NH 4 + directed assembly of zinc oxide micro-tubes from nanoflakes

Weiyi Yang; Qi Li; Shian Gao; Jian Ku Shang

doi:10.1186/1556-276X-6-491

NH ₄ ⁺ directed assembly of zinc oxide micro-tubes from nanoflakes

Weiyi Yang, Qi Li, Shian Gao, Jian Ku Shang

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

Abstract

A simple precipitation process followed with the heat treatment was developed to synthesize ZnO micro-tubes by self-assembly of nanoflakes composed of nanoparticles. The resulting ZnO micro-tubes demonstrated excellent photocatalytic performance in degrading methylene blue (MB) under UV illumination. It was found that NH ₄ ⁺ ion played a critical role in directing the assembly of the nanoflakes to form the micro-tube structure. A critical reaction ratio existed at or above which the ZnO micro-tubes could be obtained. For the mixtures of solutions of (NH ₄) ₂CO ₃ and zinc salt, the ratio (C _{(NH4)2 CO3}/C _Zn2+) was 2:1.

Original language	English (US)
Article number	491
Pages (from-to)	1-10
Number of pages	10
Journal	Nanoscale Research Letters
Volume	6
DOIs	https://doi.org/10.1186/1556-276X-6-491
State	Published - 2011
Externally published	Yes

Keywords

NH directed growth
Nanoparticles
Self-assembly
Zno micro-tubes

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics

Online availability

10.1186/1556-276X-6-491

Library availability

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Cite this

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title = "NH 4 + directed assembly of zinc oxide micro-tubes from nanoflakes",

abstract = "A simple precipitation process followed with the heat treatment was developed to synthesize ZnO micro-tubes by self-assembly of nanoflakes composed of nanoparticles. The resulting ZnO micro-tubes demonstrated excellent photocatalytic performance in degrading methylene blue (MB) under UV illumination. It was found that NH 4 + ion played a critical role in directing the assembly of the nanoflakes to form the micro-tube structure. A critical reaction ratio existed at or above which the ZnO micro-tubes could be obtained. For the mixtures of solutions of (NH 4) 2CO 3 and zinc salt, the ratio (C (NH4)2 CO3/C Zn2+) was 2:1.",

keywords = "NH directed growth, Nanoparticles, Self-assembly, Zno micro-tubes",

author = "Weiyi Yang and Qi Li and Shian Gao and Shang, {Jian Ku}",

note = "Funding Information: This study was supported by the National Basic Research Program of China, Grant No. 2006CB601201, the Knowledge Innovation Program of Chinese Academy of Sciences, Grant No. Y0N5711171, and the Knowledge Innovation Program of Institute of Metal Research, Grant No. Y0N5A111A1.",

year = "2011",

doi = "10.1186/1556-276X-6-491",

language = "English (US)",

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journal = "Nanoscale Research Letters",

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T1 - NH 4 + directed assembly of zinc oxide micro-tubes from nanoflakes

AU - Yang, Weiyi

AU - Li, Qi

AU - Gao, Shian

AU - Shang, Jian Ku

N1 - Funding Information: This study was supported by the National Basic Research Program of China, Grant No. 2006CB601201, the Knowledge Innovation Program of Chinese Academy of Sciences, Grant No. Y0N5711171, and the Knowledge Innovation Program of Institute of Metal Research, Grant No. Y0N5A111A1.

PY - 2011

Y1 - 2011

N2 - A simple precipitation process followed with the heat treatment was developed to synthesize ZnO micro-tubes by self-assembly of nanoflakes composed of nanoparticles. The resulting ZnO micro-tubes demonstrated excellent photocatalytic performance in degrading methylene blue (MB) under UV illumination. It was found that NH 4 + ion played a critical role in directing the assembly of the nanoflakes to form the micro-tube structure. A critical reaction ratio existed at or above which the ZnO micro-tubes could be obtained. For the mixtures of solutions of (NH 4) 2CO 3 and zinc salt, the ratio (C (NH4)2 CO3/C Zn2+) was 2:1.

AB - A simple precipitation process followed with the heat treatment was developed to synthesize ZnO micro-tubes by self-assembly of nanoflakes composed of nanoparticles. The resulting ZnO micro-tubes demonstrated excellent photocatalytic performance in degrading methylene blue (MB) under UV illumination. It was found that NH 4 + ion played a critical role in directing the assembly of the nanoflakes to form the micro-tube structure. A critical reaction ratio existed at or above which the ZnO micro-tubes could be obtained. For the mixtures of solutions of (NH 4) 2CO 3 and zinc salt, the ratio (C (NH4)2 CO3/C Zn2+) was 2:1.

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