Competitive Adsorption of Heavy Metals from Aqueous Solution onto Oxidized Activated Carbon Fiber

2018 ◽  
Vol 229 (8) ◽  
Author(s):  
Maria Selene Berber-Mendoza ◽  
Jesús Ivan Martínez-Costa ◽  
Roberto Leyva-Ramos ◽  
Hector Javier Amezquita Garcia ◽  
Nahúm Andrés Medellín Castillo
Keyword(s):  
Heavy Metals ◽  
Aqueous Solution ◽  
Activated Carbon ◽  
Carbon Fiber ◽  
Competitive Adsorption ◽  
Activated Carbon Fiber ◽  
Oxidized Activated Carbon

Competitive Adsorption of Chloroform and Iron Ion onto Activated Carbon Fiber

1999 ◽  
Vol 220 (2) ◽  
pp. 406-409 ◽  
Author(s):  
M. Uchida ◽  
S. Ito ◽  
N. Kawasaki ◽  
T. Nakamura ◽  
S. Tanada
Keyword(s):  
Activated Carbon ◽  
Carbon Fiber ◽  
Competitive Adsorption ◽  
Activated Carbon Fiber ◽  
Iron Ion

scholarly journals Simultaneous Catalysis of Sulfite Oxidation and Uptake of Heavy Metals by Bifunctional Activated Carbon Fiber in Magnesia Desulfurization

Catalysts ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 244
Author(s):  
Yuguo Wang ◽  
Tieyue Qi ◽  
Mengxuan Hu ◽  
Yu Yang ◽  
Lei Xing ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Activated Carbon ◽  
Carbon Fiber ◽  
Catalytic Oxidation ◽  
Single Layer ◽  
Bifunctional Catalyst ◽  
Activated Carbon Fiber ◽  
Impregnation Method ◽  
Characterization Methods ◽  
Operation Conditions

Sulfite and heavy metals are crucial pollutants in the slurry produced by flue gas desulfurization. In this study, a novel cobalt-based activated carbon fiber (Co-ACFs) catalyst-adsorbent was synthesized using an impregnation method; this bifunctional catalyst-adsorbent was used in wet magnesia desulfurization for the simultaneous catalytic oxidation of magnesium sulfite and uptake of heavy metal (Hg2+, Cd2+, and Ni2+) ions. The morphology and surface chemistry of ACFs before and after cobalt loading were investigated using various characterization methods. The kinetics on catalytic oxidation of magnesium sulfite was investigated, and the effects of operation conditions on the simultaneous adsorption capacity of heavy metals were examined. Relative to a non-catalysis material, the 40% Co-ACFs material increased the oxidation rate of magnesium sulfite by more than five times. The Langmuir model can describe the adsorption behavior of Co-ACFs on Hg2+, Cd2+, and Ni2+, indicating that the simultaneous uptake of heavy metals is a single-layer adsorption process. The maximum adsorption capacities for Hg2+, Cd2+, and Ni2+ are 333.3, 500, and 52.6 mg/g, respectively. A pseudo-second-order model confirmed that the removal of heavy metals is controlled by the chemisorption process.

Performance and mechanisms for removal of perfluorooctanoate (PFOA) from aqueous solution by activated carbon fiber

RSC Advances ◽  
2015 ◽  
Vol 5 (106) ◽  
pp. 86927-86933 ◽  
Author(s):  
Yujuan Wang ◽  
Junfeng Niu ◽  
Yang Li ◽  
Taojie Zheng ◽  
Yi Xu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Carbon Fiber ◽  
Activated Carbon Fiber ◽  
Sorption Behavior

The sorption behavior of perfluorooctanoate (PFOA) by activated carbon fiber (ACF) in aqueous solution was investigated.

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