Experimental evidence for electron localization on Au upon photo-activation of Au/anatase catalysts

Joana T. Carneiro; Tom J. Savenije; Guido Mul

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Experimental evidence for electron localization on Au upon photo-activation of Au/anatase catalysts

机译：Au /锐钛矿催化剂光活化后电子在Au上定位的实验证据

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Time resolved microwave conductivity (TRMC) measurements show that the presence of Au on anatase Hombikat UV100 significantly reduces the lifetime of mobile electrons formed by photo-excitation of this photocatalyst at 300 nm, providing evidence for the widely acclaimed electron localization effect of Au in promoting TiO2 photocatalysts. Electron localization efficiency of Au was even higher for Au-promoted Hombikat calcined at 400 °C, explained by enlargement of the anatase particle size and the associated, relatively larger fraction of anatase particles in direct contact with Au.

机译：时间分辨的微波电导率（TRMC）测量表明，锐钛矿Hombikat UV100上存在Au会显着降低这种光催化剂在300 nm处的光激发形成的移动电子的寿命，这为Au在促进电子定位方面广受赞誉提供了证据TiO2光催化剂。对于在400°C下煅烧的Au促进的Hombikat，Au的电子定位效率更高，这可以通过锐钛矿粒径的增大以及与Au直接接触的相对较大比例的锐钛矿颗粒来解释。

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《Physical chemistry chemical physics: PCCP》 |2009年第15期|共7页
作者
Joana T. Carneiro; Tom J. Savenije; Guido Mul;
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1. Experimental evidence for electron localization on Au upon photo-activation of Au/anatase catalysts [J] . Joana T. Carneiro, Tom J. Savenije, Guido Mul Physical chemistry chemical physics: PCCP . 2009,第15期

机译：Au /锐钛矿催化剂光活化后电子在Au上定位的实验证据
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Experimental evidence for electron localization on Au upon photo-activation of Au/anatase catalysts

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