Preparation of Flower-like ZnO Hierarchical Nanostructures for Photodegradation of Phenol under a Compact Fluorescent Lamp

ISSN: 2212-7186 (Online)
ISSN: 2212-7178 (Print)


Volume 1, 3 Issues, 2014






Current Environmental Engineering

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Editor-in-Chief:
Jong Moon Park
Department of Chemical Engineering
School of Environmental Engineering
Pohang University of Science and Technology
Pohang, Kyungbuk
Korea


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Preparation of Flower-like ZnO Hierarchical Nanostructures for Photodegradation of Phenol under a Compact Fluorescent Lamp

Author(s): Sin JC, Lam SM, Lee KT and Mohamed AR

Affiliation: School of Chemical Engineering, Universiti Sains Malaysia, Engineering Campus, 14300 Nibong Tebal, Pulau Pinang, Malaysia.

Abstract

This paper reports the synthesis of flower-like ZnO hierarchical nanostructures via a simple and economical citric acid-mediated hydrothermal route. The synthesized ZnO hierarchical nanostructures were characterized in detail by FESEM, EDX, XRD, UV-Vis, FTIR and Raman analyses. The observation of FESEM showed that the obtained flower-like ZnO were self-assembled by large amounts of interleaving nanosheets with an average thickness of about 88 nm. The XRD, FTIR and Raman results showed that as-synthesized ZnO products were well-crystalline and possessed wurtzite structure. By utilizing the flower-like ZnO hierarchical nanostructures as photocatalysts, considerable photocatalytic degradation was observed towards phenol in the presence of a compact fluorescent lamp. The degradation of phenol was further confirmed by the formation of intermediate products in the HPLC data and decrease of total organic carbon (TOC) concentration. The flower-like ZnO was also reused for several times and without considerable loss of activity. These characteristics showed the practical applications of the flower-like ZnO hierarchical nanostructures in environmental remediation.


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Article Details

Volume: 1
First Page: 1
Last Page: 1
Page Count: 1
DOI: 10.2174/2212717801666140307002005
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