Synthesis of mono-dispersed m-BiVO4 octahedral nano-crystals with enhanced visible light photocatalytic properties

被引：53

作者：

Han, Mandi ^{[1
]}

Chen, Xiaofeng ^{[1
]}

Sun, Ting ^{[2
]}

Tan, Ooi Kiang ^{[1
]}

Tse, Man Siu ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore

[2] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore

来源：

CRYSTENGCOMM | 2011年 / 13卷 / 22期

关键词：

BISMUTH VANADATE; NANOCRYSTALS; MECHANISM;

D O I：

10.1039/c1ce05539a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Mono-dispersed monoclinic bismuth vanadate (m-BiVO4) octahedral single crystals were synthesized by a simple hydrothermal route in the presence of sodium dodecyl benzene sulfonate (SDBS). Electron microscope observation revealed that the synthesized m-BiVO4 octahedral single crystals were grown with preferentially facets {120} and {021}. The size of these single crystalline octahedra could be facially adjusted in a broad range from 5 mm to less than 200 nm. The influences of additive SDBS, reaction time and acid concentration were studied to understand the formation process, and hence a typical super-saturation process combined Oswald ripening process was proposed. Furthermore, these octahedral single crystals exhibited excellent photocatalytic performance determined by the degradation of rhodamine B (RhB) under visible light irradiation.

引用

页码：6674 / 6679

页数：6

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