Combined Effect of Soil Particle Size Fractions and Engineered Nanoparticles on Phosphate Sorption Processes in Volcanic Soils Evaluated by Elovich and Langmuir-Freundlich Models

Primer Autor
de la Luz Mora, Maria
Co-autores
Suazo-Hernandez, Jonathan
Klumpp, Erwin
Arancibia-Miranda, Nicolas
Jara, Alejandra
Poblete-Grant, Patricia
Sepulveda, Pamela
Bol, Roland
Título
Combined Effect of Soil Particle Size Fractions and Engineered Nanoparticles on Phosphate Sorption Processes in Volcanic Soils Evaluated by Elovich and Langmuir-Freundlich Models
Editorial
SPRINGER INT PUBL AG
Revista
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
Lenguaje
en
Resumen
Engineered nanoparticles (ENPs) released into the environment can affect phosphate (Pi) availability in soils. In this study, we evaluated the effect of silver (Ag) or copper (Cu) ENPs (3 and 5%, w/w) on Pi sorption processes in soil particle size fractions. The 2000-32 mu m, 32-2 mu m, and < 2 mu m fractions were obtained from an agricultural volcanic soil by wet-sieving and sedimentation methods. The Elovich kinetic and Langmuir-Freundlich (L-F) isotherm models were used to describe the adsorption data obtained from batch experiments. The initial adsorption rate (alpha) was determined from the Elovich model to be 105% higher for the 2000-32 mu m fraction and 203% higher for the 32-2 mu m fraction than for the < 2 mu m fraction (671 mmol kg(-1) min(-1)). Meanwhile, with both doses of Cu ENPs, the alpha values are increased for the soil size fractions, resulting in the formation of adsorption sites for Pi. However, with Ag ENPs, the alpha values are both increased and decreased for the different soil fractions, therefore, they can block or generate adsorption sites. The maximum adsorption capacity (q(max)) was determined from the L-F model to be 17% higher for the 32-2 mu m fraction and 47% higher for the < 2 mu m fraction compared to that for the 2000-32 mu m fraction (180 mmol kg(-1)). With both ENPs, the q(max) values are found to be between 1.1 and 1.9 times higher with respect to the 2000-32 mu m fraction without ENPs. In the absence of ENPs, the highest Pi desorption was found in the 32-2 mu m fraction followed by 2000-32 mu m fraction, and finally < 2 mu m fraction. Moreover, the Pi desorption decreased for soil size fractions with increasing Ag or Cu ENPs content, which was found to be more pronounced in the 32-2 mu m fraction in the presence of Cu ENPs. The presence of Ag and Cu ENPs increases Pi retention in soil size fractions, which can decrease soil fertility. Thus, future studies are recommended to find out the critical amounts of ENPs, which may favor Pi retention without any negative effects on agricultural soils.
Tipo de Recurso
artículo original
Description
This work was supported by FONDECYT Project N degrees 1181050, 1191018 and ANID Ph.D. scholarships N degrees 21171685.
Este trabajo contó con el apoyo del Proyecto FONDECYT N grados 1181050, 1191018 y el Ph.D. becas N grados 21171685.
doi
10.1007/s42729-022-00919-4
Formato Recurso
PDF
Palabras Claves
Engineered nanoparticles
Phosphate
Soil particle size fractions
Adsorption
Volcanic soil
PHOSPHORUS ADSORPTION
SILVER NANOPARTICLES
ORGANIC-MATTER
RELEASE
CHARGE
PH
DESORPTION
TRANSPORT
NITRATE
OXIDES
Ubicación del archivo
Categoría OCDE
Ciencias Vegetales
Ciencias Ambientales
Ciencia del suelo
Materias
Nanopartículas diseñadas
Fosfato
Fracciones del tamaño de partículas del suelo
Adsorción
Suelo volcánico
ADSORCIÓN DE FÓSFORO
NANOPARTÍCULAS DE PLATA
MATERÍA ORGÁNICA
LIBERACIÓN
CARGA
PH
DESORPCIÓN
TRANSPORTE
NITRATO
ÓXIDOS
Título de la cita (Recomendado-único)
Combined Effect of Soil Particle Size Fractions and Engineered Nanoparticles on Phosphate Sorption Processes in Volcanic Soils Evaluated by Elovich and Langmuir-Freundlich Models
Página de inicio (Recomendado-único)
3685
Página final (Recomendado-único)
3696
Identificador del recurso (Mandatado-único)
artículo original
Versión del recurso (Recomendado-único)
version publicada
Condición de la licencia (Recomendado-repetible)
0
Derechos de acceso
restringido
Access Rights
restringido
Referencia del Financiador (Mandatado si es aplicable-repetible)
ANID-FONDECYT 1181050
ANID-FONDECYT 1191018
ANID 21171685
ANID FONDECYT 1181050
ANID FONDECYT 1191018
Id de Web of Science
WOS:000835156800003
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