Reactive Nitrogen Species Generated by Gas–Liquid Dielectric Barrier Discharge for Efficient Degradation of Perfluorooctanoic Acid from Water

2021 ◽  
Author(s):  
Dahai Zhu ◽  
Zhuyu Sun ◽  
Han Zhang ◽  
Ai Zhang ◽  
Yinyin Zhang ◽  
...  
Keyword(s):  
Dielectric Barrier Discharge ◽  
Reactive Nitrogen Species ◽  
Barrier Discharge ◽  
Perfluorooctanoic Acid ◽  
Liquid Dielectric ◽  
Reactive Nitrogen ◽  
Nitrogen Species ◽  
Dielectric Barrier

scholarly journals A low power flexible dielectric barrier discharge disinfects surfaces and improves the action of hydrogen peroxide

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Sophia Gershman ◽  
Maria B. Harreguy ◽  
Shurik Yatom ◽  
Yevgeny Raitses ◽  
Phillip Efthimion ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Dielectric Barrier Discharge ◽  
Atmospheric Pressure ◽  
Reactive Nitrogen Species ◽  
Barrier Discharge ◽  
Ambient Air ◽  
Hydrogen Peroxide Solution ◽  
Reactive Nitrogen ◽  
Nitrogen Species ◽  
Dielectric Barrier

AbstractThere is an urgent need for disinfection and sterilization devices accessible to the public that can be fulfilled by innovative strategies for using cold atmospheric pressure plasmas. Here, we demonstrate a successful novel combination of a flexible printed circuit design of a dielectric barrier discharge (flex-DBD) with an environmentally safe chemical reagent for surface decontamination from bacterial contaminants. Flex-DBD operates in ambient air, atmospheric pressure, and room temperature without any additional gas flow at a power density not exceeding 0.5 W/cm2. The flex-DBD activation of a 3% hydrogen peroxide solution results in the reduction in the bacterial load of a surface contaminant of > 6log10 in 90 s, about 3log10 and 2log10 better than hydrogen peroxide alone or the flex-DBD alone, respectively, for the same treatment time. We propose that the synergy between plasma and hydrogen peroxide is based on the combined action of plasma-generated OH· radicals in the hydrogen peroxide solution and the reactive nitrogen species supplied by the plasma effluent. A scavenger method verified a significant increase in OH· concentration due to plasma treatment. Novel in-situ FTIR absorption spectra show the presence of O3, NO2, N2O, and other nitrogen species. Ozone dissolving in the H2O2 solution can effectively generate OH· through a peroxone process. The addition of the reactive nitrogen species increases the disinfection efficiency of the hydroxyl radicals and other oxygen species. Hence, plasma activation of a low concentration hydrogen peroxide solution, using a hand-held flexible DBD device results in a dramatic improvement in disinfection.

Degradation of Alizarin Red by Hybrid Gas-Liquid Dielectric Barrier Discharge

2014 ◽  
Vol 16 (11) ◽  
pp. 1036-1041 ◽  
Author(s):  
Qifu Lin ◽  
Guohua Ni ◽  
Yiman Jiang ◽  
Wenwei Wu ◽  
Yuedong Meng
Keyword(s):  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Liquid Dielectric ◽  
Alizarin Red ◽  
Dielectric Barrier

Research on Methylene Blue Degradation Based on Multineedle-to-Plane Liquid Dielectric Barrier Discharge Mode

2021 ◽  
Author(s):  
Xiaoli Zhang ◽  
Penghui Shi ◽  
Wenbin Zhao ◽  
Wu Lu ◽  
Feng Li ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Liquid Dielectric ◽  
Discharge Mode ◽  
Dielectric Barrier ◽  
Methylene Blue Degradation

Gas-liquid dielectric barrier discharge falling film reactor for the decoloration of dyeing water

2014 ◽  
Vol 91 (2) ◽  
pp. 431-438 ◽  
Author(s):  
Xuelan Feng ◽  
Binhang Yan ◽  
Qianli Yang ◽  
Yong Jin ◽  
Yi Cheng
Keyword(s):  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Liquid Dielectric ◽  
Falling Film ◽  
Dielectric Barrier ◽  
Film Reactor

Degradation of tetracycline in aqueous solution by persulfate assisted gas‐liquid dielectric barrier discharge

2020 ◽  
Author(s):  
Haixia Wu ◽  
Jiawei Fan ◽  
Feng Liu ◽  
Lisha Shu ◽  
Baojian Yin
Keyword(s):  
Aqueous Solution ◽  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Liquid Dielectric ◽  
Dielectric Barrier

Enhanced degradation of perfluorooctanoic acid using dielectric barrier discharge with La/Ce-doped TiO2

2017 ◽  
Vol 24 (18) ◽  
pp. 15794-15803 ◽  
Author(s):  
Shanping Li ◽  
Xiaoping Wang ◽  
Lijun Liu ◽  
Yongbo Guo ◽  
Qinglin Mu ◽  
...  
Keyword(s):  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Perfluorooctanoic Acid ◽  
Dielectric Barrier ◽  
Doped Tio2 ◽  
Enhanced Degradation

scholarly journals Potential Application of Pin-to-Liquid Dielectric Barrier Discharge Structure in Decomposing Aqueous Phosphorus Compounds for Monitoring Water Quality

Materials ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 7559
Author(s):  
Gyu Tae Bae ◽  
Jae Young Kim ◽  
Do Yeob Kim ◽  
Eun Young Jung ◽  
Hyo Jun Jang ◽  
...  
Keyword(s):  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Liquid Dielectric ◽  
Phosphorus Compounds ◽  
Dielectric Barrier ◽  
Pretreatment Method ◽  
Thermochemical Pretreatment ◽  
Ground Plate ◽  
Dbd Reactor ◽  
Plate Type

Here, we proposed a pin-to-liquid dielectric barrier discharge (DBD) structure that used a water-containing vessel body as a dielectric barrier for the stable and effective treatment of aqueous solutions in an open atmosphere. To obtain an intense pin-to-liquid alternating current discharge using a dielectric barrier, discharge characteristics, including the area and shape of a ground-plate-type electrode, were investigated after filling the vessel with equivalent amounts of water. Consequently, as the area of the ground electrode increased, the discharge current became stronger, and its timing became faster. Moreover, we proposed that the pin-to-liquid DBD reactor could be used to decompose phosphorus compounds in water in the form of phosphate as a promising pretreatment method for monitoring total phosphorus in water. The decomposition of phosphorus compounds using the pin-to-liquid DBD reactor demonstrated excellent performance—comparable to the thermochemical pretreatment method—which could be a standard pretreatment method for decomposing phosphorus compounds in water.

scholarly journals Variation in structure of proteins by adjusting reactive oxygen and nitrogen species generated from dielectric barrier discharge jet

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Ji Hoon Park ◽  
Minsup Kim ◽  
Masaharu Shiratani ◽  
Art. E. Cho ◽  
Eun Ha Choi ◽  
...  
Keyword(s):  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Reactive Oxygen ◽  
Nitrogen Species ◽  
Dielectric Barrier ◽  
Structure Of Proteins
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