TY - JOUR
T1 - Production and detailed characterization of bean husk-based carbon
T2 - Efficient cadmium (II) removal from aqueous solutions
AU - Chávez-Guerrero, Leonardo
AU - Rangel-Méndez, René
AU - Muñoz-Sandoval, Emilio
AU - Cullen, David A.
AU - Smith, David J.
AU - Terrones, Humberto
AU - Terrones, Mauricio
N1 - Funding Information:
This work was sponsored by CONACYT-México grants: 56787 (Laboratory for Nanoscience and Nanotechnology Research-LINAN), 48300 (EMS), 45762 (HT), 45772 (MT), 41464-Inter American Collaboration (MT), 42428-Inter American Collaboration (HT), 2004-01-013/SALUD-CONACYT(MT), Fondo Mixto de San Luis Potosí 63001 S-3908 (MT), Fondo Mixto de San Luis Potosí 63072 S-3909 (HT) and PhD scholarship (LCG-166912). The authors are also grateful to D. Ramírez-González, D. Partida-Gutiérrez and G. Ramírez-Manzanares for technical assistance. We acknowledge use of facilities in the John M. Cowley Center for high-resolution electron microscopy at Arizona State University, and partial support from N&F Grant DmR-0303429.
PY - 2008/7
Y1 - 2008/7
N2 - We report the production of a modified carbon by heat treating bean husk (Phaseolus vulgaris) at 270 °C in Ar, followed by chemical activation using HNO3. The material was studied using thermogravimetric analysis (TGA), infrared spectroscopy (IRS), high-resolution transmission electron microscopy (HRTEM), elemental mapping, energy dispersive X-ray spectroscopy (EDX), X-ray powder diffraction and scanning electron microscopy (SEM). Cd 2+ sorption studies with this material were carried out at different concentrations. It was found that cadmium (II) is effectively removed by the modified material obtained from bean husk (180 mg/g). The sorption mechanism is discussed in terms of the activated surface properties. A relationship between the oxygen content and sorption was found in this novel material. Commercial activated carbon (AC) (F400) was used for comparison.
AB - We report the production of a modified carbon by heat treating bean husk (Phaseolus vulgaris) at 270 °C in Ar, followed by chemical activation using HNO3. The material was studied using thermogravimetric analysis (TGA), infrared spectroscopy (IRS), high-resolution transmission electron microscopy (HRTEM), elemental mapping, energy dispersive X-ray spectroscopy (EDX), X-ray powder diffraction and scanning electron microscopy (SEM). Cd 2+ sorption studies with this material were carried out at different concentrations. It was found that cadmium (II) is effectively removed by the modified material obtained from bean husk (180 mg/g). The sorption mechanism is discussed in terms of the activated surface properties. A relationship between the oxygen content and sorption was found in this novel material. Commercial activated carbon (AC) (F400) was used for comparison.
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U2 - 10.1016/j.watres.2008.04.022
DO - 10.1016/j.watres.2008.04.022
M3 - Article
C2 - 18514757
AN - SCOPUS:54049124641
SN - 0043-1354
VL - 42
SP - 3473
EP - 3479
JO - Water Research
JF - Water Research
IS - 13
ER -