Flower-shaped CuO nanostructures: Structural, photocatalytic and XANES studies

M. Vaseem; A. Umar; Y. B. Hahn; D. H. Kim; K. S. Lee; J. S. Jang; J. S. Lee

doi:10.1016/j.catcom.2008.07.022

Flower-shaped CuO nanostructures: Structural, photocatalytic and XANES studies

M. Vaseem, A. Umar, Y. B. Hahn, D. H. Kim, K. S. Lee, J. S. Jang, J. S. Lee

Department of Chemistry

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

153 Citations (Scopus)

Abstract

Flower-shaped CuO nanostructures consist of triangular-shaped leaves, having sharpened tips with the wider bases, have been grown by simple aqueous solution process. Detailed structural observations exhibited the nanocrystalline nature with monoclinic structure for the as-synthesized nanostructures. The photocatalytic activity of the nanostructures was evaluated by examine the degradation of methylene blue. The photocatalytic property of the as-grown structures was probably due to the recycling of Cu¹⁺ ion under light on the CuO interface and large surface area of the flower-like moieties. The XANES studies revealed that properties of as-synthesized products are closer to that of CuO, rather than those of Cu metal and Cu₂O.

Original language	English
Pages (from-to)	11-16
Number of pages	6
Journal	Catalysis Communications
Volume	10
Issue number	1
DOIs	https://doi.org/10.1016/j.catcom.2008.07.022
Publication status	Published - 10 Oct 2008

Keywords

CuO
Nanostructures
Photocatalytic properties
XANES studies

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10.1016/j.catcom.2008.07.022

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title = "Flower-shaped CuO nanostructures: Structural, photocatalytic and XANES studies",

abstract = "Flower-shaped CuO nanostructures consist of triangular-shaped leaves, having sharpened tips with the wider bases, have been grown by simple aqueous solution process. Detailed structural observations exhibited the nanocrystalline nature with monoclinic structure for the as-synthesized nanostructures. The photocatalytic activity of the nanostructures was evaluated by examine the degradation of methylene blue. The photocatalytic property of the as-grown structures was probably due to the recycling of Cu1+ ion under light on the CuO interface and large surface area of the flower-like moieties. The XANES studies revealed that properties of as-synthesized products are closer to that of CuO, rather than those of Cu metal and Cu2O.",

keywords = "CuO, Nanostructures, Photocatalytic properties, XANES studies",

author = "M. Vaseem and A. Umar and Hahn, {Y. B.} and Kim, {D. H.} and Lee, {K. S.} and Jang, {J. S.} and Lee, {J. S.}",

note = "Funding Information: This work was supported by the Brain Korea 21 Project in 2008. This work was supported by the Korea Science and Engineering Foundation grant funded by the Korea Government (MEST) (R01-2006-000-11306-0). Authors wish to thanks Mr. T.S. Bae and J.C. Lim, KBSI, Jeonju branch, and Mr. Jong-Gyun Kang, Centre for University Research Facility (CURF) for taking good quality FESEM and TEM images, respectively.",

year = "2008",

month = oct,

day = "10",

doi = "10.1016/j.catcom.2008.07.022",

language = "English",

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journal = "Catalysis Communications",

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T1 - Flower-shaped CuO nanostructures

T2 - Structural, photocatalytic and XANES studies

AU - Vaseem, M.

AU - Umar, A.

AU - Hahn, Y. B.

AU - Kim, D. H.

AU - Lee, K. S.

AU - Jang, J. S.

AU - Lee, J. S.

N1 - Funding Information: This work was supported by the Brain Korea 21 Project in 2008. This work was supported by the Korea Science and Engineering Foundation grant funded by the Korea Government (MEST) (R01-2006-000-11306-0). Authors wish to thanks Mr. T.S. Bae and J.C. Lim, KBSI, Jeonju branch, and Mr. Jong-Gyun Kang, Centre for University Research Facility (CURF) for taking good quality FESEM and TEM images, respectively.

PY - 2008/10/10

Y1 - 2008/10/10

N2 - Flower-shaped CuO nanostructures consist of triangular-shaped leaves, having sharpened tips with the wider bases, have been grown by simple aqueous solution process. Detailed structural observations exhibited the nanocrystalline nature with monoclinic structure for the as-synthesized nanostructures. The photocatalytic activity of the nanostructures was evaluated by examine the degradation of methylene blue. The photocatalytic property of the as-grown structures was probably due to the recycling of Cu1+ ion under light on the CuO interface and large surface area of the flower-like moieties. The XANES studies revealed that properties of as-synthesized products are closer to that of CuO, rather than those of Cu metal and Cu2O.

AB - Flower-shaped CuO nanostructures consist of triangular-shaped leaves, having sharpened tips with the wider bases, have been grown by simple aqueous solution process. Detailed structural observations exhibited the nanocrystalline nature with monoclinic structure for the as-synthesized nanostructures. The photocatalytic activity of the nanostructures was evaluated by examine the degradation of methylene blue. The photocatalytic property of the as-grown structures was probably due to the recycling of Cu1+ ion under light on the CuO interface and large surface area of the flower-like moieties. The XANES studies revealed that properties of as-synthesized products are closer to that of CuO, rather than those of Cu metal and Cu2O.

KW - CuO

KW - Nanostructures

KW - Photocatalytic properties

KW - XANES studies

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SP - 11

EP - 16

JO - Catalysis Communications

JF - Catalysis Communications

IS - 1

ER -

Flower-shaped CuO nanostructures: Structural, photocatalytic and XANES studies

Abstract

Keywords

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