Organophotocatalysis system of p/n bilayers for wide visible-light-induced molecular hydrogen evolution
Organophotocatalysis system of p/n bilayers for wide visible-light-induced molecular hydrogen evolution
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DOI：
10.1039/c2ra21281a
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发表时间：
2012-08
期刊：
影响因子：
3.9
通讯作者：
Toshiyuki Abe;J. Chiba;M. Ishidoya;K. Nagai
中科院分区：
文献类型：
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作者：
Toshiyuki Abe;J. Chiba;M. Ishidoya;K. Nagai
我们开发了一种由两种类型的有机 p/n 双层组成的光催化系统，用于析出 H2。当通过在 C60 表面负载 Pt 助催化剂，将 29H,31H-酞菁（H2Pc，p 型半导体）/富勒烯（C60，n 型半导体）双层应用于光催化剂时，涂覆 Pt 的 C60 表面诱导 H2 析出，同时涉及另一个双层中的 H2Pc 的光催化氧化。光催化反应可以与 p/n 内部的光物理事件一起发生。为了获得有效的光催化作用，从光照射强度、双层厚度和 Pt 助催化剂沉积量等方面研究了影响 H2 析出的因素。该有机光催化系统展示了一种利用整个可见光范围内的能量进行光催化析氢的新颖而先进的方法。
We developed a photocatalysis system composed of two types of organic p/n bilayers for the evolution of H2. When a bilayer of 29H,31H-phthalocyanine (H2Pc, a p-type semiconductor)/fullerene (C60, an n-type semiconductor) was applied to a photocatalyst by loading a Pt co-catalyst onto the C60 surface, the Pt-coated C60 surface induced H2 evolution, concurrently involving photocatalytic oxidation at H2Pc in the other bilayer. The photocatalytic reaction can occur along with photophysical events in the p/n interior. In order to draw out an efficient photocatalysis, the factors affecting H2 evolution were investigated in terms of the intensity of light irradiated, thickness of the bilayers, and the amount of Pt co-catalyst deposited. The organophotocatalysis system demonstrates a novel and advanced method of photocatalytic H2 evolution utilizing energy over the entire range of visible light.