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a rod-shaped cu x oPhotocatalytic materials and their preparation methods and applications

A photocatalytic material and rod-shaped technology, applied in the field of photocatalytic materials, can solve the problems of low photocatalytic antibacterial efficiency and high cost, and achieve large-scale industrial production, good antibacterial effect, high practical application value and application prospect Effect

Active Publication Date: 2022-03-15
QUANZHOU NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of rod-shaped Cu x O photocatalytic materials and their preparation methods and applications, intending to solve the problems of high cost of traditional composite materials and low antibacterial efficiency of visible light photocatalysis

Method used

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  • a rod-shaped cu <sub>x</sub> oPhotocatalytic materials and their preparation methods and applications
  • a rod-shaped cu <sub>x</sub> oPhotocatalytic materials and their preparation methods and applications
  • a rod-shaped cu <sub>x</sub> oPhotocatalytic materials and their preparation methods and applications

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preparation example Construction

[0030] A rod-shaped Cu x The preparation method of O photocatalytic material, comprises the following steps:

[0031] (1) Add anhydrous copper sulfate, cetyltrimethylammonium bromide and water into a beaker, stir well to obtain a mixed solution; the concentration of anhydrous copper sulfate in the mixed solution is 0.01 ~ 2.00 mol / L, cetyl The concentration of alkyltrimethylammonium bromide is 0.001 ~ 0.1 mol / L;

[0032] (2) Add the egg film into the above beaker, stir evenly to obtain a suspension, the concentration of the egg film in the suspension is 0.1-10 mg / mL;

[0033] Wherein, the treatment method of the egg membrane is as follows: take out the egg white and egg yolk from the egg to obtain the eggshell, remove the egg membrane in the eggshell by physical stripping, wash the egg membrane with deionized water, dry it, and cut it into a size of 1 ~ 1.2 cm × 1 ~ 1.2 cm;

[0034] (3) Transfer the suspension above to the eggshell, then place the eggshell in a beaker fille...

Embodiment 1

[0039] A rod-shaped Cu x The preparation method of O photocatalytic material, comprises the following steps:

[0040] (1) Add anhydrous copper sulfate, cetyltrimethylammonium bromide and water into a beaker, stir well to obtain a mixed solution; the concentration of anhydrous copper sulfate in the mixed solution is 0.01 mol / L, cetyl The concentration of trimethylammonium bromide is 0.1 mol / L;

[0041] (2) Add the egg film into the above beaker, stir evenly to obtain a suspension, the concentration of the egg film in the suspension is 2.5 mg / mL;

[0042] (3) Transfer the suspension above to eggshells, then place the eggshells in a beaker filled with 1 mol / L sodium hydroxide solution, and transfer the beaker to an oil bath, and place in an oil bath at 50 °C React for 96 hours;

[0043](4) Centrifuge the solution obtained after the reaction, collect the product, wash it with distilled water and ethanol in sequence, and dry it to obtain a sample;

[0044] (5) The above samples...

Embodiment 2

[0046] A rod-shaped Cu x The preparation method of O photocatalytic material, comprises the following steps:

[0047] (1) Add anhydrous copper sulfate, cetyltrimethylammonium bromide and water into a beaker, stir well to obtain a mixed solution; the concentration of anhydrous copper sulfate in the mixed solution is 0.01 mol / L, cetyl The concentration of trimethylammonium bromide is 0.15 mol / L;

[0048] (2) Add the egg film into the above beaker, stir evenly to obtain a suspension, the concentration of the egg film in the suspension is 2.5 mg / mL;

[0049] (3) Transfer the suspension above to eggshells, then place the eggshells in a beaker filled with 1 mol / L sodium hydroxide solution, and transfer the beaker to an oil bath, and place in an oil bath at 50 °C React for 96 hours;

[0050] (4) Centrifuge the solution obtained after the reaction, collect the product, wash it with distilled water and ethanol in sequence, and dry it to obtain a sample;

[0051] (5) The above sampl...

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Abstract

The invention discloses a rod-shaped Cu x O photocatalytic material and its preparation method and application, the method is as follows: (1) adding anhydrous copper sulfate, cetyltrimethylammonium bromide and water into a beaker, stirring evenly to obtain a mixed solution; (2) Add the egg membrane into the beaker, stir evenly to obtain a suspension; (3) transfer the suspension to the eggshell and place it in a beaker filled with sodium hydroxide solution, and then carry out an oil bath reaction; (4) transfer the obtained The solution is centrifuged, the product is collected, washed, and dried to obtain a sample; (5) The sample is calcined to obtain a copper-based photocatalytic material for visible light photocatalytic antibacterial. The present invention uses egg shells as a reactor to prepare Cu under mild conditions. x O rod-shaped photocatalytic material, the rod-shaped structure makes the obtained material have a larger specific surface area, and at the same time exposes more surface active sites, effectively improving its visible light photocatalytic antibacterial activity.

Description

technical field [0001] The invention belongs to the technical field of photocatalytic materials, in particular to a rod-shaped Cu x O photocatalytic materials and their preparation methods and applications. Background technique [0002] At present, the safety of drinking water has attracted worldwide attention, especially the deadly threat of bacteria and pathogenic microorganisms to the human body, resulting in the death of thousands of people every year from diseases or disabilities caused by pathogenic microorganisms. In nature, solar energy has a huge content and is a recyclable energy source. Using solar energy to solve photocatalytic sterilization has been proved to be an economical, effective and environmentally friendly method to kill pathogenic microorganisms in water pollution. At present, a large number of semiconductor photocatalysts and their derivatives have been proven to exhibit good activity in the photocatalytic antibacterial process. However, investigati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/72A61L2/08A01N59/20A01N59/00A01P1/00
CPCB01J23/72A61L2/088A01N59/20A01N59/00B01J35/39
Inventor 张晓艳杨大鹏罗时建林秋琼
Owner QUANZHOU NORMAL UNIV
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