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P. GOWTHAMAN1,2,* , M. SAROJA2, M. VENKATACHALAM2, J. DEENATHAYALAN1,3, T. S. SENTHIL4
This study involves the photo catalytic degradation of methelene blue dye, employing photo catalytic process using hydrothermally grown zinc oxide (ZnO) nanorods. ZnO nano rods were grown by hydrothermal method from aqueous solution of Zinc Nitrate and hexamethylenetetramine with seed layer of Zinc acetate dehydrate at low temperature of 90 °C. The prepared ZnO nano rods were annealed at three different temperatures of 300 °C, 400 °C and 500 °C in air atmosphere. These nano rods were used as catalyst in to methelene blue dye. The properties of ZnO nano rods and their growth mechanisms were studied using x-ray diffraction, scanning electron microscopy, UV-Visible spectroscopy and photoluminescence measurements. Catalytic activity of ZnO nanorods has been investigated. An attempt has been made to study the effect of process parameter through irradiation time on photo catalytic degradation of methelene blue. The experiments were carried out by varying irradiation time (1 hour, 2 hour and 3 hour) and area of the catalyst (1 cm2 to 2 cm2). The photo degradation of methelene blue with ZnO nano rods were studied using optical measurements. The optimum irradiation time and area of catalyst was found to be 3 hours and 2 cm2 respectively for methelene blue..
Degradation, Azo dye, Methelene blue, Photo catalysis, ZnO nanorods.
P. GOWTHAMAN, M. SAROJA, M. VENKATACHALAM, J. DEENATHAYALAN, T. S. SENTHIL, Photocatalytic degradation of methelene blue dye using hydrothermally synthesized ZnO nanorods, Optoelectronics and Advanced Materials - Rapid Communications, 5, 12, December 2011, pp.1307-1311 (2011).
Submitted at: Oct. 23, 2011
Accepted at: Nov. 24, 2011
Optoelectronics and Advanced Materials - Rapid Communications
(2022): 0.5 - 2022 Journal Citation Reports (Clarivate Analytics, 2023)
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