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ZnO/g-C3N4 nanocomposite and preparation method thereof

A nanocomposite material and composite material technology are applied in the field of ZnO/g-C3N4 nanocomposite materials and their preparation, and achieve the effects of simple conditions, wide band gap, and improvement of light-responsive current density

Active Publication Date: 2015-02-18
GUANGZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Prepare g-C in order to overcome prior art 3 N 4 Composite materials are only limited to the problem of preparing powder samples, providing a simple and direct way to coat g-C on electrodes loaded with one-dimensional semiconductor materials. 3 N 4 Methods

Method used

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  • ZnO/g-C3N4 nanocomposite and preparation method thereof
  • ZnO/g-C3N4 nanocomposite and preparation method thereof
  • ZnO/g-C3N4 nanocomposite and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0032] The synthesis of ZnO nanorods on FTO conductive glass is achieved by electrochemical deposition. Before the electrochemical deposition reaction, FTO conductive glass (2.5cm x 1.5cm) was ultrasonically cleaned in absolute ethanol and acetone, deionized water, absolute ethanol and acetone for 10 minutes, and then soaked in absolute ethanol and acetone. spare. The FTO conductive glass obtained above is placed in a standard three-port electrolytic cell containing a ZnO nanorod growth solution (the reaction solution is generally 20 mL), and the electrochemical deposition reaction is maintained at 90° C. for 50 min. The composition of the electrochemical deposition reaction solution of ZnO nanorods is 0.02mol / L Zn(NO 3 ) 2 ·6H 2 O solution, 0.01mol / L CH 3 COONH 4 Solution, 0.01mol / L HMT solution. After the reaction, the carrier on which the ZnO nanorods were grown was taken out and washed three times with deionized water, and dried at room temperature.

[0033] Place the FTO c...

Embodiment 2

[0036] The invention is based on the scheme of Example 1, which influences ZnO / g-C by adjusting different reaction conditions 3 N 4 The relationship is shown in Table 1.

[0037] Table 1.g-C 3 N 4 Growth regulation

[0038]

[0039]

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PUM

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Abstract

The invention discloses a ZnO / g-C3N4 nanocomposite and its preparation method, and belongs to the field of solar energy utilization technology. The ZnO / g-C3N4 nanocomposite is a composite material of zinc oxide nanorod and g-C3N4, namely ZnO / g-C3N4. The nanocomposite is obtained by a two-step method, which specifically includes: Step One, an electrochemical deposition method is implemented to grow the zinc oxide nanorod; and Step Two, a direct heat treatment method is implemented to coat the zinc oxide nanorod with a layer of g-C3N4. According to the prepared ZnO / g-C3N4 nanocomposite, separation efficiency of photogenerated electron-holes is raised and photoresponse current density is enhanced by means of high specific surface area, large energy gap and good photoconduction performance of the zinc oxide one-dimensional nanorod as well as visible-light response characteristics and high chemical stability of g-C3N4. Thus, solar energy utilization rate is raised effectively, and a good method is provided for the current problem of solar energy utilization. The preparation method of the ZnO / g-C3N4 nanocomposite has advantages of low energy consumption, simple condition, easy operation and the like.

Description

Technical field [0001] The invention relates to the technical field of solar energy utilization, in particular to a ZnO / g-C 3 N 4 Nano composite material and its preparation method. Background technique [0002] Environmental degradation and energy shortages are the biggest challenges facing mankind in the 21st century. The search for clean energy and sustainable and renewable energy has become a common concern of all countries in the world. Therefore, the development and utilization of green renewable energy (such as solar energy, wind energy, hydropower, hydrogen energy, and geothermal energy, etc.) has become a hot topic of research. As a renewable secondary energy carrier, hydrogen energy has many advantages such as cleanness, high efficiency, storage and transportation, etc. It has been generally regarded as one of the most ideal pollution-free green energy sources in the new century, and is known as the “oil of the future”. It has received great attention from countries al...

Claims

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Application Information

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IPC IPC(8): H01M14/00H01G9/20B82Y30/00
CPCB82Y30/00H01G9/042
Inventor 刘兆清陈高锋邝攀勇李楠苏育志
Owner GUANGZHOU UNIVERSITY
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