A Large Manganese-doped Polyoxotitanate Nanocluster: Ti14MnO14(OH)2(OEt)28

被引：22

作者：

Chen, Yang ^{[1
]}

Sokolow, Jesse ^{[1
]}

Trzop, Elzbieta ^{[1
]}

Chen, Yu-Sheng ^{[2
]}

Coppens, Philip ^{[1
]}

机构：

[1] SUNY Buffalo, Dept Chem, Buffalo, NY 14260 USA

[2] Univ Chicago, ChemMat CARS, Chicago, IL 60637 USA

来源：

JOURNAL OF THE CHINESE CHEMICAL SOCIETY | 2013年 / 60卷 / 07期

基金：

美国国家科学基金会;

关键词：

Transition metal doping; Polyoxotitanate; Nanocluster; Crystal structure; Band gap; STRUCTURE VALIDATION; TIO2; PHASE;

D O I：

10.1002/jccs.201300163

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A large manganese-doped polyoxotitanate nanocluster, Ti14MnO14(OH)(2)(OEt)(28), has been synthesized under solvothermal conditions. Its structure is similar to previously reported Ti17O24((OPr)-Pr-i)(20), but lacks 5-fold coordinated Ti atoms which are potential binding sites for photosensitizer molecules. The Mn atom is located at the center of the Keggin structure with Ti-O bond length indicative of Mn2+, a conclusion confirmed by NEXAFS measurements. Solid-state band gap measurements of the complex show a significant decrease compared with undoped polyoxotitanate nanoclusters and anatase, indicating the potential of Mn-doping for visible light photocatalysis.

引用

页码：887 / 890

页数：4

共 21 条

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