TiO2 films with oriented anatase {001} facets and their photoelectrochemical behavior as CdS nanoparticle sensitized photoanodes
TiO2 films with oriented anatase {001} facets and their photoelectrochemical behavior as CdS nanoparticle sensitized photoanodes
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DOI：
10.1039/c0jm02694h
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发表时间：
2011-01-01
影响因子：
--
通讯作者：
Cheng, Hui-Ming
中科院分区：
文献类型：
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作者：
Wang, Xuewen;Liu, Gang;Cheng, Hui-Ming
采用水热法在钛箔衬底上直接生长了具有取向的{001}晶面的TiO 2薄膜。{001}晶面的平均尺寸约为100 μ m。130 nm，其厚度约为600 nm。所获得的TiO 2薄膜作为光阳极显示出高效的光电化学性能。此外，在涂覆CdS纳米颗粒（NPs）后，具有取向{001}面的TiO 2膜表现出更大的光电化学水分解能力（光电流）。提出了一种独特的Z-计划电子/空穴传输机制发生在高活性TiO 2 {001}面和CdS纳米颗粒的界面上。
TiO2 films with oriented anatase {001} facets directly grown on titanium foil substrate were prepared via a facile hydrothermal route. The average size of {001} facets is as small as ca. 130 nm, and its thickness is around 600 nm. The obtained TiO2 film as a photoanode shows efficient photoelectrochemical capability. Furthermore, after coating with CdS nanoparticles (NPs), the TiO2 film with oriented {001} facets exhibited much improved photoelectrochemical water splitting ability (photocurrent). A unique Z-scheme electron/hole transport mechanism is proposed to occur on the interface of highly active TiO2 {001} facets and CdS NPs.