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首页> 美国卫生研究院文献>Scientific Reports >An artificial photosynthesis anode electrode composed of a nanoparticulate photocatalyst film in a visible light responsive GaN-ZnO solid solution system
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An artificial photosynthesis anode electrode composed of a nanoparticulate photocatalyst film in a visible light responsive GaN-ZnO solid solution system

机译：在可见光响应型GaN-ZnO固溶体系中由纳米颗粒光催化剂膜组成的人工光合作用阳极

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摘要

The artificial photosynthesis technology known as the Honda-Fujishima effect, which produces oxygen and hydrogen or organic energy from sunlight, water, and carbon dioxide, is an effective energy and environmental technology. The key component for the higher efficiency of this reaction system is the anode electrode, generally composed of a photocatalyst formed on a glass substrate from electrically conductive fluorine-doped tin oxide (FTO). To obtain a highly efficient electrode, a dense film composed of a nanoparticulate visible light responsive photocatalyst that usually has a complicated multi-element composition needs to be deposited and adhered onto the FTO. In this study, we discovered a method for controlling the electronic structure of a film by controlling the aerosol-type nanoparticle deposition (NPD) condition and thereby forming films of materials with a band gap smaller than that of the prepared raw material powder, and we succeeded in extracting a higher current from the anode electrode. As a result, we confirmed that a current approximately 100 times larger than those produced by conventional processes could be obtained using the same material. This effect can be expected not only from the materials discussed (GaN-ZnO) in this paper but also from any photocatalyst, particularly materials of solid solution compositions.
机译：人工光合作用技术称为本田-藤岛效应，它可以通过日光，水和二氧化碳产生氧气，氢气或有机能，是一种有效的能源和环境技术。该反应系统更高效率的关键组件是阳极电极，通常由光导电催化剂组成，该光催化剂由导电的掺氟氧化锡（FTO）形成在玻璃基板上。为了获得高效的电极，需要沉积通常由复杂的多元素组成的纳米颗粒可见光响应型光催化剂组成的致密膜，并将其粘附到FTO上。在这项研究中，我们发现了一种通过控制气溶胶型纳米颗粒沉积（NPD）条件来控制薄膜电子结构的方法，从而形成带隙小于制备的原料粉末的带隙的材料薄膜，成功地从阳极电极中提取了更高的电流。结果，我们确认，使用相同的材​​料可以获得比传统方法生产的电流大100倍的电流。这种效果不仅可以从本文讨论的材料（GaN-ZnO）中获得，而且可以从任何光催化剂，特别是固溶体组合物的材料中获得。

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