The effects of bifunctional linker and reflux time on the surface properties and photocatalytic activity of CdTe quantum dots decorated KTaO₃ composite photocatalysts

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• 作者：Beata Bajorowicz^a ; ^{beatabajorowicz@gmail.com} ; Joanna Nadolna^a ; Wojciech Lisowski^b ; Tomasz Klimczuk^c ; Adriana Zaleska-Medynska^a
• 关键词：CdTe quantum dots ; Photocatalysis ; Perovskite-type KTaO3 ; Bifunctional linker
• 刊名：Applied Catalysis B: Environmental
• 出版年：2017
• 出版时间：April 2017
• 年：2017
• 卷：203
• 期：Complete
• 页码：452-464
• 全文大小：4621 K
• 卷排序：203

文摘

CdTe quantum dots were loaded onto KTaO3 cubes using MPA or TGA as linker molecules. Shorter chain length of TGA as compared with MPA promotes photocatalytic activity. Fluorescence quenching of nanodots indicates electron transfer from CdTe to KTaO3. The size of CdTe quantum dots affects Vis driven photoactivity of CdTe-KTaO3. 2.04 nm CdTe dots are favorable for photoactivity of the TGA-CdTe-KTaO3 composite.