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Modification of Activated Carbon Using Nitration Followed by Reduction for Carbon Dioxide Capture
Author(s) -
Shafeeyan Mohammad Saleh,
Houshmand Amirhossein,
AramiNiya Arash,
Razaghizadeh Hosain,
Daud Wan Mohd Ashri Wan
Publication year - 2015
Publication title -
bulletin of the korean chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.237
H-Index - 59
ISSN - 1229-5949
DOI - 10.1002/bkcs.10100
Subject(s) - adsorption , nitration , chemistry , carbon dioxide , desorption , activated carbon , isothermal process , surface modification , nuclear chemistry , organic chemistry , physics , thermodynamics
Activated carbon ( AC ) samples were modified using nitration followed by reduction to enhance their CO 2 adsorption capacities. Besides characterization of the samples, investigation of CO 2 capture performance was conducted by CO 2 isothermal adsorption, temperature‐programmed ( TP ) CO 2 adsorption, cyclic CO 2 adsorption–desorption, and dynamic CO 2 adsorption tests. Almost all modified samples showed a rise in the amount of CO 2 adsorbed when the comparison is made in unit surface area. On the other hand, some of the samples displayed a capacity superior to that of the parent material when compared in mass unit, especially at elevated temperatures. Despite ~65% decrease in the surface area, TP‐CO 2 adsorption of the best samples exhibited increases of ~10 and 70% in CO 2 capture capacity at 30 and 100 °C, respectively.