Surface modified mechanism of activated carbon fibers by thermal chemical vapor deposition and nitrate adsorption characteristics in aqueous solution

2019 ◽  
Vol 580 ◽  
pp. 123710 ◽  
Author(s):  
Jinghan Yuan ◽  
Yoshimasa Amano ◽  
Motoi Machida
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Chemical Vapor Deposition ◽  
Carbon Fibers ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Activated Carbon Fibers ◽  
Thermal Chemical Vapor Deposition ◽  
Nitrate Adsorption ◽  
Surface Modified

The modification of pore size in activated carbon fibers by chemical vapor deposition and its effects on molecular sieve selectivity

Carbon ◽  
1998 ◽  
Vol 36 (4) ◽  
pp. 377-382 ◽  
Author(s):  
Yuji Kawabuchi ◽  
Hidetoshi Oka ◽  
Shizuo Kawano ◽  
Isao Mochida ◽  
Noriko Yoshizawa
Keyword(s):  
Activated Carbon ◽  
Chemical Vapor Deposition ◽  
Pore Size ◽  
Carbon Fibers ◽  
Vapor Deposition ◽  
Molecular Sieve ◽  
Chemical Vapor ◽  
Activated Carbon Fibers

scholarly journals Effective preparation of nitrogen-doped activated carbon by aniline thermal chemical vapor deposition for arsenate adsorption

2019 ◽  
Vol 25 (5) ◽  
pp. 707-713 ◽  
Author(s):  
Pyunghwa Yoo ◽  
Yoshimasa Amano ◽  
Motoi Machida
Keyword(s):  
Heat Treatment ◽  
Activated Carbon ◽  
Chemical Vapor Deposition ◽  
Adsorption Capacity ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Steam Activation ◽  
Thermal Chemical Vapor Deposition ◽  
Nitrogen Doped ◽  
Arsenate Adsorption

Nitrogen-free phenol resin fiber was used to examine the effect of nitrogen-introduction via thermal chemical vapor deposition (CVD) using nitrogen-containing chemicals. In this study, a combination of heat treatment, steam activation, aniline CVD was conducted to prepare the nitrogen-doped activated carbon (AC) and the effective procedure was studied to enhance arsenic adsorption capacity. As a result, consecutive treatment of steam activation as pre-treatment, aniline CVD, steam activation for porous structure, and at least heat treatment was the best processing order for the preparation of ACs. Heat-treated samples demonstrated their robustness against steam activation; therefore heat treatment should be conducted as post treatment for effective CVD process. One of the samples which was prepared by this procedure, 8ST30-8ANL10-8ST50-9.5HT30 (sample #5) showed 0.112 mmol/g of arsenate adsorption capacity, and it was at least 70% higher than that of any other prepared samples. To inspect the high adsorption capacity of this sample, the effect of solution pH, pore structure parameters, elemental analysis, and Boehm titration was conducted comparing with the other prepared samples.

Removal of Rhodamine B from Aqueous Solution Using ACF/CNT Composites Prepared by Chemical Vapor Deposition

2010 ◽  
Vol 156-157 ◽  
pp. 477-480
Author(s):  
Li Ping Wang ◽  
Zhu Cheng Huang ◽  
Ming Yu Zhang
Keyword(s):  
Aqueous Solution ◽  
Chemical Vapor Deposition ◽  
Carbon Fibers ◽  
Rhodamine B ◽  
Vapor Deposition ◽  
Adsorption Mechanism ◽  
Removal Rate ◽  
Chemical Vapor ◽  
Bet Surface Area ◽  
Adsorption Ability

ACF/CNT composites were fabricated with carbon nanotubes (CNTs) growing on the surface of activated carbon fibers (ACFs) by chemical vapor deposition (CVD). The properties of ACF/CNT composites were characterized by scanning electron microscopy and BET surface area measurements. In addition, experiments were carried out to investigate effect of contact time, pH and temperature on ACF/CNT composites adsorption ability for rhodamine B from aqueous solution. The results show removal rate of rhodamine B reaches to 98.99％ at 120 min as initial concentration of rhodamine B is 5 mg/L, pH is 7 and temperature is 50 . Adsorption mechanism of ACF/CNT composites is simply discussed.

Coating of continuous carbon fibers with double layers by chemical vapor deposition

2001 ◽  
Vol 11 (PR3) ◽  
pp. Pr3-885-Pr3-892 ◽  
Author(s):  
N. Popovska ◽  
S. Schmidt ◽  
E. Edelmann ◽  
V. K. Wunder ◽  
H. Gerhard ◽  
...  
Keyword(s):  
Chemical Vapor Deposition ◽  
Carbon Fibers ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Double Layers
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