Cold Atmospheric Pressure Argon Plasma Jet Assisted Degradation of Malachite Green (MG) Aqueous Solution

Vasu D; Ramkumar M.C; Arunkumar A; Navaneetha Pandiyaraj K

doi:10.34256/famr2016

Vasu D Research Division of Plasma Processing (RDPP), Department of Physics, Sri Shakthi Institute of Engineering and Technology, L&T by pass, Chinniyam Palayam (post), Coimbatore-641062, Tamil Nadu, India.
Ramkumar M.C Department of Physics, School of Basic Sciences, Vels Institute of Science, Technology & Advanced Studies, Chennai-600117, Tamil Nadu, India.
Arunkumar A Research Division of Plasma Processing (RDPP), Department of Physics, Sri Shakthi Institute of Engineering and Technology, L&T by pass, Chinniyam Palayam (post), Coimbatore-641062, Tamil Nadu, India.
Navaneetha Pandiyaraj K Research Division of Plasma Processing (RDPP), Department of Physics, Sri Shakthi Institute of Engineering and Technology, L&T by pass, Chinniyam Palayam (post), Coimbatore-641062, Tamil Nadu, India.

DOI: https://doi.org/10.34256/famr2016

Keywords: Cold atmospheric pressure plasma jet, Malachite Green (MG), Optical Emission spectrum, TOC

Abstract

The oxidative degradation of cold atmospheric pressure plasma assisted degradation of malachite Green (MG) was investigated in this study. Cold atmospheric pressure plasma assisted MG degradation process was carried out as a function various plasma treatment time (05, 10, and 15 mins). The % of degradation and presence carbon content in the plasma treated MG was examined by UV-Visible spectroscopy (UV-Vis) and total organic carbon (TOC) analyzer. Optical emission spectrometer was used to identify formation of various reactive species during in situ plasma treatment. The higher degradation percentage of 90% was obtained after plasma treatment time of 15 min and value of TOC also found to decreased significantly with increasing plasma treatment time. Toxicity of the plasma-treated MG aqueous solution samples was also examined by Staphylococcus aureus (S.aureus) bacteria.

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