Synthesis of photoceramics based on aqueous solution and complex chemistry: Improvement of thier properties and exploration of new photoceramics

本计画以水溶液法为基础，尝试改善光陶瓷之特性，并开发可借光照射而发挥功能之新型光陶瓷。关于光陶瓷的性能的改进，例如，我们已经成功地通过使用水分散性硅化合物的基于水溶液的方法合成了具有高效率和亮度的磷光体，并且成功地使水分解光催化剂和超亲水材料高度官能化。在新的感光陶瓷的探索方面，已经发现了包括硅酸盐、氮氧化硅和硫代硅酸盐在内的各种感光陶瓷。此外，我们已经对它们进行了高度功能化，一些公司正在努力将其实用化。

In the project, we have attempted improvement of photoceramics' properties as well as exploration of new photoceramics, which exhibit functions by photo-irradiation, based on aqueous solution process. As for the improvement of photoceramicss' properties, for example, wer have succeeded in synthesis of phosphors with high efficiency and brightness by aqueous solution based methods employing a water-dispersible silicon compound, and in high-functionalization of water splitting photocatalyts and superhydrophilic materials. As for the exploration of new photoceramics, various photoceramics including silicates, silicon oxynitrides and thioshilicates have been discovered. Moreover, we have performed high functionalization of them, and some companies are working toward their practical use.