TY - JOUR
T1 - Coffee Husk and Lignin Revalorization :
T2 - modification with Ag Nanoparticles for Heavy Metals Removal and Antifungal Assays
AU - Guevara-Bernal, Daniel Fernando
AU - Cáceres Ortíz, Marlon Yesid
AU - Gutiérrez Cifuentes, Jorge Andrés
AU - Bastos Arrieta, Julio
AU - Palet i Ballús, Cristina
AU - Candela, Angélica María
N1 - Acknowledgments: Acknowledgment to the Grup de Tècniques de Separació en Química (GTS) for allowing and financing the sample analysis, as employees in the study of kinetics modeling. Thanks to the Servei de Microscòpia from Universitat Autónoma de Barcelona for allowing morphological studies of the samples. Moreover, thanks to the Grupo de Investigación en Bioquímica y Microbiología for allowing the microbiology analysis of samples; and thanks to the Grupo en Nuevos Materiales y Energías Alternativas (GINMEA) of the Universidad Santo Tomás for directing the project (GIFQCAAMBUISUPCP62017).
Copyright: © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license
(https://creativecommons.org/licenses/by/4.0/).
PY - 2022
Y1 - 2022
N2 - This study presents the use of the modified coffee husk and coffee lignin as sorbents in the heavy metal ions sorption of Pb(II), Cd(II), Cr(III), and Cu(II) in an aqueous solution. The modification of sorbents was carried out by the impregnation method, using silver nitrate (AgNO3) and sodium borohydride (NaBH4) as a nanoparticles' (NPs) precursor, and reducing agent, respectively. The obtained nanocomposite material was morphologically characterized by electron microscopy. In addition, an evaluation of metal ions' sorption, pseudo-first-order, and pseudo-second-order kinetics modeling was performed. Finally, antifungal activity was evaluated on different Candida species. Coffee and lignin modified with AgNPs increased the extraction capacity with the highest sorption for Pb ions with 2.56 mg/g and 1.44 mg/g, respectively.
AB - This study presents the use of the modified coffee husk and coffee lignin as sorbents in the heavy metal ions sorption of Pb(II), Cd(II), Cr(III), and Cu(II) in an aqueous solution. The modification of sorbents was carried out by the impregnation method, using silver nitrate (AgNO3) and sodium borohydride (NaBH4) as a nanoparticles' (NPs) precursor, and reducing agent, respectively. The obtained nanocomposite material was morphologically characterized by electron microscopy. In addition, an evaluation of metal ions' sorption, pseudo-first-order, and pseudo-second-order kinetics modeling was performed. Finally, antifungal activity was evaluated on different Candida species. Coffee and lignin modified with AgNPs increased the extraction capacity with the highest sorption for Pb ions with 2.56 mg/g and 1.44 mg/g, respectively.
KW - Coffee husk
KW - Lignin
KW - Heavy metals
KW - Silver nanoparticles
KW - Sorption
KW - Antifungal activity
U2 - 10.3390/w14111796
DO - 10.3390/w14111796
M3 - Article
SN - 2073-4441
VL - 14
SP - 1796
EP - 1812
JO - Water (Switzerland)
JF - Water (Switzerland)
IS - 11
ER -