TY - JOUR
T1 - Atmospheric-pressure pulsed discharge plasma in capillary slug flow system for dye decomposition
AU - Wahyudiono,
AU - Mano, Kakeru
AU - Hayashi, Yui
AU - Yamada, Motoki
AU - Takahashi, Shigenori
AU - Takada, Noriharu
AU - Kanda, Hideki
AU - Goto, Motonobu
N1 - Funding Information:
This work was supported by Grants−in−Aid for Scientific Research on Innovative Areas “Frontier Science of Interactions between Plasmas and Nano−Interfaces” (Nos. 21110004 and 21110009 ) from the Ministry of Education, Culture, Sports, Science and Technology, Japan .
Publisher Copyright:
© 2018
PY - 2019/1
Y1 - 2019/1
N2 - In this study, the introduction of non-equilibrium atmospheric-pressure plasma in a slug flow reactor system is demonstrated as a chemical reaction medium. The water containing Coomassie Brilliant Blue R − 250 (CBB) and various gas species are used as the liquid and gas phases, respectively, which are flown at 1.5 and 0.5 mL/min. The optical emission spectra indicate that different reactive oxidation species are generated by each gas when the pulsed discharge plasma is applied to the slug flow reactor system. The oxygen-base reactive species are found in abundance. The decoloration of CBB seems to occur, which is indicated by a change in the color of the aqueous solution. The UV − vis spectra show that the order of the CBB decomposition rate is oxygen > air > nitrogen > argon > helium.
AB - In this study, the introduction of non-equilibrium atmospheric-pressure plasma in a slug flow reactor system is demonstrated as a chemical reaction medium. The water containing Coomassie Brilliant Blue R − 250 (CBB) and various gas species are used as the liquid and gas phases, respectively, which are flown at 1.5 and 0.5 mL/min. The optical emission spectra indicate that different reactive oxidation species are generated by each gas when the pulsed discharge plasma is applied to the slug flow reactor system. The oxygen-base reactive species are found in abundance. The decoloration of CBB seems to occur, which is indicated by a change in the color of the aqueous solution. The UV − vis spectra show that the order of the CBB decomposition rate is oxygen > air > nitrogen > argon > helium.
KW - CBB
KW - Decomposition
KW - Dye
KW - Pulsed discharge plasma
KW - Wastewater
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U2 - 10.1016/j.cep.2018.11.023
DO - 10.1016/j.cep.2018.11.023
M3 - Article
AN - SCOPUS:85057894422
SN - 0255-2701
VL - 135
SP - 133
EP - 140
JO - Chemical Engineering and Processing: Process Intensification
JF - Chemical Engineering and Processing: Process Intensification
ER -