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Solid-phase Synthesis of [4.4] Spirocyclic Oximes
Published on: February 6, 2019
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Síntesis verde de nanopartículas de Ag/AgCl respetuosas con el medio ambiente para su uso como materiales de
Nurdan Kurnaz Yetim1, Elvan Hasanoğlu Özkan2, Naim Aslan3
1Department of Chemistry, Faculty of Arts and Sciences, Kırklareli University, Kırklareli, Türkiye.
Resumen
La síntesis verde creó nanopartículas de plata/cloruro de plata utilizando extracto de Aronia melanocarpa. Estas nanopartículas eliminaron eficazmente metales pesados tóxicos como el cadmio y el plomo de muestras de agua.
Área de la Ciencia:
- Ciencia de Materiales
- Química Ambiental
- Nanotecnología
Sus antecedentes:
- La síntesis verde ofrece una alternativa ecológica para la fabricación de nanopartículas.
- Las nanopartículas de plata (AgNPs) tienen diversas aplicaciones, pero su síntesis a menudo implica productos químicos agresivos.
- La contaminación por metales pesados en el agua plantea importantes riesgos ambientales y para la salud.
Objetivo del estudio:
- Investigar la síntesis verde de nanopartículas de plata (AgNPs) utilizando extracto de fruta de Aronia melanocarpa.
- Caracterizar las AgNPs sintetizadas y explorar su potencial como adsorbentes para la eliminación de metales pesados.
- Optimizar las condiciones para la adsorción de metales pesados utilizando las nanopartículas de Ag/AgCl sintetizadas.
Principales métodos:
- Síntesis verde de AgNPs utilizando extracto de fruta de Aronia melanocarpa como agente reductor.
- Caracterización de las nanopartículas sintetizadas mediante UV-Vis, XRD, SEM-EDX, BET y TEM.
- Optimización de los parámetros de adsorción, incluido el pH, el volumen de la muestra, el eluyente, la dosis del adsorbente y el tiempo de extracción.
- Determinación de la eficiencia de eliminación de metales pesados (Cd(II) y Pb(II)) y los límites de detección.
Principales resultados:
- Se logró la síntesis verde de nanopartículas híbridas de Ag/AgCl.
- La caracterización confirmó la formación de la estructura Ag/AgCl.
- Las condiciones optimizadas arrojaron bajos límites de detección para Pb(II) (9,6 µg/L) y Cd(II) (4,8 µg/L).
- Las NPs de Ag/AgCl sintetizadas demostraron una eliminación eficaz de Cd(II) y Pb(II) de soluciones acuosas.
Conclusiones:
- El extracto de Aronia melanocarpa es un bioreductor eficaz para la síntesis de nanopartículas de Ag/AgCl.
- Las nanopartículas de Ag/AgCl sintetizadas por vía verde muestran ser prometedoras como adsorbentes eficientes para la eliminación de metales pesados tóxicos del agua.
- El método desarrollado ofrece un enfoque rentable y respetuoso con el medio ambiente para la remediación del agua.
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