Fixed Bed Adsorption of Acetone and Ammonia onto Oxidized Activated Carbon Fibers

1999 ◽  
Vol 38 (9) ◽  
pp. 3499-3504 ◽  
Author(s):  
Christian L. Mangun ◽  
Richard D. Braatz ◽  
James Economy ◽  
Allen J. Hall
Keyword(s):  
Activated Carbon ◽  
Carbon Fibers ◽  
Fixed Bed ◽  
Activated Carbon Fibers ◽  
Fixed Bed Adsorption ◽  
Oxidized Activated Carbon

Role of Carboxylic Sites in the Adsorption of Nickel (II) and Zinc (II) onto Plain and Oxidized Activated Carbon Fibers

2013 ◽  
Vol 224 (7) ◽  
Author(s):  
M. S. Berber-Mendoza ◽  
R. Leyva-Ramos ◽  
F. J. Cerino-Cordoba ◽  
J. Mendoza-Barron ◽  
H. J. Amezquita Garcia ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Carbon Fibers ◽  
Activated Carbon Fibers ◽  
Oxidized Activated Carbon

Dynamic Adsorption and Desorption of Toluene on Carbon Nanotubes Grafted Activated Carbon Fibers

2013 ◽  
Vol 284-287 ◽  
pp. 72-76 ◽  
Author(s):  
Yu Chun Chiang ◽  
Wei Hsiang Lin
Keyword(s):  
Carbon Nanotubes ◽  
Activated Carbon ◽  
Surface Area ◽  
Carbon Fibers ◽  
Physical Adsorption ◽  
Fixed Bed ◽  
Chemical Vapor Deposition Method ◽  
Active Surface Area ◽  
Activated Carbon Fibers ◽  
Adsorption And Desorption

Activated carbon fibers (ACFs) are widely used adsorbents due to their small fiber diameter, uniform pore size distribution and rapid adsorption/desorption rate. In addition, carbon nanotubes (CNTs) have received much attention recently because of their excellent mechanical and electrical properties and being candidates for adsorption. Thus, it should be highly interested as grafting CNTs onto ACFs to form a hybrid adsorbent. Therefore, the objective of this paper is to investigate the physicochemical properties of ACFs grafted with nitrogen-doped CNTs (CNs) and determine the adsorption and desorption performance of toluene vapor on this hybrid adsorbent. The chemical vapor deposition method was used for growth of CNs directly onto ACFs. The resulting materials were characterized by several techniques. Next, the adsorption breakthrough behaviors of toluene on the samples were measured in a continuous flow-type fixed-bed system. And then the temperature programmed desorption system was utilized to observe the desorption characteristics of toluene from the samples. Results show that the CNs have been grafted homogeneously onto the ACFs. The attachment of CNs on ACFs was believed to block part of the active surface area, causing the decrease in specific surface area and pore volume, but lead to the increase in microporosity. The adsorption of toluene on ACFs or the hybrid adsorbent was physical adsorption. At higher adsorption temperatures, the hybrid adsorbent could maintain high enough capacities of toluene and even exceed the performance of ACFs. Moreover, toluene could be desorbed completely from ACFs and the hybrid adsorbent up to 400 oC with the highest desorption efficiency at about 180 oC.

scholarly journals Adsorption of Pb(II) from Aqueous Solution on Oxidized Activated Carbon Fibers

2015 ◽  
Vol 71 (5) ◽  
pp. 180-190 ◽  
Author(s):  
Shimeng Chensun ◽  
Yoshimasa Amano ◽  
Motoi Machida ◽  
Fumio Imazeki
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Carbon Fibers ◽  
Activated Carbon Fibers ◽  
Oxidized Activated Carbon

Energetic heterogeneity of oxidized activated carbon fibers

1992 ◽  
Vol 30 (4) ◽  
pp. 239-243 ◽  
Author(s):  
M. Jaroniec ◽  
J. Choma ◽  
K. Kaneko ◽  
K. Kakei
Keyword(s):  
Activated Carbon ◽  
Carbon Fibers ◽  
Activated Carbon Fibers ◽  
Energetic Heterogeneity ◽  
Oxidized Activated Carbon
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