Visible light induced water splitting by the use of layered organophotocatalyst films

在人工光合作用系统之一的人工叶片中，由于其氧化还原反应的二维分离，不发生逆反应。本课题在对聚合物薄膜型挥发性分子氧化有机光催化剂研究的基础上，旨在设计可见光光催化水分解的人工有机叶片系统。我们成功地在精确合成的嵌段共聚物膜上分层了p型和n型有机半导体，并研究了其光电电化学行为如下。1)亲水性通道中物质输运的优化温度相对高于室温。2)计算了p-n结的温度依赖性光氧化速率。此外，我们还提出了有机光催化剂单路流动反应器的新概念，并首次对每层的优化吸光度进行了评估。

In the artificial leaf, one of the artificial photosynthesis systems, reverse reaction does not happen due to its two-dimensional separation of the redox reactions. The research project has a aim to design artificial organic leaves system for photocatalytic water splitting using only visible light based on our previous study of polymer film type organophotocatalyis of volatile molecules oxidation.We have succeeded the layering of p-and n-type organic semiconductors on the precisely synthesized block copolymer membrane and investigated its photoelectrochemical behaviors as follows. 1) The optimized temperature of the substances transport in the hydrophilic channel was found to be relatively higher than the room temperature. 2) The temperature dependent photooxidation rate was evaluated for the p-n junction. Furthermore, we have submitted new concept of the one-path flow reactor of organophotocatalyst where the optimized absorbance of each layer was evaluated for the first time.