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Nano-particle system and preparation system and application of nano-particle system

A technology of nanoparticles and butterfly wings, which is applied in the field of preparation of light energy absorbers, to achieve remarkable photoelectric conversion performance, excellent photothermal conversion performance, and excellent broadband light absorption effect

Active Publication Date: 2015-07-08
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the method of preparing functional materials using organisms as templates has been widely used, but the large-scale preparation of noble metal-chalcogenide semiconductor coupled nanoparticle films combined with butterfly wing anti-reflection microstructures has not been reported.

Method used

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  • Nano-particle system and preparation system and application of nano-particle system
  • Nano-particle system and preparation system and application of nano-particle system
  • Nano-particle system and preparation system and application of nano-particle system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] The preparation method of the Au-CuS nanoparticle system of this embodiment comprises the following steps:

[0052] (1) Select the forewing of Papilion butterfly as the butterfly wing with anti-reflection microstructure;

[0053] (2) Perform the following pre-treatment and activation treatment on the forewings of the selected Papilionidae: first, soak the wings in absolute ethanol for 30 minutes, and then wash them with deionized water; then soak the wings in 15vol% HNO 3 Put it in the solution for 2 hours, take it out and wash it; then soak the butterfly wings in 40% ethylenediamine absolute ethanol solution for 6 hours, then take it out, and wash it several times with deionized water; the above steps are used to remove pigments and impurities , and improve its surface adsorption properties;

[0054] (3) Deposition of Au nanoparticles: The activated butterfly wings were immersed in the chloroauric acid precursor solution at a constant temperature of 30°C for 4 hours,...

Embodiment 2

[0069] The preparation method of the Au-CdS nanoparticle system of the present embodiment comprises the following steps:

[0070] (1) Select the forewing of Papilion butterfly as the butterfly wing with anti-reflection microstructure;

[0071] (2) Perform the following pretreatment and activation treatment on the selected forewings of Papilionidae: first, soak the wings in absolute ethanol for 15 minutes, and then wash them with deionized water; then soak the wings in 5vol% HNO 3 Put it in the solution for 2 hours, take it out and wash it; then soak the butterfly wings in 10% ethylenediamine absolute ethanol solution for 6 hours, then take it out, and wash it several times with deionized water; the above steps are used to remove pigments and impurities , and improve its surface adsorption properties;

[0072] (3) Deposition of Au nanoparticles: The butterfly wings after activation treatment were immersed in the chloroauric acid precursor solution at a constant temperature of...

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Abstract

The invention discloses a nanoparticle system with an anti-reflection microstructure and a preparation method thereof, as well as a method for preparing a light energy absorber of a solar thermal collector and a solar thermal collector using the nanoparticle system, wherein the nanoparticle system The preparation includes steps such as selection and pretreatment of butterfly wings, deposition of noble metal nanoparticles, and deposition of chalcogen semiconductor nanoparticles. The nanoparticle system prepared by the invention realizes large scale and has a butterfly-wing anti-reflection microstructure. The nanoparticle system of the present invention has high absorption and anti-reflection performance in almost the entire solar spectrum band, and has excellent photothermal conversion performance, and its photothermal conversion efficiency is 30.56%. The solar collector light energy absorber made by it The solar energy absorption ratio can reach 98%.

Description

technical field [0001] The invention relates to a nanoparticle system with an anti-reflection microstructure prepared by using butterfly wings as a structure-guiding template and a preparation method, as well as a solar heat collector prepared by using the nanoparticle system and a light energy absorber of the solar heat collector method of preparation. Background technique [0002] The relatively mature nanoparticle film system preparation methods include chemical vapor deposition (CVD), ion sputtering, high-energy ball milling, electroplating deposition and plasma arc and other methods. However, there are some defects in the above methods, such as high energy consumption, low output, poor morphology of prepared products, uneven particle size, difficulty in preparing multi-component coupling nanoparticles, and difficulty in coupling submicron structures. The promotion and application of these preparation methods are limited to a certain extent. Therefore, finding a simple...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F9/24B22F1/02B82Y40/00B82Y20/00F24J2/48
CPCY02E10/40
Inventor 张旺田军龙潘峰黄亦樵王宇安张荻
Owner SHANGHAI JIAOTONG UNIV
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