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

A technology of iron oxyhydroxide and cuprous oxide, applied in liquid chemical plating, metal material coating process, coating, etc., can solve problems such as limiting hydrogen production performance, poor light stability, and fast carrier recombination rate , to achieve the effect of improving photocatalytic hydrogen production performance, simple preparation method, and enhancing photostability

Active Publication Date: 2021-10-26
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 electrodes, 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 hexadecyl Trimethylammonium 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. First, a layer of gold nanoparticles is grown on the surface of a paper chip to obtain a gold paper electrode; Iron oxyhydroxide and cuprous oxide were deposited on the surface in sequence; finally, copper sulfide was coated on the surface of cuprous oxide by continuous ion layer adsorption and reaction method to obtain gold-iron oxyhydroxide-cuprous oxide-copper sulfide composite paper. Iron oxyhydroxide and copper sulfide as cocatalysts can effectively accelerate the separation and transfer of photogenerated charges of cuprous oxide, thereby enhancing the photostability of cuprous oxide and greatly improving its photocatalytic hydrogen production performance. The composite paper has rich sources of raw materials, simple preparation method, is 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 Patents(China)
IPC IPC(8): C25B1/04C25B1/55C25B11/053C25B11/093C23C18/44C25D9/04
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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