TY - JOUR
T1 - Preparation of functionalized and metal-impregnated activated carbon by a single-step activation method
AU - Dastgheib, Seyed A.
AU - Ren, Jianli
AU - Rostam-Abadi, Massoud
AU - Chang, Ramsay
N1 - Funding Information:
The Electric Power Research Institute (EPRI) is acknowledged as the main funding source for this work. Zhejiang University of Technology, China , is recognized for its partial financial support of Dr. Jianli Ren while visiting the University of Illinois at Urbana-Champaign. Authors would like to thank Dr. Xinhuai Ye and Ruth Kaplan from the Illinois State Geological Survey for their assistance in performing CWAO and mercury adsorption experiments. SEM, XPS, and XRD testes were carried out in the Frederick Seitz Materials Research Laboratory Central Facilities, University of Illinois, which are partially supported by the U.S. Department of Energy under Grants DE-FG02-07ER46453 and DE-FG02-07ER46471 .
PY - 2014/1/30
Y1 - 2014/1/30
N2 - A rapid method to prepare functionalized and metal-impregnated activated carbon from coal is described in this paper. A mixture of ferric chloride and a sub-bituminous coal was used to demonstrate simultaneous coal activation, chlorine functionalization, and iron/iron oxides impregnation in the resulting porous carbon products. The FeCl 3 concentration in the mixture, the method to prepare the FeCl 3 -coal mixture (solid mixing or liquid impregnation), and activation atmosphere and temperature impacted the surface area and porosity development, Cl functionalization, and iron species impregnation and dispersion in the carbon products. Samples activated in nitrogen or a simulated flue gas at 600 or 1000 C for 1-2 min had surface areas up to ∼800 m 2 /g, bulk iron contents up to 18 wt%, and surface chlorine contents up to 27 wt%. Potential catalytic and adsorption application of the carbon materials was explored in catalytic wet air oxidation (CWAO) of phenol and adsorption of ionic mercury from aqueous solutions. Results indicated that impregnated activated carbons outperformed their non-impregnated counterparts in both the CWAO and adsorption tests.
AB - A rapid method to prepare functionalized and metal-impregnated activated carbon from coal is described in this paper. A mixture of ferric chloride and a sub-bituminous coal was used to demonstrate simultaneous coal activation, chlorine functionalization, and iron/iron oxides impregnation in the resulting porous carbon products. The FeCl 3 concentration in the mixture, the method to prepare the FeCl 3 -coal mixture (solid mixing or liquid impregnation), and activation atmosphere and temperature impacted the surface area and porosity development, Cl functionalization, and iron species impregnation and dispersion in the carbon products. Samples activated in nitrogen or a simulated flue gas at 600 or 1000 C for 1-2 min had surface areas up to ∼800 m 2 /g, bulk iron contents up to 18 wt%, and surface chlorine contents up to 27 wt%. Potential catalytic and adsorption application of the carbon materials was explored in catalytic wet air oxidation (CWAO) of phenol and adsorption of ionic mercury from aqueous solutions. Results indicated that impregnated activated carbons outperformed their non-impregnated counterparts in both the CWAO and adsorption tests.
KW - Activated carbon
KW - Coal
KW - Impregnation
KW - Microporous materials
KW - Single-step method
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U2 - 10.1016/j.apsusc.2013.11.005
DO - 10.1016/j.apsusc.2013.11.005
M3 - Article
AN - SCOPUS:84890979408
SN - 0169-4332
VL - 290
SP - 92
EP - 101
JO - Applied Surface Science
JF - Applied Surface Science
ER -