TY - JOUR
T1 - Activated Carbons Prepared from a Broad Range of Residual Agricultural Biomasses Tested for Xylene Abatement in the Gas Phase
AU - Cruz, Gerardo Juan Francisco
AU - Kuboňová, Lenka
AU - Aguirre, Dorian Yasser
AU - Matějová, Lenka
AU - Peikertová, Pavlína
AU - Troppová, Ivana
AU - Cegmed, Erik
AU - Wach, Anna
AU - Kustrowski, Piotr
AU - Gomez, Monica Marcela
AU - Obalová, Lucie
N1 - Publisher Copyright:
© 2017 American Chemical Society.
PY - 2017/3/6
Y1 - 2017/3/6
N2 - The environmental problems in Peru are rooted in the waste management of the residual agricultural biomass. Via our cooperative international research, nine different agricultural wastes from Peru were used as renewable sources to produce activated carbons that were tested in gas-phase xylene adsorption. The special properties of agro-waste activated carbons are the very large mesopore surface area, the narrow pore size distribution within the microporous-mesoporous region, and the slightly acidic character in the presence of oxygen-containing surface groups. The textural, structural, and surface properties of nine agro-waste activated carbons were correlated with their adsorption capacities in xylene adsorption and compared with those of a commercial activated carbon made of black coal. Adsorption capacities of agro-waste activated carbons were in the range of 371-115 mgxylene/gAC, whereas the adsorption capacity was 214 mgxylene/gAC for black coal-activated carbon. Higher adsorption capacities of ACs can be assigned to the synergism of their textural properties (larger mesopore surface area and larger micropore volume related to total pore volume) and their surface properties (lower content of surface oxygen functional groups related to their less acidic character and higher π- π∗ transitions in aromatic rings resulting in fewer defects within the graphitic structure).
AB - The environmental problems in Peru are rooted in the waste management of the residual agricultural biomass. Via our cooperative international research, nine different agricultural wastes from Peru were used as renewable sources to produce activated carbons that were tested in gas-phase xylene adsorption. The special properties of agro-waste activated carbons are the very large mesopore surface area, the narrow pore size distribution within the microporous-mesoporous region, and the slightly acidic character in the presence of oxygen-containing surface groups. The textural, structural, and surface properties of nine agro-waste activated carbons were correlated with their adsorption capacities in xylene adsorption and compared with those of a commercial activated carbon made of black coal. Adsorption capacities of agro-waste activated carbons were in the range of 371-115 mgxylene/gAC, whereas the adsorption capacity was 214 mgxylene/gAC for black coal-activated carbon. Higher adsorption capacities of ACs can be assigned to the synergism of their textural properties (larger mesopore surface area and larger micropore volume related to total pore volume) and their surface properties (lower content of surface oxygen functional groups related to their less acidic character and higher π- π∗ transitions in aromatic rings resulting in fewer defects within the graphitic structure).
KW - Activated carbon
KW - Adsorption
KW - Carbonization
KW - Residual agricultural biomass
KW - Xylene abatement
UR - http://www.scopus.com/inward/record.url?scp=85014526754&partnerID=8YFLogxK
U2 - 10.1021/acssuschemeng.6b02703
DO - 10.1021/acssuschemeng.6b02703
M3 - Artículo
AN - SCOPUS:85014526754
SN - 2168-0485
VL - 5
SP - 2368
EP - 2374
JO - ACS Sustainable Chemistry and Engineering
JF - ACS Sustainable Chemistry and Engineering
IS - 3
ER -
