources, biomedicines and the like.

Description

technical field [0001] The invention relates to a method for preparing a zinc oxide photocatalytic nanometer material, in particular to a method for preparing a zinc oxide photocatalytic nanometer material by a template-free method. Background technique [0002] Zinc oxide is a typical semiconductor metal oxide material. Compared with ordinary zinc oxide products, nano-zinc oxide has a series of unique properties such as high activity, large specific surface area, adjustable material fineness, purity and material shape. It is used in many It is widely used in high-function inorganic materials at present. Due to the miniaturization of nano-zinc oxide particle size, the specific surface area will increase significantly, and the surface molecular arrangement, electronic structure and crystal structure will change, so that it has a series of excellent physical, chemical, surface and interface properties. It is widely used in light, electricity, catalysis and other aspects. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G9/02B01J23/06B82Y40/00B82Y30/00
Inventor 张海娇焦正周洪顺冯蓓胡赛王栋海
Owner SHANGHAI UNIV
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