Preparation method of nanometer cuprous oxide photocatalytic material based on silver modification

A nano-cuprous oxide, photocatalytic material technology, applied in electrodes, electrolysis processes, electrolysis components, etc., can solve the problems of not significantly improving the photoelectric conversion efficiency of semiconductor materials, the electron-hole recombination rate, and the complex operation, and achieve excellent performance. Operability and applicability, simple operation, the effect of overcoming technical difficulties

Inactive Publication Date: 2017-06-20
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method is complicated to operate and does not significantly improve the photoelectric conversion efficiency of semiconductor materials and the high electron-hole recombination rate.

Method used

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  • Preparation method of nanometer cuprous oxide photocatalytic material based on silver modification
  • Preparation method of nanometer cuprous oxide photocatalytic material based on silver modification
  • Preparation method of nanometer cuprous oxide photocatalytic material based on silver modification

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Effect test

Embodiment 1

[0055] A kind of preparation method of nano-cuprous oxide photocatalytic material based on silver modification of the present invention, specifically implement according to the following steps:

[0056] Step 1, prepare Cu 2 O film;

[0057] Clean the ITO conductive glass with acetone and ethanol sequentially in the ultrasonic instrument, use the cleaned ITO conductive glass as the working electrode, the reference electrode and the counter electrode are calomel electrode and platinum electrode respectively; 0.01mol / L copper sulfate solution and 0.1mol / L lactic acid solution, measure the configured copper sulfate solution 100mL, measure the configured lactic acid solution 50mL, put the two solutions under the ultrasonic electric power of 300W, Mix under ultrasonic conditions with a working frequency of 40KHz, let stand for 10min, and prepare Cu 2 O electrolyte; for the prepared Cu 2 Add NaOH solution with a concentration of 4 mol / L to the O electrolyte to adjust the pH to 10....

Embodiment 2

[0060] A kind of preparation method of nano-cuprous oxide photocatalytic material based on silver modification of the present invention, specifically implement according to the following steps:

[0061] Step 1, prepare Cu 2 O film;

[0062] Clean the ITO conductive glass with acetone and ethanol sequentially in the ultrasonic instrument, use the cleaned ITO conductive glass as the working electrode, the reference electrode and the counter electrode are calomel electrode and platinum electrode respectively; 0.03mol / L copper sulfate solution and 0.7mol / L lactic acid solution, measure 100mL of the configured copper sulfate solution and 40mL of the configured lactic acid solution. Mix under ultrasonic conditions with a working frequency of 50KHz, let stand for 5min, and prepare Cu 2 O electrolyte; for the prepared Cu 2 Add NaOH solution with a concentration of 4.5 mol / L to the O electrolyte to adjust the pH to 10.5; the pH-adjusted electrolyte was deposited in an electrochemica...

Embodiment 3

[0065] A kind of preparation method of nano-cuprous oxide photocatalytic material based on silver modification of the present invention, specifically implement according to the following steps:

[0066] Step 1, prepare Cu 2 O film;

[0067] Clean the ITO conductive glass with acetone and ethanol sequentially in the ultrasonic instrument, use the cleaned ITO conductive glass as the working electrode, the reference electrode and the counter electrode are calomel electrode and platinum electrode respectively; 0.05mol / L copper sulfate solution and 0.8mol / L lactic acid solution, measure 100mL of the configured copper sulfate solution, 38mL of the configured lactic acid solution, put the two solutions under the ultrasonic electric power of 500W, Mix under ultrasonic conditions with a working frequency of 50KHz, let stand for 7.5min, and prepare Cu 2 O electrolyte; for the prepared Cu 2 Add NaOH solution with a concentration of 5mol / L to the electrolyte of O to adjust the pH to 11...

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Abstract

The invention discloses a preparation method of a nanometer cuprous oxide photocatalytic material based on silver modification. The preparation method is specifically implemented according to the following steps that 1, a Cu2O thin film is prepared; and 2, the Cu2O thin film prepared in the step 1 is immersed in a silver nitrate solution to be reacted, and the Cu2O nanometer photocatalytic material modified by metallic silver is obtained. The nanometer Cu2O thin film containing metallic silver modification and prepared by the preparation method of the nanometer cuprous oxide photocatalytic material based on silver modification is high in stability and reusing rate.

Description

technical field [0001] The invention belongs to the technical field of preparation methods of photocatalytic materials, and relates to a preparation method of nano cuprous oxide photocatalytic materials based on silver modification. Background technique [0002] Nano-Cu 2 The band gap of O is about 2.1eV. It is a rare semiconductor material that can be excited by visible light. It is also a P-type semiconductor material with metal vacancy, which can effectively absorb light with wavelengths in the visible range, thereby generating photogenerated electrons and hole. When the energy used is greater than Cu 2 When the photo-excitation of the O band gap width, the electrons and holes will be transferred rapidly on the surface and inside of the semiconductor to oxidize or reduce the surface adsorbate, and then degrade various organic and inorganic pollutants into CO 2 and H 2 O, and no secondary pollution, so Cu 2 O has broad application prospects in the fields of environmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B11/08C25B1/00
CPCC25B1/55C25B11/093
Inventor 余晓皎王力波寇松李举张健张杰赵园园周文娜
Owner XIAN UNIV OF TECH
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