Integration of novel environmental-friendly and energy creation functions to oxide nanotubes through low-dimensional nanoarchitecture control

为了促进二氧化钛纳米管作为新型多功能环境和能源材料，人们进行了各种工艺优化、结构修饰和功能分析。通过工艺优化，成功地合成了尺寸可控的TNTs，明确并增强了分子吸附和光化学性能的协同作用。当将尺寸可控的TNTs用于染料敏化太阳能电池时，可以增强染料的吸附，提高追随者的效率。还研制了金属掺杂和金属纳米颗粒负载的TNTs。结果表明，这些改性的TNT具有更好的物理光化学功能，同时还发现其在能量传递过程中的独特多功能性以及作为光催化剂的可见光响应性。这些结果合理地证明了目前对低维纳米氧化物的结构控制是一种很有前途的新材料和新体系的方法。

To facilitate titania nanotubes (TNTs) as for the novel multifunctional environmental and energy materials, various process optimization, structure modification and function analyses were carried out. Size-controlled TNTs were successfully synthesized by process optimization, and synergy of molecular adsorption and photochemical properties were clarified and enhanced. When the size-controlled TNTs were used for dye-sensitized solar cells, enhanced dye adsorption and follower efficiency increase was achieved. Metal-doped and metal nanoparticles loaded TNTs were also developed. It was found that these modified TNT exhibited better physico-photochemical functions, and also found that unique multifunctionalities in energy transfer processes as well as visible light responsibility as the photocatalyst were clarified. These results rationalize that the present architecture control of low-dimensional nanostructured oxides is promising method for novel materials and systems.