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Importance of ZnO nanorods prepared from hydrothermal method for various dyes degradation



  1. Department of Physics, Erode Sengunthar Engineering College, Thudupathi, Erode-638476
  2. Department of Physics, Coimbatore Institute of Technology, Coimbatore-641 014
  3. Luminous Center of Excellence for Semiconductor Lighting and Displays, School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore


Vertically-aligned ZnO nanorods have been prepared by dip coating and hydrothermal method. The crystallinity and morphology of the prepared ZnO nanorods have been studied by using XRD, FE-SEM and UV-Visible spectroscopy. Anionic (Methyl Orange) and cationic (Methylene Blue) dyes were degraded, either individually or in mixtures, by using UVirradiated ZnO nanorods. High photocatalytic activity results suggest that ZnO nanorod/UV photocatalyst may be envisaged as a method for treatment of dilute colored waste waters not only for degradation, but also for detoxification, especially for the textile industries in semi-arid countries.


Hydrothermal, ZnO nanorods, Anionic and cationic dye, Photocatalytic activity.

Submitted at: April 17, 2017
Accepted at: Oct. 10, 2017


N. SRIHARAN, N. MUTHUKUMARASAMY, M. THAMBIDURAI, T. S. SENTHIL, Importance of ZnO nanorods prepared from hydrothermal method for various dyes degradation, Journal of Optoelectronics and Advanced Materials Vol. 19, Iss. 9-10, pp. 634-640 (2017)