TY - JOUR
T1 - Activated carbon production from the Guadua amplexifolia using a combination of physical and chemical activation
AU - Salas-Enríquez, B. G.
AU - Torres-Huerta, A. M.
AU - Conde-Barajas, E.
AU - Domínguez-Crespo, M. A.
AU - Díaz-García, L.
AU - de la Negrete-Rodríguez, Ma Luz X.
N1 - Publisher Copyright:
© 2016, Akadémiai Kiadó, Budapest, Hungary.
PY - 2016/6/1
Y1 - 2016/6/1
N2 - This paper presents the use of the Guadua amplexifolia bamboo specie as a precursor to obtain activated carbon using a combination of physical and chemical activation with H3PO4 or NaOH. The effect of different parameters such as carbonization temperature, activation temperature and activation time as well as chemical agent on the yield, functional groups and iodine number was analyzed using a full factorial experimental design and the response surface methodologies. From the analysis of variance, the most influence factor of each experimental design was identified. Moreover, the activated carbon was evaluated for the removal of non-biodegradable organic matter (COD) in leachates. The optimum conditions were obtained in the carbonized samples at 350 °C, impregnated by H3PO4 and thermal treatment at 500 °C during 120 min where a high surface area of ~1226.8 m2 g−1, a total pore volume of ~1.21 cm3 g−1 and an average pore diameter of ~3.83 nm were observed. Important differences were observed in the morphology and microporosity of the activated carbons as a function of the activating conditions. The results confirm the viability of G. amplexifolia bamboo specie as precursor for activated carbon production and promising absorbents for the elimination of COD in leachates.
AB - This paper presents the use of the Guadua amplexifolia bamboo specie as a precursor to obtain activated carbon using a combination of physical and chemical activation with H3PO4 or NaOH. The effect of different parameters such as carbonization temperature, activation temperature and activation time as well as chemical agent on the yield, functional groups and iodine number was analyzed using a full factorial experimental design and the response surface methodologies. From the analysis of variance, the most influence factor of each experimental design was identified. Moreover, the activated carbon was evaluated for the removal of non-biodegradable organic matter (COD) in leachates. The optimum conditions were obtained in the carbonized samples at 350 °C, impregnated by H3PO4 and thermal treatment at 500 °C during 120 min where a high surface area of ~1226.8 m2 g−1, a total pore volume of ~1.21 cm3 g−1 and an average pore diameter of ~3.83 nm were observed. Important differences were observed in the morphology and microporosity of the activated carbons as a function of the activating conditions. The results confirm the viability of G. amplexifolia bamboo specie as precursor for activated carbon production and promising absorbents for the elimination of COD in leachates.
KW - Activated carbon
KW - Bamboo
KW - Chemical activation
KW - Guadua amplexifolia
KW - Response surface methodology
UR - http://www.scopus.com/inward/record.url?scp=84955254712&partnerID=8YFLogxK
U2 - 10.1007/s10973-016-5238-8
DO - 10.1007/s10973-016-5238-8
M3 - Artículo
SN - 1388-6150
VL - 124
SP - 1383
EP - 1398
JO - Journal of Thermal Analysis and Calorimetry
JF - Journal of Thermal Analysis and Calorimetry
IS - 3
ER -