Photocatalysis with TiO2 Nanotubes: “Colorful” Reactivity and Designing Site-Specific Photocatalytic Centers into TiO2 Nanotubes
Photocatalysis with TiO2 Nanotubes: “Colorful” Reactivity and Designing Site-Specific Photocatalytic Centers into TiO2 Nanotubes
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DOI：
10.1021/acscatal.6b03709
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发表时间：
2017-04
期刊：
影响因子：
12.9
通讯作者：
Xuemei Zhou;Ning Liu;P. Schmuki
中科院分区：
文献类型：
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作者：
Xuemei Zhou;Ning Liu;P. Schmuki
二氧化钛上的光催化反应最近获得了巨大的复苏，因为各种新的策略和发现，承诺大幅提高这种反应的效率和特异性，通过修改二氧化钛支架和化学。鉴于几何形状，特别是，阳极TiO 2纳米管吸引了广泛的兴趣，因为它们允许高度控制光生载流子的分离，不仅在光催化反应，而且在光电化学反应。有序纳米管阵列的一个关键优点是纳米管修饰可以嵌入管壁中的特定位置;也就是说，助催化剂，掺杂物质或结可以沿着管壁放置在高度限定的所需位置（或具有所需的规则几何形状或图案）。这使得催化和光催化反应的反应位点的能量学工程达到了前所未有的水平，其目标不仅是更高的效率，而且是反应的选择性。
Photocatalytic reactions on TiO2 have recently gained an enormous resurgence because of various new strategies and findings that promise to drastically increase efficiency and specificity of such reactions by modifications of the titania scaffold and chemistry. In view of geometry, in particular, anodic TiO2 nanotubes have attracted wide interest, as they allow a high degree of control over the separation of photogenerated charge carriers not only in photocatalytic reactions but also in photoelectrochemical reactions. A key advantage of ordered nanotube arrays is that nanotube modifications can be embedded site specifically into the tube wall; that is, cocatalysts, doping species, or junctions can be placed at highly defined desired locations (or with a desired regular geometry or pattern) along the tube wall. This allows an unprecedented level of engineering of energetics of reaction sites for catalytic and photocatalytic reactions, which target not only higher efficiencies but also the selectivity of re...