The charge transfer mechanism of Bi modified TiO₂ nanotube arrays: TiO₂ serving as a “charge-transfer-bridge”

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• 作者：Zhengbo Jiao^a ; ^b ; ^{jiaozhb@licp.cas.cn}Author Vitae ; Mingdong Shang^aAuthor Vitae ; Jiamei Liu^aAuthor Vitae ; Gongxuan Lu^aAuthor Vitae ; Xuesen Wang^bAuthor Vitae ; Yingpu Bi^a ; ^{yingpubi@licp.cas.cn}Author Vitae
• 关键词：Bismuth ; Titanium Dioxide ; Heterostructure ; Charge transfer ; Photoelectrochemical ; In situ XPS
• 刊名：Nano Energy
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：31
• 期：Complete
• 页码：96-104
• 全文大小：1435 K
• 卷排序：31

文摘

The different roles of Bi and Bi2O3 in photocatalytic process are firstly investigated. The charge transfer pathway of Bi loaded TiO2 is clearly studied by in situ XPS method. It is proved that the improvement of TiO2 PEC performances originate from the SPR of Bi. It is proposed that the energy of immigrant electrons and self-excited ones are different.