Inactivation of Bioaerosols in Dentist Clinic by Carbon Nanotube Discharge Plasma

2020 ◽  
pp. 49-56
Author(s):  
Hsiao-Chien Huang ◽  
Ying-Fang Hsu ◽  
Shinhao Yang ◽  
Chi-Yu Chuang ◽  
Wei-Ting Liu
Keyword(s):  
Carbon Nanotube ◽  
Discharge Plasma

Effects of strong magnetic field on carbon nanotube formation using rf glow-discharge plasma

2006 ◽  
Vol 506-507 ◽  
pp. 259-262 ◽  
Author(s):  
T. Kaneko ◽  
H. Matsuoka ◽  
T. Hirata ◽  
R. Hatakeyama ◽  
K. Tohji
Keyword(s):  
Magnetic Field ◽  
Carbon Nanotube ◽  
Glow Discharge ◽  
Strong Magnetic Field ◽  
Discharge Plasma ◽  
Glow Discharge Plasma ◽  
Rf Glow Discharge

Removal Efficiency of Virus Aerosols Using Carbon Nanotube Plasma

2011 ◽  
Vol 183-185 ◽  
pp. 2232-2236
Author(s):  
Yi Chin Huang ◽  
Shin Hao Yang ◽  
Chin Hsiang Luo ◽  
Yi Chang Lin ◽  
Cheng Ping Jimmy Chuang ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Corona Discharge ◽  
Removal Efficiency ◽  
Discharge Plasma ◽  
Plasma Technology ◽  
Discharge System ◽  
Removal Efficiencies ◽  
Reduction Characteristics ◽  
Corona Discharge Plasma ◽  
Steel Electrodes

This work aims to remove virus bioaerosol by using carbon nanotube corona discharge plasma technology. The λ virus bioaerosols are generated using a Collison nebulizer, as the challenged bioaerosols. Exactly how various factors, including the flow rate (30, 60, and 90 lpm) and the operating voltages (-1.5, -3.0, -4.5, -6.0, and -7.5 kV), affect the bioaerosol reduction characteristics is also evaluated. Experimental results indicate that the corona discharge while using the carbon nanotube electrodes obviously decreases the threshold voltage of plasma. The removal efficiencies of λ virus bioaerosols by using the carbon nanotube corona discharge system at discharge voltages of -1.5, -3.0, -4.5, -6.0, and -7.5 kV are 53%, 60%, 68%, 89%, and 91%, respectively. Additionally, the corona discharge system that incorporates use of the carbon nanotube electrodes performs far superior to that incorporates the use of the stainless steel electrodes in terms of bioaerosol removal efficiency.

Theoretical investigations on the effect of different plasmas on growth and field emission properties of a spherical carbon nanotube (CNT) tip placed over cylindrical surfaces

2013 ◽  
Vol 79 (5) ◽  
pp. 939-948 ◽  
Author(s):  
AARTI TEWARI ◽  
SURESH C. SHARMA
Keyword(s):  
Carbon Nanotube ◽  
Field Emission ◽  
Discharge Plasma ◽  
Glow Discharge Plasma ◽  
Large Radius ◽  
Plasma Parameters ◽  
Emission Properties ◽  
Field Emission Properties ◽  
Spherical Carbon ◽  
Theoretical Investigations

AbstractThe theoretical investigations on the effect of different plasmas on the growth and field emission properties of a spherical carbon nanotube (CNT) tip placed over cylindrical CNT surfaces have been carried out for the typical glow discharge plasma parameters. Different plasmas such as H2, Ar, CH4 and CF4 have been considered, and the growth of the CNT in the presence of various plasmas has been estimated in the present investigation. This study suggests that the field emission from the CNT grown in the presence of the H2 plasma is largest. It is also found that amongst the plasmas considered, the CF4 plasma is the most favourable for the growth of the large radius CNT, since the radius achieved in the CF4 plasma is the largest.

scholarly journals One-Step Synthesis of SnO2/Carbon Nanotube Nanonests Composites by Direct Current Arc-Discharge Plasma and Its Application in Lithium-Ion Batteries

Nanomaterials ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 3138
Author(s):  
Da Zhang ◽  
Yuanzheng Tang ◽  
Chuanqi Zhang ◽  
Qianpeng Dong ◽  
Wenming Song ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Lithium Ion Batteries ◽  
Direct Current ◽  
Discharge Plasma ◽  
Arc Discharge ◽  
Synthesis Method ◽  
Lithium Ion ◽  
Synthesis Process ◽  
Plasma Synthesis ◽  
One Step

Tin dioxide (SnO2)-based materials, as anode materials for lithium-ion batteries (LIBs), have been attracting growing research attention due to the high theoretical specific capacity. However, the complex synthesis process of chemical methods and the pollution of chemical reagents limit its commercialization. The new material synthesis method is of great significance for expanding the application of SnO2-based materials. In this study, the SnO2/carbon nanotube nanonests (SnO2/CNT NNs) composites are synthesized in one step by direct current (DC) arc-discharge plasma; compared with conventional methods, the plasma synthesis achieves a uniform load of SnO2 nanoparticles on the surfaces of CNTs while constructing the CNTs conductive network. The SnO2/CNT NNs composites are applied in LIBs, it can be found that the nanonest-like CNT conductive structure provides adequate room for the volume expansion and also helps to transfer the electrons. Electrochemical measurements suggests that the SnO2/CNT NNscomposites achieve high capacity, and still have high electrochemical stability and coulombic efficiency under high current density, which proves the reliability of the synthesis method. This method is expected to be industrialized and also provides new ideas for the preparation of other nanocomposites.

Synthesis of Carbon-Nanotube Fine Particles in a Glow-Discharge Plasma and Evaluation of Hydrogen Storage Properties

2011 ◽  
Vol 50 (8S1) ◽  
pp. 08JF09 ◽  
Author(s):  
Yasuaki Hayashi ◽  
Masayoshi Imano ◽  
Yumi Kinoshita ◽  
Yoshifumi Kimura ◽  
Yasuhiro Masaki
Keyword(s):  
Carbon Nanotube ◽  
Glow Discharge ◽  
Hydrogen Storage ◽  
Fine Particles ◽  
Discharge Plasma ◽  
Glow Discharge Plasma ◽  
Hydrogen Storage Properties ◽  
Storage Properties
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