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

Mandi Han; Xiaofeng Chen; Ting Sun; Ooi Kiang Tan; Man Siu Tse

doi:10.1039/c1ce05539a

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

Mandi Han, Xiaofeng Chen, Ting Sun, Ooi Kiang Tan^*, Man Siu Tse

^*Corresponding author for this work

Nanyang Technological University

Research output: Contribution to journal › Article › peer-review

60 Citations (Scopus)

Abstract

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 μm 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.

Original language	English
Pages (from-to)	6674-6679
Number of pages	6
Journal	CrystEngComm
Volume	13
Issue number	22
DOIs	https://doi.org/10.1039/c1ce05539a
Publication status	Published - Nov 21 2011
Externally published	Yes

ASJC Scopus Subject Areas

General Chemistry
General Materials Science
Condensed Matter Physics

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abstract = "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 μm 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.",

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T1 - Synthesis of mono-dispersed m-BiVO4 octahedral nano-crystals with enhanced visible light photocatalytic properties

AU - Han, Mandi

AU - Chen, Xiaofeng

AU - Sun, Ting

AU - Tan, Ooi Kiang

AU - Tse, Man Siu

PY - 2011/11/21

Y1 - 2011/11/21

N2 - 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 μm 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.

AB - 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 μm 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.

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

Abstract

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