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Preparation method of gold-iron oxyhydroxide-cuprous oxide-copper sulfide composite paper

A technology of ferric oxyhydroxide and cuprous oxide, which is applied in liquid chemical plating, metal material coating process, electrodes, etc., can solve the problems of limiting hydrogen production performance, fast carrier recombination rate, poor light stability, etc. Achieve the effect of increasing the photocatalytic hydrogen production efficiency, abundant sources, and simple preparation method

Active Publication Date: 2020-11-06
UNIV OF JINAN
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the poor photostability and fast carrier recombination rate of cuprous oxide greatly limit its hydrogen production performance.

Method used

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  • Preparation method of gold-iron oxyhydroxide-cuprous oxide-copper sulfide composite paper
  • Preparation method of gold-iron oxyhydroxide-cuprous oxide-copper sulfide composite paper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The preparation method of gold-iron oxyhydroxide-cuprous oxide-copper sulfide composite paper, the specific preparation scheme is as follows:

[0018] (1) First use the computer software Adobe illustrator CS4 to design the paper chip batik pattern, and then use the wax printer to print the designed batik pattern on the chromatographic paper. The wax printer model used is Color Qube 8580, and then the printed chromatographic paper is placed Heated in an oven at 120 °C for 50 s to obtain the hydrophilic and hydrophobic regions of the paper chip;

[0019] (2) Preparation of gold paper electrode, the process is divided into 2 steps, the first step is to synthesize gold seed solution, first add 130 μL of 20 mM chloroauric acid solution to 6 mL of 120 mM hexadecyltri methyl ammonium bromide solution, and stirred at room temperature for 20 min, then added 0.3 mL of 10 mM sodium borohydride solution, the sodium borohydride solution used was ice-bathed for 40 min in advance, and...

Embodiment 2

[0022] The preparation steps were the same as in Example 1, except that in the second step of step (2), a layer of gold nanoparticles was grown on the hydrophilic region of the paper chip, and the reaction time used was 40 min.

Embodiment 3

[0024] The preparation steps are the same as in Example 1, except that the deposition time for the first step in step (3) is 20 min.

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Abstract

The invention discloses a preparation method of gold-iron oxyhydroxide-cuprous oxide-copper sulfide composite paper. The preparation method comprises the following steps of: growing a layer of gold nanoparticles on the surface of a paper chip to obtain a gold paper electrode; sequentially depositing iron oxyhydroxide and cuprous oxide on the surface of the gold paper electrode by utilizing an electro-deposition method; and finally, coating the surface of the cuprous oxide with copper sulfide through a continuous ion layer adsorption and reaction method, so as to obtain the gold-iron oxyhydroxide-cuprous oxide-copper sulfide composite paper. The iron oxyhydroxide and copper sulfide are used as cocatalysts, so that separation and transfer of photogenerated charges of the cuprous oxide can beeffectively accelerated, the photostability of the cuprous oxide is enhanced, and the photocatalytic hydrogen production performance of the cuprous oxide is greatly improved. The composite paper is rich in raw material source, simple in preparation method and suitable for mass production, and has high application value in the field of photocatalytic hydrogen production.

Description

technical field [0001] The invention relates to the technical fields of nanocomposite preparation technology and paper chip processing technology, and more specifically relates to a preparation method of gold-iron oxyhydroxide-cuprous oxide-copper sulfide composite paper. Background technique [0002] Photoelectrochemical water splitting for hydrogen production is an efficient method for hydrogen production, which usually only requires semiconductor electrodes, water and sunlight. The hydrogen production performance of semiconductor materials mainly depends on their optical and electrical properties. Cuprous oxide is a narrow bandgap semiconductor that can efficiently capture sunlight. In addition, cuprous oxide has a negative conduction band voltage, which is more conducive to the generation of hydrogen. However, the poor photostability and fast carrier recombination rate of cuprous oxide greatly limit its hydrogen production performance. Cocatalysts are usually introduc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B1/04C25B11/06C23C18/44C25D9/04
CPCC23C18/1605C23C18/44C25B1/04C25D9/04Y02E60/36
Inventor 杨红梅于京华张彦李正林葛慎光
Owner UNIV OF JINAN
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