scholarly journals Factors affecting the adsorption efficiency of the vapor phase components of cigarette smoke by activated carbon fibers.

1987 ◽  
Vol 43 (2) ◽  
pp. 116-123
Author(s):  
Atushi Tokida ◽  
Taeko Toda ◽  
Kazuo Maeda
2006 ◽  
Vol 132 (3) ◽  
pp. 292-300 ◽  
Author(s):  
Wenguo Feng ◽  
Seokjoon Kwon ◽  
Xue Feng ◽  
Eric Borguet ◽  
Radisav D. Vidic

2021 ◽  
Vol 27 (2) ◽  
pp. 200549-0
Author(s):  
Soohyung Park ◽  
Muhammad Yaqub ◽  
Seunghan Lee ◽  
Wontae Lee

The adsorption of acetaldehyde from air using various activated carbon and carbon fibers was investigated in this study. These adsorbents included activated carbon (AC), carbon fibers (CFs), activated carbon fibers (ACFs), and metal-coated carbon fibers (MCCFs) supplied by different manufacturers. AC was categorized as AC1, AC2, AC3, and AC4, CFs were denoted as ACF1, while ACFs and MCCFs were expressed as ACF2 and ACF3, respectively. Five composite materials were prepared using the AC and ACFs in different ratios, and experiments were conducted to assess their acetaldehyde adsorption efficiency under dry and wet conditions. The results showed that the acetaldehyde adsorption efficiency of an impregnated AC4 was higher (95.9%) than that of both non-impregnated AC1 and AC3 and an impregnated AC2 after 1 min of operation. ACF2 showed a higher acetaldehyde adsorption efficiency (50.9%) as compared to ACF1 and ACF3 because of its larger surface area and selective absorption capability after 1 min of operation. A composite material comprising 6.3 g of AC4 and 1 g of ACF2 showed the highest adsorption efficiency of 97.9% under dry conditions. However, this adsorption efficiency significantly decreased under wet conditions.


2020 ◽  
Vol 2020 (11) ◽  
Author(s):  
Y Nakano ◽  
K Ichimura ◽  
H Ito ◽  
T Okada ◽  
H Sekiya ◽  
...  

Abstract The radioactive noble gas radon-222 ($\mathrm{^{222}Rn}$) produced in the uranium series is a crucial background source in many underground experiments. We have estimated the adsorption property of Rn with activated carbon fibers (ACFs) in air, argon, and xenon gas. We evaluated six ACFs, named A-7, A-10, A-15, A-20, A-25, and S-25, provided by Unitika Ltd. We measured the intrinsic radioactivity of these ACF samples, and found A-20’s radioactivity of the uranium series to be $<5.5$  $\mathrm{mBq/kg}$ with $90\%$ confidence level. In air and Ar gas, we found that ACF A-15 has an adsorption efficiency of $1/10000$ reduction at maximum before saturation of Rn adsorption, and more than $97\%$ adsorption efficiency after the saturation. In Xe gas, we found that ACF A-20 has the best Rn adsorption ability among the tested ACFs. We also found that S-25, A-25, and A-15 have similar Rn adsorption performance.


1999 ◽  
Vol 11 (12) ◽  
pp. 3476-3483 ◽  
Author(s):  
Christian L. Mangun ◽  
Kelly R. Benak ◽  
Michael A. Daley ◽  
James Economy

1998 ◽  
Vol 5 (3-4) ◽  
pp. 261-266 ◽  
Author(s):  
M. Endo ◽  
T. Furuta ◽  
F. Minoura ◽  
C. Kim ◽  
K. Oshida ◽  
...  

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