Photo-induced direct interfacial charge transfer at TiO2 modified with hexacyanoferrate(iii)†,Photochemical & Photobiological Sciences

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Photo-induced direct interfacial charge transfer at TiO2 modified with hexacyanoferrate(iii)†
Photochemical & Photobiological Sciences ( IF 2.7 ) Pub Date : 2018-08-08 00:00:00 , DOI: 10.1039/c8pp00237a
Tomomi Tatebe _{1,

2,

3,

4} , Takashi Harada _{2,

3,

4,

5} , Kazuhide Kamiya _{1,

2,

3,

4,

5} , Shuji Nakanishi _{1,

2,

3,

4,

5}

Affiliation

Photo-induced electron-transfer reactions occurring at the interface between titanium dioxide modified with hexacyanoferrate(III) (Fe(III)-CN-TiO₂) were characterized. After the modification of TiO₂ with [Fe(CN)₆]³⁻ ions, a new absorption appeared in the visible light region (410 to 700 nm). Absorption spectroscopy measurements showed that Fe(III)-CN-TiO₂ was converted to Fe(II)-CN-TiO₂ under visible light irradiation (>520 nm), which indicates that the new absorption was assignable to direct charge transfer from the valence band to the modified Fe(III) ions.

中文翻译：

高铁酸氰化（iii）改性的TiO _2上的光诱导直接界面电荷转移†

表征了在六氰合铁酸酯（III）（Fe（III）-CN-TiO ₂）改性的二氧化钛之间的界面上发生的光诱导电子转移反应。在用[Fe（CN）₆ ] ^3-离子改性TiO ₂之后，在可见光区域（410至700 nm）出现了新的吸收。吸收光谱法测量表明，Fe（III）-CN-TiO ₂在可见光照射（> 520 nm）下转化为Fe（II）-CN-TiO ₂，这表明新的吸收可归因于从表面的直接电荷转移。价带的改性的Fe（III）离子。

更新日期：2018-08-08

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