Dispersion of Relatively Long Multi-walled Carbon Nanotubes in Water using Ozone Generated by Dielectric Barrier Discharge

2016 ◽  
Vol 136 (4) ◽  
pp. 180-185 ◽  
Author(s):  
Zaw Lin ◽  
Mitsunobu Yoshida ◽  
Yuki Uesugi ◽  
Karthik Paneer Selvam ◽  
Takeshi Nishikawa ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Dielectric Barrier ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

scholarly journals Synergistic photocatalytic activity of a combination of carbon nanotubes-graphene-nickel foam nanocomposites enhanced by dielectric barrier discharge plasma technology for water purification

2021 ◽  
Author(s):  
Qihui Xu ◽  
Shuaikang Fang ◽  
Yin Chen ◽  
Jae Kwang Park ◽  
Chao Pan ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Carbon Nanotubes ◽  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Nickel Foam ◽  
Gas Chromatography Mass Spectrometry ◽  
Discharge Process ◽  
Dielectric Barrier ◽  
Chromatography Mass Spectrometry ◽  
Vis Spectroscopy

Abstract Degradation activity of plasma catalysis between dielectric barrier discharge (DBD) and carbon nanotubes-graphene-nickel foam (CNTs-G-Nif) has been studied in treatment of dye wastewater. CNTs-G-Nif was prepared through a two-step chemical vapor deposition (CVD) approach. The composite has been characterized by different techniques such as X-ray diffraction (XRD), scanning electron microscope (SEM) and Raman spectroscopy. SEM results showed that the Nif as the growth substrate was evenly wrapped by G and then CNTs were successfully grown on G as the support. The growth mechanism of composite was proposed. The possible coupled catalytic mechanism between DBD and CNTs-G-Nif were addressed. In addition, the modification on G-Nif was found by SEM during the discharge process in liquid phase. And the modification mechanism of DBDP acting on composites was discussed. Finally, by means of analyses of ultraviolet-visible (UV-Vis) spectroscopy, Fourier transform infrared (FT-IR) spectroscopy, gas chromatography-mass spectrometry (GC-MS) and liquid chromatography-mass spectrometry (LC-MS), the general degradation pathway and stepwise degradation pathways of alizarin green (AG) were proposed in detail.

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