nZVI-Based Nanomaterials Used for Phosphate Removal from Aquatic Systems
| Primer Autor |
Suazo-Hernandez, Jonathan
|
| Co-autores |
Sepulveda, Pamela
Caceres-Jensen, Lizethly
Castro-Rojas, Jorge
Poblete-Grant, Patricia
Bolan, Nanthi
Mora, Maria de la Luz
|
| Título |
nZVI-Based Nanomaterials Used for Phosphate Removal from Aquatic Systems
|
| Editorial |
MDPI
|
| Revista |
NANOMATERIALS
|
| Lenguaje |
en
|
| Resumen |
In the last decade, the application of nanoscale zero-valent iron (nZVI) has garnered great attention as an adsorbent due to its low cost, non-toxicity, high porosity, and BET-specific surface area. In particular, the immobilization of nZVI particles onto inorganic and organic substrates (nanocomposites) decreased its agglomeration, allowing them to be effective and achieve greater adsorption of pollutants than pristine nanoparticles (NPs). Although nZVI began to be used around 2004 to remove pollutants, there are no comprehensive review studies about phosphate removal from aquatic systems to date. For this reason, this study will show different types of nZVI, pristine nZVI, and its nanocomposites, that exist on the market, how factors such as pH solution, oxygen, temperature, doses of adsorbent, initial phosphate concentration, and interferents affect phosphate adsorption capacity, and mechanisms involved in phosphate removal. We determined that nanocomposites did not always have higher phosphate adsorption than pristine nZVI particles. Moreover, phosphate can be removed by nZVI-based nanoadsorbents through electrostatic attraction, ion exchange, chemisorption, reduction, complexation, hydrogen bonding, and precipitation mechanisms. Using the partition coefficient (PC) values, we found that sepiolite-nZVI is the most effective nanoadsorbent that exists to remove phosphate from aqueous systems. We suggest future studies need to quantify the PC values for nZVI-based nanoadsorbents as well as ought to investigate their phosphate removal efficiency under natural environmental conditions.
|
| Fecha Publicación |
2023
|
| Tipo de Recurso |
artículo de revisión
|
| doi |
10.3390/nano13030399
|
| Formato Recurso |
PDF
|
| Palabras Claves |
nanoscale zero-valent iron
nanocomposites
phosphorus
adsorption
aquatic environment
|
| Ubicación del archivo | |
| Categoría OCDE |
Química
Ciencia y tecnología - Otros temas
Ciencia de materiales
Física
|
| Materias |
nanoescala del hierro de valencia cero
nanocompuestos
fósforo
adsorción
ambiente acuático
|
| Identificador del recurso (Mandatado-único) |
artículo de revisión
|
| Versión del recurso (Recomendado-único) |
versión publicada
|
| License |
CC BY 4.0
|
| Condición de la licencia (Recomendado-repetible) |
CC BY 4.0
|
| Derechos de acceso |
acceso abierto
|
| Access Rights |
acceso abierto
|
| Id de Web of Science |
WOS:000929506600001
|
| Tipo de ruta |
verde# dorado
|
| Categoría WOS |
Química
Ciencia y tecnología - Otros temas
Ciencia de materiales
Física
|
cienciaabierta.ufro.cl
ciencia.abierta@ufrontera.cl