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

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...

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Detalles Bibliográficos
Autores principales: Yang, Weiyi, Li, Qi, Gao, Shian, Shang, Jian Ku
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer 2011
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3212006/
https://www.ncbi.nlm.nih.gov/pubmed/21835021
http://dx.doi.org/10.1186/1556-276X-6-491
Descripción
Sumario: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))(2)CO(3 )and zinc salt, the ratio ([Image: see text]) was 2:1.

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