Photodegradation of methyl violet dye using ZnO nanorods

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• 作者：I. Kartharinal Punithavathy…
• 刊名：Journal of Materials Science: Materials in Electronics
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：28
• 期：3
• 页码：2494-2501
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Optical and Electronic Materials; Characterization and Evaluation of Materials;
• 出版者：Springer US
• ISSN：1573-482X
• 卷排序：28

文摘

Zinc oxide nanorods were prepared at 3, 6, 9 and 12 h by using solid state reaction method with appropriate reactants. The structural, optical and morphological properties of the synthesized samples were investigated. The XRD analysis revealed that the nanorods were polycrystalline in nature and having hexagonal wurtzite crystal structure with a preferred grain orientation along (101) direction. The optical band gap energy values were increased from 3.35 to 3.50 eV with increase in annealing temperatures. From the PL spectra, the strong red emission and weak blue emission were observed. The functional groups present in the samples were identified by FTIR spectroscopy. The microstructure and elemental identifications were done by SEM and TEM with EDX analysis. The photocatalytic performance of the ZnO nanorods was evaluated using methyl violet dye as a model contaminant.