The Design and Development of Novel Titanium Oxide Photocatalysts Prepared on the Various Plate Materials by an Advanced Ion Engineering Techniques

The photocatalytic degradation of various toxic compounds in aqueous solution using fine TiO D22 y D2 particles has been investigated by many researchers， however， to avoid the filtration and suspension of the small particle photocatalysts， the design of an effective transparent TiO D22 y D2 thin film photocatalyst is stronglydesired。在此研究项目中， transparent TiO D22-D2 thin film photocatManagement sts were prepared on transparent porous Vycor glass （PVG） by the ionized cluster beam （ICB） method。UV-Vis和XAFS的调查揭示了统一薄无油酶TiO-D22-D2薄膜具有良好的晶体密度，即使在低于300纳米的电影厚度的情况下。These thin TiO D22 films were found to efficiently decompose NO into NイD22イD2 and OイD22イD2 photocat·tically under UV light irradiation。对这些TiO-D22-D2薄膜薄膜的修改成功地通过应用先进的金属离子植入技术与各种转换元 ... More 这就是V和Cr。这些金属离子植入TiO-D22-D2薄膜的紫外-可见吸收特性被发现以平滑地转移到可见光区域，并显示出在可见光照射下去除氮氧化物的能力大于450纳米，同时在相同的时间，保持紫外光照射下的高光催化活性。更进一步，它被发现是通过使用磁铁散射方法来准备独特的Tio-D22-D2薄膜，在可见光辐射下没有有效的衰减，而没有应用过渡金属的离子植入物是可能的。原位XPS测量揭示了TiO-D22-D2薄膜的Ti/O比率从表面到催化剂的块状相位的原位XPS测量，并在薄膜吸收带向可见光区域的显著转变中发挥了一个重要作用。因此，它展示了这些独特的Tio-D22-D2电影最近准备了这样的先进离子工程技术使其能够使用的太多的太阳光束达到地球的35%，显示出一个惊人的对比度到通常使用的Tio-D22-D2薄电影，其中只有大约4%的可用性。Less（低）

The photocatalytic degradation of various toxic compounds in aqueous solution using fine TiOィイD22ィエD2 particles has been investigated by many researchers, however, to avoid the filtration and suspension of the small particle photocatalysts, the design of an effective transparent TiOィイD22ィエD2 thin film photocatalyst is strongly desired. In this research project, transparent TiOィイD22ィエD2 thin film photocatalysts were prepared on transparent porous Vycor glass (PVG) by the ionized cluster beam (ICB) method. UV-Vis and XAFS investigations revealed the formation of uniform thin anatase TiOィイD22ィエD2 films with good crystallinity, even in the case of a film thickness of less than 300 nm. These thin TiOィイD22ィエD2 films were found to efficiently decompose NO into NィイD22ィエD2 and OィイD22ィエD2 photocatalytically under UV light irradiation. A modification of these TiOィイD22ィエD2 thin films were successfully carried out by applying an advanced metal ion-implantation technique with various transition meta … More l ions such as V and Cr. The UV-Vis absorption spectra of these metal ion-implanted TiOィイD22ィエD2 thin films were found to shift smoothly toward visible light regions and exhibited the ability to decompose NOx under irradiation with visible light longer than 450nm, while at the same time, maintaining a high photocatalytic activity under UV light irradiation. Furthermore, it was found that by using a magnetron sputtering method, the preparation of unique TiOィイD22ィエD2 thin films which decompose NO efficiently under visible light irradiation, without applying the ion-implantation of transition metal ions was possible. In-situ XPS measurements revealed that the Ti/O ratio of the TiOィイD22ィエD2 thin films gradually decrease from the surface to bulk phase of the catalyst, which plays an important role in the remarkable shift of the absorption band of the films toward visible light regions. Thus, it was shown that these unique TiOィイD22ィエD2 films newly prepared by such advanced ion-engineering techniques enable the utilization of as much as 35% of the solar beams that reach the earth, showing a remarkable contrast to the activity of commonly used TiOィイD22ィエD2 thin films which can utilize only about 4%. Less