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Method for preparing Cu2O nanofilm by hydrothermal method

A technology of nano-film and hydrothermal method, which is applied in the direction of nano-technology, metal material coating technology, etc., to achieve the effect of excellent photoelectric performance, simple process and short cycle

Active Publication Date: 2018-08-07
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The reaction system used in this method has not been reported yet

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] (1) Take 5.00 mL of H with a concentration of 0.005 mol / L 2 o 2 The solution was mixed with 10.00 mL of absolute ethanol and put into a 20 mL reaction kettle.

[0010] (2) Put a Cu sheet with a size of 1.5 cm × 2.5 cm × 0.1 cm into the reaction kettle of step (1) and react at 90 °C for 1 hour, that is, a Cu with a photovoltage value of 0.0821 V is obtained on the Cu sheet. 2 O nano film.

Embodiment 2

[0012] (1) Take 5.00 mL of H with a concentration of 0.015 mol / L 2 o 2 The solution was mixed with 10.00 mL of absolute ethanol and put into a 20 mL reaction kettle.

[0013] (2) Put a Cu sheet with a size of 1.5 cm × 2.5 cm × 0.1 cm into the reaction kettle of step (1) and react at 120 °C for 4 hours, that is, a Cu with a photovoltage value of 0.2214 V is obtained on the Cu sheet. 2 O nano film.

Embodiment 3

[0015] (1) Take 5.00 mL of H with a concentration of 0.010 mol / L 2 o 2 The solution was mixed with 10.00 mL of absolute ethanol and put into a 20 mL reaction kettle.

[0016] (2) Put a Cu sheet with a size of 1.5 cm × 2.5 cm × 0.1 cm into the reaction kettle of step (1) and react at 150 °C for 6 hours, that is, a Cu with a photovoltage value of 0.2574 V is obtained on the Cu sheet. 2 O nano film.

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Abstract

The invention discloses a method for preparing a Cu2O nanofilm by a hydrothermal method. The method comprises the steps: (1) taking 5.00 mL of 0.005 to 0.2 mol / L H2O2 solution and 10.00 mL of absoluteethyl alcohol, evenly mixing and putting into a 20mL reaction kettle; (2) putting a Cu piece with the specification of 1.5cm*2.5cm*0.1cm into the reaction kettle in the step (1), and reacting for 1 to 12 hours under 90 to 180 DEG C to obtain the Cu2O nanofilm with a photovoltage value of 0.0821 to 0.2574 V on the Cu piece. According to the method disclosed by the invention, the hydrothermal method to oxidize the Cu piece and then reduce the Cu piece to synthesize the Cu2O film is disclosed for the first time; photovoltage of the Cu2O film can reach 0.2574V, and the Cu2O film has excellent photoelectric property; the method for preparing the Cu2O film has the advantages of not high requirements on raw materials and instruments, simple technology, short period and environment-friendly production process; photoelectric property of products is excellent.

Description

technical field [0001] The invention relates to a hydrothermal method for preparing Cu 2 O nanofilm method. Background technique [0002] With the increasingly severe energy problems, the development of solar energy field has attracted people's attention. Cu 2 As an excellent semiconductor photoelectric conversion material, O has a bandgap of about 2.1eV and can be effectively excited in the visible light region. In theory, the photoelectric conversion efficiency can reach 20%. It is a very potential solar cell material. Cu 2 In addition to its great potential in solar energy, O also has high research value in sensors, photocatalysis, and electrode materials. Currently, Cu 2 The main preparation methods of O nanomaterials include hydrothermal method, electrochemical method, magnetron sputtering method, sol-gel method, thermal oxidation method and so on. The waste liquid in the electrochemical production process is difficult to deal with; the magnetron sputtering method...

Claims

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Application Information

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IPC IPC(8): C23C22/52B82Y40/00
CPCB82Y40/00C23C22/52
Inventor 高云鹏钟福新黎燕江瑶瑶莫德清
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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