Sonication-assisted synthesis of CdS quantum-dot-sensitized TiO2 nanotube arrays with enhanced photoelectrochemical and photocatalytic activity.
Sonication-assisted synthesis of CdS quantum-dot-sensitized TiO2 nanotube arrays with enhanced photoelectrochemical and photocatalytic activity.
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DOI：
10.1021/am100605a
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发表时间：
2010-09
影响因子：
9.5
通讯作者：
Yinjuan Xie;G. Ali;S. Yoo;S. Cho
中科院分区：
文献类型：
--
作者：
Yinjuan Xie;G. Ali;S. Yoo;S. Cho
提出了一种超声辅助连续化学浴沉积方法在自组织二氧化钛纳米管阵列上均匀修饰硫化镉量子点。这种方法避免了硫化镉量子点在二氧化钛纳米管口的堵塞，并促进了硫化镉量子点在纳米管和管壁上的沉积。详细研究了所制备的硫化镉修饰的TNTAs的光电化学和光催化性能。与经典的S-CBD方法相比，超声辅助技术显著提高了硫化镉量子点敏化TNTA的光电化学和光催化活性。
A sonication-assisted sequential chemical bath deposition (S-CBD) approach is presented to uniformly decorate CdS quantum dots (QDs) on self-organized TiO2 nanotube arrays (TNTAs). This approach avoids the clogging of CdS QDs at the TiO2 nanotube mouth and promotes the deposition of CdS QDs into the nanotubes as well as on the tube walls. The photoelectrochemical and photocatalytic properties of the resulting CdS-decorated TNTAs were explored in detail. In comparison with a classical S-CBD approach, the sonication-assisted technique showed much enhancement in the photoelectrochemical and photocatalytic activities of the CdS QDs-sensitized TNTAs.