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A kind of petal-shaped cuprous oxide and its preparation method and application

A cuprous oxide and petal-shaped technology, which is applied in the field of petal-shaped cuprous oxide and its preparation, can solve the problems of large power or heat consumption, complicated operation, etc., and achieve the effect of low cost, simple operation and high energy utilization rate

Inactive Publication Date: 2018-04-10
SOUTH CHINA NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, wet chemical methods, photochemical synthesis methods, and sol-gel methods usually obtain cuprous oxide solids through reduction and separation. Electrochemical deposition methods, chemical vapor deposition methods, and sputtering methods can realize the deposition of cuprous oxide on conductive substrates. Cuprous oxide has the advantages of strong adhesion, not easy to fall off, uniform distribution, and controllable thickness, but these methods are complicated to operate, requiring a large amount of electrical energy or heat energy and special equipment

Method used

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  • A kind of petal-shaped cuprous oxide and its preparation method and application
  • A kind of petal-shaped cuprous oxide and its preparation method and application
  • A kind of petal-shaped cuprous oxide and its preparation method and application

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Embodiment 1

[0026] The construction of embodiment 1 photocatalytic fuel cell

[0027] TiO in this example 2 / ITO electrode, prepared by the following method:

[0028] (1) Weigh 30mg of P25 titanium dioxide and ultrasonically disperse in 2mL of ethanol for one hour, take 1mL of the dispersion and use the pulling method to obtain TiO 2 / ITO electrode;

[0029] (3) TiO 2 / ITO electrodes are placed in an oven and dried at a constant temperature of 35-45°C to obtain TiO 2 / ITO electrode.

[0030] The construction of the photoelectrochemical fuel cell of the present embodiment, the specific operation steps are as follows:

[0031] TiO prepared as above 2 The / ITO electrode is used as the anode, and the ITO electrode is used as the cathode, which are respectively connected to the working electrode terminal and the reference electrode terminal of the workstation; add 0.1mol / L sodium sulfite solution (the pH value of the electrolyte solution is 11-14) in the anode pool, and add Glucose (fue...

Embodiment 2

[0032] Example 2 Photocatalytic fuel cell driven reduction deposition of cuprous oxide

[0033] Elucidate the TiO in the photocatalytic fuel cell that embodiment 1 builds 2 The current process of depositing cuprous oxide on / ITO electrode and ITO electrode, the specific operation steps are as follows:

[0034] (1) TiO prepared in Example 1 2 The / ITO electrode is used as the anode, and the ITO electrode is used as the cathode, which are respectively connected to the working electrode terminal and the reference electrode terminal of the workstation; add 1.5mL of sodium sulfite solution with a concentration of 0.1mol and a pH value of 12 into the anode pool, and add glucose ( fuel) to make its concentration 1.0mol / L; then add 5mL, 0.1mol / L copper acetate solution to the cathode pool, keep the solution in the anode pool at 25°C with a constant temperature water bath, and the deposition time is 9000s;

[0035] (2) Utilize the electrochemical workstation to measure the photocurre...

Embodiment 3

[0037] Effect of UV radiation and fuel on cuprous oxide deposition in embodiment 3 photocatalytic fuel cell

[0038] To the test of the photocatalytic fuel cell performance that embodiment 1 builds, concrete operation steps are as follows:

[0039] Measure the current and power diagrams under dark and light conditions respectively, adjust the resistance value of the resistance box connected between the anode and cathode of the photocatalytic fuel cell, measure and calculate the change curve of the current density and power density of the photocatalytic fuel cell with voltage, and the result Such as image 3 with 4 shown. Under dark conditions, the short-circuit photocurrent density of the fuel cell in the photocatalytic fuel cell constructed in Example 1 is 250.6 μA cm -2 , with a maximum power density of 26.2 μW cm at 0.3 V -2 , under ultraviolet light irradiation, the short-circuit photocurrent density of the photocatalytic fuel cell constructed in Example 1 is 327μA·cm ...

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Abstract

The invention belongs to the technical field of semiconducting material synthesis and discloses petal-shaped cuprous oxide and a preparation method and application thereof. According to the method, the cuprous oxide is driven by a photocatalysis fuel cell to be reduced and deposited. Nano TiO2 serves as a phstocatalyzer, amylaceum serves as fuel, cupric acetate serves as a copper source, TiO2-decorated conductive glass serves as the anode, conductive glass serves as the cathode, and thus the ultraviolet excitation photocatalysis fuel cell is formed; and meanwhile, deposition of the petal-shaped cuprous oxide on the conductive glass and dual conversion from light and chemical energy to electric energy are achieved. According to the deposition method, operation is easy, the cost is low, the energy utilization rate is large, and non-toxicity and environmental-friendliness are achieved.

Description

technical field [0001] The invention belongs to semiconductor material deposition technology, in particular to a petal-shaped cuprous oxide and its preparation method and application. Background technique [0002] Energy shortage and environmental pollution are two major problems facing human development in the future. Solar energy is favored by people because of its rich resources, high energy, clean and pollution-free, etc. Therefore, solar semiconductor materials have become a research hotspot in recent years. Cuprous oxide is a p-type semiconductor with a band gap of 2.1eV. Its biggest advantage is that it can absorb visible light in sunlight to excite photogenerated electron-hole pairs. It has been used in solar cell materials, photocatalytic degradation of organic Pollutants and antifouling coatings and other fields. [0003] At present, the methods for depositing cuprous oxide mainly include electrochemical deposition, chemical vapor deposition, sputtering, wet chem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D7/12C25D9/08H01L21/208H01L31/18B05D1/18
CPCB05D1/18C25D7/12C25D9/08H01L21/208H01L31/18Y02P70/50
Inventor 黄明高梁兴煇赵倩雯李红
Owner SOUTH CHINA NORMAL UNIVERSITY
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